UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-Q
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended JuneSeptember 30, 2021
or
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from ___ to ___ 
Commission File Number1-31993
STERLING CONSTRUCTION COMPANY, INC. 
(Exact name of registrant as specified in its charter)
Delaware25-1655321
(State or other jurisdiction of incorporation
or organization)
(I.R.S. Employer
Identification No.)
  
1800 Hughes Landing Blvd.
The Woodlands, Texas
 
77380
(Address of principal executive offices)(Zip Code)
  
Registrant’s telephone number, including area code:  (281) 214-0777
Securities registered pursuant to Section 12(b) of the Act:
Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC
(Title of each class)(Trading Symbol)(Name of each exchange on which registered)
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days. þYes ¨ No
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). þ Yes ¨ No
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large accelerated filer¨Accelerated filerþ
Non-accelerated filer¨Smaller reporting company
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.¨
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). ☐ Yes þ No
The number of shares outstanding of the registrant’s common stock as of July 30,October 29, 2021 – 28,764,38128,794,510



STERLING CONSTRUCTION COMPANY, INC.
QUARTERLY REPORT ON FORM 10-Q
TABLE OF CONTENTS
 
Page
  
  
  
  
  
  
 


2


PART I—FINANCIAL INFORMATION
Item 1. Condensed Consolidated Financial Statements
 
STERLING CONSTRUCTION COMPANY, INC. & SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(In thousands, except per share data)
(Unaudited) 
Three Months Ended June 30,Six Months Ended June 30, Three Months Ended September 30,Nine Months Ended September 30,
2021202020212020 2021202020212020
RevenuesRevenues$401,666 $400,038 $716,982 $696,726 Revenues$463,449 $383,458 $1,180,431 $1,080,184 
Cost of revenuesCost of revenues(345,419)(340,439)(615,703)(601,882)Cost of revenues(405,645)(333,542)(1,021,348)(935,424)
Gross profitGross profit56,247 59,599 101,279 94,844 Gross profit57,804 49,916 159,083 144,760 
General and administrative expenseGeneral and administrative expense(15,829)(18,451)(32,928)(36,055)General and administrative expense(19,637)(15,154)(52,565)(51,209)
Intangible asset amortizationIntangible asset amortization(2,866)(2,866)(5,732)(5,703)Intangible asset amortization(2,866)(2,866)(8,598)(8,569)
Acquisition related costsAcquisition related costs(139)(612)Acquisition related costs— (401)— (1,013)
Other operating expense, netOther operating expense, net(4,832)(5,097)(7,144)(7,325)Other operating expense, net(3,270)(2,664)(10,414)(9,989)
Operating incomeOperating income32,720 33,046 55,475 45,149 Operating income32,031 28,831 87,506 73,980 
Interest incomeInterest income12 24 26 123 Interest income13 23 39 146 
Interest expenseInterest expense(5,737)(7,557)(11,741)(15,360)Interest expense(3,919)(7,177)(15,660)(22,537)
Gain on extinguishment of debt, netGain on extinguishment of debt, net1,401 1,064 Gain on extinguishment of debt, net968 — 2,032 — 
Income before income taxesIncome before income taxes28,396 25,513 44,824 29,912 Income before income taxes29,093 21,677 73,917 51,589 
Income tax expenseIncome tax expense(8,179)(7,248)(12,939)(8,432)Income tax expense(7,336)(6,280)(20,275)(14,712)
Net incomeNet income20,217 18,265 31,885 21,480 Net income21,757 15,397 53,642 36,877 
Less: Net income attributable to noncontrolling interestsLess: Net income attributable to noncontrolling interests(161)(55)(1,274)(155)Less: Net income attributable to noncontrolling interests(631)(240)(1,905)(395)
Net income attributable to Sterling common stockholdersNet income attributable to Sterling common stockholders$20,056 $18,210 $30,611 $21,325 Net income attributable to Sterling common stockholders$21,126 $15,157 $51,737 $36,482 
Net income per share attributable to Sterling common stockholders:Net income per share attributable to Sterling common stockholders:   Net income per share attributable to Sterling common stockholders:   
BasicBasic$0.70 $0.65 $1.08 $0.77 Basic$0.74 $0.54 $1.81 $1.31 
DilutedDiluted$0.69 $0.65 $1.06 $0.76 Diluted$0.72 $0.54 $1.79 $1.30 
Weighted average common shares outstanding:Weighted average common shares outstanding:Weighted average common shares outstanding:
BasicBasic28,582 27,941 28,433 27,794 Basic28,710 28,003 28,527 27,832 
DilutedDiluted29,054 27,957 28,878 27,887 Diluted29,213 28,233 28,927 27,986 
 
The accompanying Notes are an integral part of these Condensed Consolidated Financial Statements.

3


STERLING CONSTRUCTION COMPANY, INC. & SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(In thousands)
(Unaudited) 
Three Months Ended June 30,Six Months Ended June 30,Three Months Ended September 30,Nine Months Ended September 30,
20212020202120202021202020212020
Net incomeNet income$20,217 $18,265 $31,885 $21,480 Net income$21,757 $15,397 $53,642 $36,877 
Other comprehensive income, net of taxOther comprehensive income, net of taxOther comprehensive income, net of tax
Change in interest rate swap, net of tax (Note 9)Change in interest rate swap, net of tax (Note 9)728 (53)1,623 (7,114)Change in interest rate swap, net of tax (Note 9)718 1,010 2,341 (6,104)
Total comprehensive incomeTotal comprehensive income20,945 18,212 33,508 14,366 Total comprehensive income22,475 16,407 55,983 30,773 
Less: Comprehensive income attributable to noncontrolling interestsLess: Comprehensive income attributable to noncontrolling interests(161)(55)(1,274)(155)Less: Comprehensive income attributable to noncontrolling interests(631)(240)(1,905)(395)
Comprehensive income attributable to Sterling common stockholdersComprehensive income attributable to Sterling common stockholders$20,784 $18,157 $32,234 $14,211 Comprehensive income attributable to Sterling common stockholders$21,844 $16,167 $54,078 $30,378 
 
The accompanying Notes are an integral part of these Condensed Consolidated Financial Statements.
4


STERLING CONSTRUCTION COMPANY, INC. & SUBSIDIARIES
CONDENSED CONSOLIDATED BALANCE SHEETS
(In thousands, except per share data)
(Unaudited)
June 30,
2021
December 31,
2020
September 30,
2021
December 31,
2020
AssetsAssetsAssets
Current assets:Current assets:Current assets:
Cash and cash equivalents ($30,006 and $26,122 related to variable interest entities (“VIEs”))$93,630 $66,185 
Accounts receivable ($26,778 and $25,789 related to VIEs)211,529 177,424 
Contract assets ($11,704 and $8,370 related to VIEs)86,184 84,975 
Receivables from and equity in construction joint ventures ($6,027 and $9,708 related to VIEs)18,011 16,653 
Other current assets ($3,188 and $1,493 related to VIEs)24,738 16,306 
Cash and cash equivalents ($36,809 and $26,122 related to variable interest entities (“VIEs”))Cash and cash equivalents ($36,809 and $26,122 related to variable interest entities (“VIEs”))$117,702 $66,185 
Accounts receivable ($29,761 and $25,789 related to VIEs)Accounts receivable ($29,761 and $25,789 related to VIEs)218,683 177,424 
Contract assets ($11,655 and $8,370 related to VIEs)Contract assets ($11,655 and $8,370 related to VIEs)85,498 84,975 
Receivables from and equity in construction joint ventures ($7,024 and $9,708 related to VIEs)Receivables from and equity in construction joint ventures ($7,024 and $9,708 related to VIEs)21,656 16,653 
Other current assets ($3,569 and $1,493 related to VIEs)Other current assets ($3,569 and $1,493 related to VIEs)22,483 16,306 
Total current assetsTotal current assets434,092 361,543 Total current assets466,022 361,543 
Property and equipment, net ($9,539 and $6,010 related to VIEs)142,015 126,668 
Operating lease right-of-use assets, net ($4,279 and $4,213 related to VIEs)16,609 16,515 
Property and equipment, net ($9,943 and $6,010 related to VIEs)Property and equipment, net ($9,943 and $6,010 related to VIEs)148,444 126,668 
Operating lease right-of-use assets, net ($5,133 and $4,213 related to VIEs)Operating lease right-of-use assets, net ($5,133 and $4,213 related to VIEs)17,470 16,515 
Goodwill ($1,501 and $1,501 related to VIEs)Goodwill ($1,501 and $1,501 related to VIEs)192,014 192,014 Goodwill ($1,501 and $1,501 related to VIEs)192,014 192,014 
Other intangibles, netOther intangibles, net239,155 244,887 Other intangibles, net236,289 244,887 
Deferred tax asset, netDeferred tax asset, net7,817 Deferred tax asset, net— 7,817 
Other non-current assets, netOther non-current assets, net3,305 3,250 Other non-current assets, net4,078 3,250 
Total assetsTotal assets$1,027,190 $952,694 Total assets$1,064,317 $952,694 
Liabilities and Stockholders’ EquityLiabilities and Stockholders’ EquityLiabilities and Stockholders’ Equity
Current liabilities:Current liabilities:Current liabilities:
Accounts payable ($26,209 and $19,505 related to VIEs)$137,934 $95,201 
Contract liabilities ($17,953 and $17,678 related to VIEs)141,236 114,019 
Current maturities of long-term debt ($6,793 and $6,793 related to VIEs)23,186 77,434 
Current portion of long-term lease obligations ($2,011 and $1,801 related to VIEs)7,942 7,588 
Accrued compensation ($3,608 and $2,141 related to VIEs)27,134 18,013 
Other current liabilities ($1,472 and $1,374 related to VIEs)8,810 9,629 
Accounts payable ($30,264 and $19,505 related to VIEs)Accounts payable ($30,264 and $19,505 related to VIEs)$142,740 $95,201 
Contract liabilities ($23,410 and $17,678 related to VIEs)Contract liabilities ($23,410 and $17,678 related to VIEs)141,236 114,019 
Current maturities of long-term debt ($4,857 and $6,793 related to VIEs)Current maturities of long-term debt ($4,857 and $6,793 related to VIEs)21,239 77,434 
Current portion of long-term lease obligations ($2,253 and $1,801 related to VIEs)Current portion of long-term lease obligations ($2,253 and $1,801 related to VIEs)8,314 7,588 
Income taxes payableIncome taxes payable306 — 
Accrued compensation ($4,235 and $2,141 related to VIEs)Accrued compensation ($4,235 and $2,141 related to VIEs)34,801 18,013 
Other current liabilities ($1,351 and $1,374 related to VIEs)Other current liabilities ($1,351 and $1,374 related to VIEs)9,088 9,629 
Total current liabilitiesTotal current liabilities346,242 321,884 Total current liabilities357,724 321,884 
Long-term debt ($79 and $53 related to VIEs)303,531 291,249 
Long-term lease obligations ($2,268 and $2,412 related to VIEs)8,783 8,958 
Long-term debt ($69 and $53 related to VIEs)Long-term debt ($69 and $53 related to VIEs)299,923 291,249 
Long-term lease obligations ($2,880 and $2,412 related to VIEs)Long-term lease obligations ($2,880 and $2,412 related to VIEs)9,306 8,958 
Members’ interest subject to mandatory redemption and undistributed earningsMembers’ interest subject to mandatory redemption and undistributed earnings56,488 51,290 Members’ interest subject to mandatory redemption and undistributed earnings54,766 51,290 
Deferred tax liability, netDeferred tax liability, net3,956 Deferred tax liability, net10,287 — 
Other long-term liabilities ($722 and $722 related to VIEs)Other long-term liabilities ($722 and $722 related to VIEs)9,420 10,584 Other long-term liabilities ($722 and $722 related to VIEs)9,218 10,584 
Total liabilitiesTotal liabilities728,420 683,965 Total liabilities741,224 683,965 
Commitments and contingencies (Note 11)Commitments and contingencies (Note 11)00Commitments and contingencies (Note 11)00
Stockholders’ equity:Stockholders’ equity:Stockholders’ equity:
Common stock, par value $0.01 per share; 38,000 shares authorized, 28,638 and 28,279 shares issued, 28,638 and 28,184 shares outstanding286 283 
Common stock, par value $0.01 per share; 38,000 shares authorized, 28,782 and 28,279 shares issued, 28,782 and 28,184 shares outstandingCommon stock, par value $0.01 per share; 38,000 shares authorized, 28,782 and 28,279 shares issued, 28,782 and 28,184 shares outstanding288 283 
Additional paid in capitalAdditional paid in capital253,467 256,423 Additional paid in capital255,313 256,423 
Treasury stock, at cost: 0 and 95 sharesTreasury stock, at cost: 0 and 95 shares(1,445)Treasury stock, at cost: 0 and 95 shares— (1,445)
Retained earningsRetained earnings47,884 17,273 Retained earnings69,010 17,273 
Accumulated other comprehensive lossAccumulated other comprehensive loss(3,641)(5,264)Accumulated other comprehensive loss(2,923)(5,264)
Total Sterling stockholders’ equityTotal Sterling stockholders’ equity297,996 267,270 Total Sterling stockholders’ equity321,688 267,270 
Noncontrolling interestsNoncontrolling interests774 1,459 Noncontrolling interests1,405 1,459 
Total stockholders’ equityTotal stockholders’ equity298,770 268,729 Total stockholders’ equity323,093 268,729 
Total liabilities and stockholders’ equityTotal liabilities and stockholders’ equity$1,027,190 $952,694 Total liabilities and stockholders’ equity$1,064,317 $952,694 
 The accompanying Notes are an integral part of these Condensed Consolidated Financial Statements.
5


STERLING CONSTRUCTION COMPANY, INC. & SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands)
(Unaudited)
Six Months Ended June 30,Nine Months Ended September 30,
2021202020212020
Cash flows from operating activities:Cash flows from operating activities:Cash flows from operating activities:
Net incomeNet income$31,885 $21,480 Net income$53,642 $36,877 
Adjustments to reconcile net income to net cash provided by operating activities:Adjustments to reconcile net income to net cash provided by operating activities:Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortizationDepreciation and amortization16,707 16,541 Depreciation and amortization25,336 24,639 
Amortization of debt issuance costs and non-cash interestAmortization of debt issuance costs and non-cash interest1,264 1,762 Amortization of debt issuance costs and non-cash interest1,756 2,489 
Gain on disposal of property and equipmentGain on disposal of property and equipment(437)(598)Gain on disposal of property and equipment(1,176)(1,042)
Gain on debt extinguishment, netGain on debt extinguishment, net(1,064)Gain on debt extinguishment, net(2,032)— 
Deferred taxesDeferred taxes11,294 6,223 Deferred taxes17,413 10,946 
Stock-based compensation expenseStock-based compensation expense3,850 6,196 Stock-based compensation expense5,690 7,961 
Change in fair value of interest rate swapChange in fair value of interest rate swap(51)272 Change in fair value of interest rate swap(41)251 
Changes in operating assets and liabilities (Note 15)Changes in operating assets and liabilities (Note 15)28,044 451 Changes in operating assets and liabilities (Note 15)35,154 10,134 
Net cash provided by operating activitiesNet cash provided by operating activities91,492 52,327 Net cash provided by operating activities135,742 92,255 
Cash flows from investing activities:Cash flows from investing activities:Cash flows from investing activities:
Capital expendituresCapital expenditures(22,150)(14,574)Capital expenditures(39,315)(22,088)
Proceeds from sale of property and equipmentProceeds from sale of property and equipment690 769 Proceeds from sale of property and equipment2,093 1,557 
Net cash used in investing activitiesNet cash used in investing activities(21,460)(13,805)Net cash used in investing activities(37,222)(20,531)
Cash flows from financing activities:Cash flows from financing activities:Cash flows from financing activities:
Repayments of debtRepayments of debt(40,072)(22,644)Repayments of debt(44,184)(52,695)
Distributions to noncontrolling interest ownersDistributions to noncontrolling interest owners(1,959)Distributions to noncontrolling interest owners(1,959)— 
OtherOther(602)9,067 Other(603)9,137 
Net cash used in financing activitiesNet cash used in financing activities(42,633)(13,577)Net cash used in financing activities(46,746)(43,558)
Net change in cash, cash equivalents, and restricted cashNet change in cash, cash equivalents, and restricted cash27,399 24,945 Net change in cash, cash equivalents, and restricted cash51,774 28,166 
Cash, cash equivalents, and restricted cash at beginning of periodCash, cash equivalents, and restricted cash at beginning of period72,642 50,562 Cash, cash equivalents, and restricted cash at beginning of period72,642 50,562 
Cash, cash equivalents, and restricted cash at end of periodCash, cash equivalents, and restricted cash at end of period100,041 75,507 Cash, cash equivalents, and restricted cash at end of period124,416 78,728 
Less: restricted cash (Other current assets)Less: restricted cash (Other current assets)(6,411)(4,895)Less: restricted cash (Other current assets)(6,714)(6,135)
Cash and cash equivalents at end of periodCash and cash equivalents at end of period$93,630 $70,612 Cash and cash equivalents at end of period$117,702 $72,593 
Supplemental disclosures of cash flow information:Supplemental disclosures of cash flow information:Supplemental disclosures of cash flow information:
Non-cash items:Non-cash items:Non-cash items:
Capital expendituresCapital expenditures$4,425 $Capital expenditures$116 $— 
The accompanying Notes are an integral part of these Condensed Consolidated Financial Statements.
6


STERLING CONSTRUCTION COMPANY, INC. & SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY
(In thousands)
(Unaudited) 
Six Months Ended June 30, 2021Nine Months Ended September 30, 2021
Common StockAdditional Paid in CapitalTreasury StockRetained Earnings (Deficit)Accumulated Other Comprehensive LossTotal Sterling Stockholders’ EquityNon-controlling InterestsTotal Stockholders’ EquityCommon StockAdditional Paid in CapitalTreasury StockRetained Earnings (Deficit)Accumulated Other Comprehensive LossTotal Sterling Stockholders’ EquityNon-controlling InterestsTotal Stockholders’ Equity
SharesAmountSharesAmountSharesAmountSharesAmount
Balance at December 31, 2020Balance at December 31, 202028,184 $283 $256,423 95 $(1,445)$17,273 $(5,264)$267,270 $1,459 $268,729 Balance at December 31, 202028,184 $283 $256,423 95 $(1,445)$17,273 $(5,264)$267,270 $1,459 $268,729 
Net incomeNet income— — — — — 10,555 — 10,555 1,113 11,668 Net income— — — — — 10,555 — 10,555 1,113 11,668 
Change in interest rate swapChange in interest rate swap— — — — — — 895 895 — 895 Change in interest rate swap— — — — — — 895 895 — 895 
Stock-based compensationStock-based compensation— — 1,835 — — — — 1,835 — 1,835 Stock-based compensation— — 1,835 — — — — 1,835 — 1,835 
Distributions to ownersDistributions to owners— — — — — — — (1,959)(1,959)Distributions to owners— — — — — — — — (1,959)(1,959)
Issuance of stockIssuance of stock668 (1,602)(111)1,741 — — 144 — 144 Issuance of stock668 (1,602)(111)1,741 — — 144 — 144 
Shares withheld for taxesShares withheld for taxes(246)(2)(5,321)16 (296)— — (5,619)— (5,619)Shares withheld for taxes(246)(2)(5,321)16 (296)— — (5,619)— (5,619)
Balance at March 31, 2021Balance at March 31, 202128,606 $286 $251,335 0 $0 $27,828 $(4,369)$275,080 $613 $275,693 Balance at March 31, 202128,606 $286 $251,335  $ $27,828 $(4,369)$275,080 $613 $275,693 
Net incomeNet income— — — — — 20,056 — 20,056 161 20,217 Net income— — — — — 20,056 — 20,056 161 20,217 
Change in interest rate swapChange in interest rate swap— — — — — — 728 728 — 728 Change in interest rate swap— — — — — — 728 728 — 728 
Stock-based compensationStock-based compensation— — 2,015 — — — — 2,015 — 2,015 Stock-based compensation— — 2,015 — — — — 2,015 — 2,015 
Issuance of stockIssuance of stock32 — 120 — — — — 120 — 120 Issuance of stock32 — 120 — — — — 120 — 120 
OtherOther— — (3)— — — — (3)— (3)Other— — (3)— — — — (3)— (3)
Balance at June 30, 2021Balance at June 30, 202128,638 $286 $253,467 0 $0 $47,884 $(3,641)$297,996 $774 $298,770 Balance at June 30, 202128,638 $286 $253,467  $ $47,884 $(3,641)$297,996 $774 $298,770 
Net incomeNet income— — — — — 21,126 — 21,126 631 21,757 
Change in interest rate swapChange in interest rate swap— — — — — — 718 718 — 718 
Stock-based compensationStock-based compensation— — 1,840 — — — — 1,840 — 1,840 
Issuance of stockIssuance of stock148 105 — — — — 107 — 107 
Shares withheld for taxesShares withheld for taxes(4)— (99)— — — — (99)— (99)
Balance at September 30, 2021Balance at September 30, 202128,782 $288 $255,313  $ $69,010 $(2,923)$321,688 $1,405 $323,093 
7


Six Months Ended June 30, 2020Nine Months Ended September 30, 2020
Common StockAdditional Paid in CapitalTreasury StockRetained Earnings (Deficit)Accumulated Other Comprehensive LossTotal Sterling Stockholders’ EquityNon-controlling InterestsTotal Stockholders’ EquityCommon StockAdditional Paid in CapitalTreasury StockRetained Earnings (Deficit)Accumulated Other Comprehensive LossTotal Sterling Stockholders’ EquityNon-controlling InterestsTotal Stockholders’ Equity
SharesAmountSharesAmountSharesAmountSharesAmount
Balance at December 31, 2019Balance at December 31, 201927,772 $283 $251,019 518 $(6,142)$(25,033)$(209)$219,918 $1,293 $221,211 Balance at December 31, 201927,772 $283 $251,019 518 $(6,142)$(25,033)$(209)$219,918 $1,293 $221,211 
Net incomeNet income— — — — — 3,115 — 3,115 100 3,215 Net income— — — — — 3,115 — 3,115 100 3,215 
Change in interest rate swapChange in interest rate swap— — — — — — (7,061)(7,061)— (7,061)Change in interest rate swap— — — — — — (7,061)(7,061)— (7,061)
Stock-based compensationStock-based compensation— — 2,234 — — — — 2,234 — 2,234 Stock-based compensation— — 2,234 — — — — 2,234 — 2,234 
Issuance of stockIssuance of stock248 — (2,460)(248)2,563 — — 103 — 103 Issuance of stock248 — (2,460)(248)2,563 — — 103 — 103 
Shares withheld for taxesShares withheld for taxes(54)— (104)46 (668)— — (772)— (772)Shares withheld for taxes(54)— (104)46 (668)— — (772)— (772)
Balance at March 31, 2020Balance at March 31, 202027,966 $283 $250,689 316 $(4,247)$(21,918)$(7,270)$217,537 $1,393 $218,930 Balance at March 31, 202027,966 $283 $250,689 316 $(4,247)$(21,918)$(7,270)$217,537 $1,393 $218,930 
Net incomeNet income— — — — — 18,210 — 18,210 55 18,265 Net income— — — — — 18,210 — 18,210 55 18,265 
Change in interest rate swapChange in interest rate swap— — — — — — (53)(53)— (53)Change in interest rate swap— — — — — — (53)(53)— (53)
Stock-based compensationStock-based compensation— — 3,962 — — — — 3,962 — 3,962 Stock-based compensation— — 3,962 — — — — 3,962 — 3,962 
Issuance of stockIssuance of stock73 — (740)(73)844 — — 104 — 104 Issuance of stock73 — (740)(73)844 — — 104 — 104 
Shares withheld for taxesShares withheld for taxes(5)— (18)(32)— — (50)— (50)Shares withheld for taxes(5)— (18)(32)— — (50)— (50)
OtherOther— — (73)— — — — (73)— (73)Other— — (73)— — — — (73)— (73)
Balance at June 30, 2020Balance at June 30, 202028,034 $283 $253,820 246 $(3,435)$(3,708)$(7,323)$239,637 $1,448 $241,085 Balance at June 30, 202028,034 $283 $253,820 246 $(3,435)$(3,708)$(7,323)$239,637 $1,448 $241,085 
Net incomeNet income— — — — — 15,157 — 15,157 240 15,397 
Change in interest rate swapChange in interest rate swap— — — — — — 1,010 1,010 — 1,010 
Stock-based compensationStock-based compensation— — 1,765 — — — — 1,765 — 1,765 
Issuance of stockIssuance of stock66 — (714)(66)917 — — 203 — 203 
Shares withheld for taxesShares withheld for taxes(14)— — 14 (133)— — (133)— (133)
OtherOther— — (11)— — — — (11)— (11)
Balance at September 30, 2020Balance at September 30, 202028,086 $283 $254,860 194 $(2,651)$11,449 $(6,313)$257,628 $1,688 $259,316 
The accompanying Notes are an integral part of these Condensed Consolidated Financial Statements.
8


STERLING CONSTRUCTION COMPANY, INC. & SUBSIDIARIES
NOTES TO THE CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
JuneSeptember 30, 2021
($ and share values in thousands, except per share data)
(Unaudited)
1.NATURE OF OPERATIONS
Business Summary
Sterling Construction Company, Inc. (“Sterling,” “the Company,” “we,” “our” or “us”), a Delaware corporation, operates through a variety of subsidiaries within three segments specializing in Heavy Civil, Specialty Services and Residential projects in the United States (the “U.S.”), primarily across the southern U.S., the Rocky Mountain States, California and Hawaii, as well as other areas with strategic construction opportunities. Heavy Civil includes infrastructure and rehabilitation projects for highways, roads, bridges, airfields,airports, ports, light rail, water, wastewater and storm drainage systems. Specialty Services projects include landsite development activities, (including site excavation and drainage, drilling and blasting for excavation), foundations for multi-family homes, parking structures and other commercial concrete projects. Residential projects include concrete foundations for single-family homes. From strategy to operations, we are committed to sustainability by operating responsibly to safeguard and improve society’s quality of life.
2.BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES
Basis of Presentation
Presentation Basis—The accompanying Condensed Consolidated Financial Statements are presented in accordance with accounting policies generally accepted in the United States (“GAAP”) and reflect all wholly owned subsidiaries and those entities the Company is required to consolidate. See Note 4 - Consolidated 50% Owned Subsidiaries and Note 5 - Construction Joint Ventures for further discussion of the Company’s consolidation policy for those entities that are not wholly owned. In the opinion of management, all adjustments, consisting only of normal recurring adjustments, considered necessary for a fair presentation have been included. All significant intercompany accounts and transactions have been eliminated in consolidation. Values presented within tables (excluding per share data) are in thousands. Reclassifications have been made to historical financial data in the Condensed Consolidated Financial Statements to conform to the current year presentation.
Estimates and Judgments—The preparation of the accompanying Condensed Consolidated Financial Statements in conformance with GAAP requires management to make estimates and judgments that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Certain accounting estimates of the Company require a higher degree of judgment than others in their application. These include the recognition of revenue and earnings from construction contracts over time, the valuation of long-lived assets, goodwill and purchase accounting estimates. Management continually evaluates all of its estimates and judgments based on available information and experience; however, actual results could differ from these estimates.
Significant Accounting Policies
Consistent with Regulation S-X Rule 10-1(a), the Company has omitted significant accounting policies in this quarterly report that would duplicate the disclosures contained in the Company’s annual report on Form 10-K for the year ended December 31, 2020 under “Part II, Item 8. - Notes to Consolidated Financial Statements.” This quarterly report should be read in conjunction with the Company’s most recent annual report on Form 10-K.
Accounts Receivable—Receivables are generally based on amounts billed to the customer in accordance with contractual provisions. Receivables are written off based on the individual credit evaluation and specific circumstances of the customer, when such treatment is warranted. The Company performs a review of outstanding receivables, historical collection information and existing economic conditions to determine if there are potential uncollectible receivables. At JuneSeptember 30, 2021 and December 31, 2020, our allowance for our estimate of expected credit losses was 0.zero.
As is customary, we have agreed to indemnify our bonding company for all losses incurred by it in connection with bonds that are issued, and we have granted our bonding company a security interest in certain assets, including accounts receivable, as collateral for such obligations.
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Contracts in Progress—For performance obligations satisfied over time, amounts are billed as work progresses in accordance with agreed-upon contractual terms, either at periodic intervals (e.g., biweekly or monthly) or upon achievement of contractual milestones. Typically, Sterling bills for advances or deposits from its customers before revenue is recognized, resulting in contract liabilities. However, the Company occasionally bills subsequent to revenue recognition, resulting in contract assets.
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Many of the contracts under which the Company performs work also contain retainage provisions. Retainage refers to that portion of our billings held for payment by the customer pending satisfactory completion of the project. Unless reserved, the Company assumes that all amounts retained by customers under such provisions are fully collectible. At JuneSeptember 30, 2021 and December 31, 2020, contract assets included $45,924$42,790 and $44,412 of retainage, respectively, and contract liabilities included $39,682$41,925 and $33,856 of retainage, respectively. Retainage on active contracts is classified as current regardless of the term of the contract and is generally collected within one year of the completion of a contract. We anticipate collecting approximately 68%66% of our JuneSeptember 30, 2021 retainage during the next twelve months. These assets and liabilities are reported on the Condensed Consolidated Balance Sheet within “Contract assets” and “Contract liabilities” on a contract-by-contract basis at the end of each reporting period.
Revenue recognized for the three and sixnine months ended JuneSeptember 30, 2021 that was included in the contract liability balance on December 31, 2020 was $141,813$111,887 and $297,370,$409,257, respectively. Revenue recognized for the three and sixnine months ended JuneSeptember 30, 2020 that was included in the contract liability balance on December 31, 2019 was $132,225$106,072 and $278,491,$384,569, respectively.
Cash and Restricted Cash—Our cash is comprised of highly liquid investments with maturities of three months or less. Restricted cash of $6,411$6,714 and $6,457 is included in “Other current assets” on the Condensed Consolidated Balance Sheets at JuneSeptember 30, 2021 and December 31, 2020, respectively. This primarily represents cash deposited by the Company into separate accounts and designated as collateral for standby letters of credit in the same amount in accordance with contractual agreements.
3.REVENUE FROM CUSTOMERS
BacklogThe following table presents the Company’s backlog, by segment:
June 30,
2021
December 31,
2020
September 30,
2021
December 31,
2020
Heavy Civil BacklogHeavy Civil Backlog$1,183,122 $898,183 Heavy Civil Backlog$1,019,904 $898,183 
Specialty Services BacklogSpecialty Services Backlog387,519 277,205 Specialty Services Backlog391,443 277,205 
Total Heavy Civil and Specialty Services BacklogTotal Heavy Civil and Specialty Services Backlog$1,570,641 $1,175,388 Total Heavy Civil and Specialty Services Backlog$1,411,347 $1,175,388 
The Company expects to recognize approximately 59%64% of its backlog as revenue during the next twelve months, and the balance thereafter.
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Revenue DisaggregationThe following tables present the Company’s revenue disaggregated by major end market and contract type:
Three Months Ended June 30,Six Months Ended June 30,Three Months Ended September 30,Nine Months Ended September 30,
Revenues by major end marketRevenues by major end market2021202020212020Revenues by major end market2021202020212020
Heavy HighwayHeavy Highway$139,189 $152,526 $238,705 $248,900 Heavy Highway$188,746 $148,239 $427,451 $397,139 
AviationAviation36,754 34,867 63,976 63,324 Aviation35,840 20,473 99,816 83,797 
Water Containment and TreatmentWater Containment and Treatment16,208 16,529 30,427 38,338 Water Containment and Treatment11,463 17,751 41,890 56,089 
OtherOther11,002 16,526 17,099 25,501 Other13,849 14,615 30,948 40,116 
Heavy Civil RevenuesHeavy Civil Revenues203,153 220,448 350,207 376,063 Heavy Civil Revenues249,898 201,078 600,105 577,141 
Land Development123,743 105,639 220,315 181,884 
Site DevelopmentSite Development121,286 114,961 341,601 296,845 
CommercialCommercial28,161 30,064 55,677 58,542 Commercial26,970 25,010 82,647 83,552 
Specialty Services RevenuesSpecialty Services Revenues151,904 135,703 275,992 240,426 Specialty Services Revenues148,256 139,971 424,248 380,397 
Residential RevenuesResidential Revenues46,609 43,887 90,783 80,237 Residential Revenues65,295 42,409 156,078 122,646 
Total RevenuesTotal Revenues$401,666 $400,038 $716,982 $696,726 Total Revenues$463,449 $383,458 $1,180,431 $1,080,184 
Revenues by contract typeRevenues by contract typeRevenues by contract type
Fixed-Unit PriceFixed-Unit Price$225,886 $203,692 $403,434 $345,431 Fixed-Unit Price$267,093 $187,692 $670,526 $631,639 
Lump SumLump Sum127,416 147,460 218,571 261,712 Lump Sum129,742 148,463 348,313 301,025 
Residential and OtherResidential and Other48,364 48,886 94,977 89,583 Residential and Other66,614 47,303 161,592 147,520 
Total RevenuesTotal Revenues$401,666 $400,038 $716,982 $696,726 Total Revenues$463,449 $383,458 $1,180,431 $1,080,184 
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Each of these contract types presents advantages and disadvantages. Typically, the Company assumes more risk with lump-sum contracts. However, these types of contracts offer additional profits if the work is completed for less than originally estimated. Under fixed-unit price contracts, the Company’s profit may vary if actual labor-hour costs vary significantly from the negotiated rates. Also, because some contracts can provide little or no fee for managing material costs, the components of contract cost can impact profitability.
Variable Consideration
The Company has projects that it is in the process of negotiating, or awaiting final approval of, unapproved change orders and claims with its customers. The Company is proceeding with its contractual rights to recoup additional costs incurred from its customers based on completing work associated with change orders, including change orders with pending change order pricing, or claims related to significant changes in scope which resulted in substantial delays and additional costs in completing the work. Unapproved change order and claim information has been provided to the Company’s customers and negotiations with the customers are ongoing. If additional progress with an acceptable resolution is not reached, legal action will be taken. Based upon the Company’s review of the provisions of its contracts, specific costs incurred and other related evidence supporting the unapproved change orders and claims, together in some cases as necessary with the views of the Company’s outside claim consultants, the Company concluded it was appropriate to include in project price amounts of $14,300$13,900 and $7,142, at JuneSeptember 30, 2021 and December 31, 2020, respectively, relating to unapproved change orders and claims. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined.
Contract Estimates
Accounting for long-term contracts and programs involves the use of various techniques to estimate total contract revenue and costs. For long-term contracts, the Company estimates the profit on a contract as the difference between the total estimated revenue and expected costs to complete a contract and recognizes such profit over the life of the contract. Contract estimates are based on various assumptions to project the outcome of future events that often span several years. These assumptions include labor productivity and availability, the complexity of the work to be performed, the cost and availability of materials and the performance of subcontractors. Changes in job performance, job conditions and estimated profitability, including those changes arising from contract penalty provisions and final contract settlements may result in revisions to costs and income and are recognized in the period in which the revisions are determined. Changes in contract estimates resulted in a net increasesdecrease of approximately $3,727$354 and $12,032a net increase of $11,678 for the three and sixnine months ended JuneSeptember 30, 2021, respectively, and net increases of approximately $2,197$2,725 and $2,292$5,017 for the three and sixnine months ended JuneSeptember 30, 2020, respectively, included in “Operating income” on the Condensed Consolidated Statements of Operations.
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4.CONSOLIDATED 50% OWNED SUBSIDIARIES
The Company has 50% ownership interests in 2 subsidiaries (“Myers” and “RHB”) that it fully consolidates as a result of its exercise of control over the entities. The earnings attributable to the 50% portions the Company does not own were approximately $4,800$3,300 and $6,600$9,900 for the three and sixnine months ended JuneSeptember 30, 2021, respectively, and $4,600$2,600 and $6,300$8,900 for the three and sixnine months ended JuneSeptember 30, 2020, respectively, and are eliminated within “Other operating expense, net” in the Condensed Consolidated Statements of Operations. Any undistributed earnings for partners are included in “Members’ interest subject to mandatory redemption and undistributed earnings” within the Condensed Consolidated Balance Sheets and are mandatorily payable at the time of the noncontrolling owners’ death or permanent disability.
These two subsidiaries have individual mandatory redemption provisions which, under circumstances outlined in the partner agreements, are certain to occur and obligate the Company to purchase each partner’s remaining 50% interests for $20,000 ($40,000 in the aggregate). The Company has purchased 2 separate $20,000 death and permanent total disability insurance policies to mitigate the Company’s cash draw if such events were to occur. These purchase obligations are also recorded in “Members’ interest subject to mandatory redemption and undistributed earnings” on the Condensed Consolidated Balance Sheets.
The liability consists of the following:
June 30,
2021
December 31,
2020
September 30,
2021
December 31,
2020
Members’ interest subject to mandatory redemptionMembers’ interest subject to mandatory redemption$40,000 $40,000 Members’ interest subject to mandatory redemption$40,000 $40,000 
Net accumulated earningsNet accumulated earnings16,488 11,290 Net accumulated earnings14,766 11,290 
Total liabilityTotal liability$56,488 $51,290 Total liability$54,766 $51,290 
The Company must determine whether any of its entities, including these 2 50% owned subsidiaries, in which it participates, is a VIE. The Company determined that Myers is a VIE and that the Company is the primary beneficiary because,
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pursuant to the terms of the Myers Operating Agreement, the Company is exposed to the majority of potential losses of the partnership.
Summary financial information for Myers is as follows:
Three Months Ended June 30,Six Months Ended June 30,Three Months Ended September 30,Nine Months Ended September 30,
20212020202120202021202020212020
RevenuesRevenues$43,137 $54,364 $71,094 $98,726 Revenues$50,338 $57,566 $121,432 $156,292 
Operating incomeOperating income$747 $1,049 $1,465 $1,204 Operating income$808 $1,889 $2,273 $3,093 
Net incomeNet income$366 $526 $717 $605 Net income$1,379 $932 $2,096 $1,537 
5.CONSTRUCTION JOINT VENTURES
Joint Ventures with a Controlling Interest—We consolidate any venture that is determined to be a VIE for which we are the primary beneficiary, or which we otherwise effectively control. The equity held by the remaining owners and their portions of net income (loss) are reflected in stockholders’ equity on the Condensed Consolidated Balance Sheets line item “Noncontrolling interests” and in the Condensed Consolidated Statements of Operations line item “Net income attributable to noncontrolling interests,” respectively. The Company determined that a joint venture in which the Company’s Ralph L. Wadsworth Construction subsidiary is a 51% owner is a VIE and the Company is the primary beneficiary. Summary financial information for this construction joint venture is as follows:
Three Months Ended June 30,Six Months Ended June 30,
2021202020212020
Revenues$9,325 $3,404 $17,566 $7,468 
Operating income$613 $375 $3,140 $671 
Net income$615 $376 $3,143 $675 
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Three Months Ended September 30,Nine Months Ended September 30,
2021202020212020
Revenues$19,846 $4,266 $37,412 $11,734 
Operating income$1,290 $290 $4,430 $961 
Net income$1,292 $292 $4,435 $967 
Joint Ventures with a Noncontrolling Interest—The Company accounts for unconsolidated joint ventures using a pro-rata basis in the Condensed Consolidated Statements of Operations and as a single line item (“Receivables from and equity in construction joint ventures”) in the Condensed Consolidated Balance Sheets. This method is a permissible modification of the equity method of accounting which is a common practice in the construction industry. Combined financial amounts of joint ventures in which the Company has a noncontrolling interest and the Company’s share of such amounts which are included in the Company’s Condensed Consolidated Financial Statements are shown below:
June 30,
2021
December 31,
2020
September 30,
2021
December 31,
2020
Current assetsCurrent assets$138,804 $143,608 Current assets$156,479 $143,608 
Current liabilitiesCurrent liabilities$(95,350)$(141,295)Current liabilities$(103,754)$(141,295)
Sterling’s receivables from and equity in construction joint venturesSterling’s receivables from and equity in construction joint ventures$18,011 $16,653 Sterling’s receivables from and equity in construction joint ventures$21,656 $16,653 
Three Months Ended June 30,Six Months Ended June 30,Three Months Ended September 30,Nine Months Ended September 30,
20212020202120202021202020212020
RevenuesRevenues$62,489 $43,466 $111,906 $70,312 Revenues$69,116 $58,541 $181,022 $128,853 
Income before taxIncome before tax$8,780 $4,516 $13,415 $6,673 Income before tax$9,311 $7,814 $22,726 $14,487 
Sterling’s noncontrolling interest:Sterling’s noncontrolling interest:Sterling’s noncontrolling interest:
RevenuesRevenues$26,994 $19,377 $48,938 $32,459 Revenues$30,326 $26,195 $79,264 $58,653 
Income before taxIncome before tax$3,676 $1,968 $5,811 $3,017 Income before tax$4,149 $3,541 $9,959 $6,559 
The caption “Receivables from and equity in construction joint ventures” includes undistributed earnings and receivables owed to the Company. Undistributed earnings are typically released to the joint venture partners after the customer accepts the project as completed and the warranty period, if any, has passed.
Other—The use of joint ventures exposes us to a number of risks, including the risk that our partners may be unable or unwilling to provide their share of capital investment to fund the operations of the venture or complete their obligations to us, the venture, or ultimately, the customer. Differences in opinions or views among joint venture partners could also result in delayed decision-making or failure to agree on material issues, which could adversely affect the business and operations of the joint venture. In addition, agreement terms may subject us to joint and several liability for our venture partners, and the failure of our venture partners to perform their obligations could impose additional performance and financial obligations on us. The
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aforementioned factors could result in unanticipated costs to complete the projects, liquidated damages or contract disputes, including claims against our partners.
6.PROPERTY AND EQUIPMENT
Property and equipment are summarized as follows:
June 30,
2021
December 31,
2020
September 30,
2021
December 31,
2020
Construction and transportation equipmentConstruction and transportation equipment$252,797 $231,799 Construction and transportation equipment$256,444 $231,799 
Buildings and improvementsBuildings and improvements22,493 21,025 Buildings and improvements23,110 21,025 
LandLand3,891 3,891 Land3,891 3,891 
Office equipmentOffice equipment3,046 3,012 Office equipment3,147 3,012 
Total property and equipmentTotal property and equipment282,227 259,727 Total property and equipment286,592 259,727 
Less accumulated depreciationLess accumulated depreciation(140,212)(133,059)Less accumulated depreciation(138,148)(133,059)
Total property and equipment, netTotal property and equipment, net$142,015 $126,668 Total property and equipment, net$148,444 $126,668 
Depreciation Expense—Depreciation expense is primarily included within cost of revenues and was $5,536$5,763 and $10,975$16,738 for the three and sixnine months ended JuneSeptember 30, 2021, respectively, and $5,390$5,232 and $10,838$16,070 for the three and sixnine months ended JuneSeptember 30, 2020, respectively.
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7.OTHER INTANGIBLE ASSETS
The following table presents our acquired finite-lived intangible assets, including the weighted-average useful lives for each major intangible asset category and in total:
June 30, 2021December 31, 2020September 30, 2021December 31, 2020
Weighted
Average
Life (Years)
Gross
Carrying
Amount
Accumulated
Amortization
Gross
Carrying
Amount
Accumulated
Amortization
Weighted
Average
Life (Years)
Gross
Carrying
Amount
Accumulated
Amortization
Gross
Carrying
Amount
Accumulated
Amortization
Customer relationshipsCustomer relationships25$232,623 $(21,099)$232,623 $(16,360)Customer relationships25$232,623 $(23,469)$232,623 $(16,360)
Trade nameTrade name2330,107 (3,967)30,107 (3,209)Trade name2330,107 (4,346)30,107 (3,209)
Non-compete agreementsNon-compete agreements52,487 (996)2,487 (761)Non-compete agreements52,487 (1,113)2,487 (761)
TotalTotal24$265,217 $(26,062)$265,217 $(20,330)Total24$265,217 $(28,928)$265,217 $(20,330)
    The Company'sCompany’s intangible amortization expense was $2,866 and $5,732$8,598 for the three and sixnine months ended JuneSeptember 30, 2021, respectively, and $2,866 and $5,703$8,569 for the three and sixnine months ended JuneSeptember 30, 2020, respectively.
8.DEBT
The Company’s outstanding debt was as follows:
June 30,
2021
December 31,
2020
September 30,
2021
December 31,
2020
Term Loan FacilityTerm Loan Facility$315,000 $355,000 Term Loan Facility$310,944 $355,000 
Revolving Credit FacilityRevolving Credit FacilityRevolving Credit Facility— — 
Credit FacilityCredit Facility315,000 355,000 Credit Facility310,944 355,000 
Other debtOther debt17,335 20,397 Other debt15,342 20,397 
Total debtTotal debt332,335 375,397 Total debt326,286 375,397 
Less - Current maturities of long-term debtLess - Current maturities of long-term debt(23,186)(77,434)Less - Current maturities of long-term debt(21,239)(77,434)
Less - Unamortized debt issuance costsLess - Unamortized debt issuance costs(5,618)(6,714)Less - Unamortized debt issuance costs(5,124)(6,714)
Total long-term debtTotal long-term debt$303,531 $291,249 Total long-term debt$299,923 $291,249 
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Credit Facility—Our amended credit agreement (the “Credit Agreement”) provides the Company with senior secured debt financing in an amount up to $475,000 in the aggregate, consisting of (i) a senior secured first lien term loan facility (the “Term Loan Facility”) in the amount of $400,000 (collectively, the “Credit Facility”) and (ii) a senior secured first lien revolving credit facility (the “Revolving Credit Facility”) in an aggregate principal amount of $75,000 (with a $75,000 limit for the issuance of letters of credit and a $15,000 sublimit for swing line loans). The obligations under the Credit Facility are secured by substantially all assets of the Company and the subsidiary guarantors, subject to certain permitted liens and interests of other parties. The Credit Facility will mature on October 2, 2024.
On June 28, 2021, the Credit Agreement was further amended to (i) decrease the applicable margins with respect to the rates per annum applicable to Base Rate Loans (as defined in the Credit Agreement), Eurodollar Loans (as defined in the Credit Agreement), Letter of Credit (as defined in the Credit Agreement) fees and the commitment fee payable under the Revolving Credit Facility and Term Loan Facility; (ii) reduce the applicable percentages of excess cash flow required for application to mandatory prepayments of the Credit Facility; and (iii) decrease the amounts of the scheduled quarterly principal payments due under the Term Loan Facility.
The Term Loan Facility bears interest at either the base rate plus a margin, or at a one-, two-, three-, six- or, if available, twelve-month LIBOR rate plus a margin, at the Company’s election. At JuneSeptember 30, 2021, the Company calculated interest using a one-month LIBOR rate and an applicable margin of 0.095%0.084% and 2.50% per annum, respectively. We continue to utilize an interest rate swap to hedge against $275,000 of the outstanding Term Loan Facility, which resulted in a weighted average interest rate of approximately 5.49%5.15% per annum during the sixnine months ended JuneSeptember 30, 2021. Scheduled principal payments on the Term Loan Facility are made quarterly and total $24,700, $16,200, $22,300 and $18,300 for each of the years ending 2021, 2022, 2023 and 2024, respectively. The Company is required to make mandatory prepayments on the Credit Facility with proceeds received from issuances of debt, events of loss and certain dispositions. The Company also is required to prepay the Credit Facility with its excess cash flow within 5 days after receipt of its annual audited financial statements. For the sixnine months ended JuneSeptember 30, 2021, the companyCompany made scheduled term loan payments of $16,556,$20,612, an excess cash flow payment of $18,000
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and an optional prepayment of $5,444. A final payment of all principal and interest then outstanding on the Term Loan Facility is due on October 2, 2024.
The Revolving Credit Facility bears interest at the same rate options as the Term Loan Facility. In addition to interest on debt borrowings, we are assessed quarterly commitment fees on the unutilized portion of the facility as well as letter of credit fees on outstanding instruments. At JuneSeptember 30, 2021, we had 0no outstanding borrowings under the $75,000 Revolving Credit Facility, providing $75,000 of available capacity.Facility.
Debt Issuance Costs—The costs associated with the Term Loan Facility and Revolving Credit Facility are reflected on the Condensed Consolidated Balance Sheets as a direct reduction from the related debt liability and amortized over the terms of the respective facilities. Amortization of debt issuance costs was $604$492 and $1,264$1,756 for the three and sixnine months ended JuneSeptember 30, 2021, respectively, and $740$727 and $1,492$2,219 for the three and sixnine months ended JuneSeptember 30, 2020, respectively, and was recorded as interest expense. Additionally, due to early payments of $18,000 and $5,444 on the Term Loan Facility in the first and second quarters of 2021, respectively, we recorded losses on debt extinguishment of $94$0 and $431 for the three and sixnine months ended JuneSeptember 30, 2020,2021, respectively, related to debt issuance costs.
Other Debt—During the second quarter of 2020, the Company’s 2 50% owned subsidiaries received 3 short-term Paycheck Protection Program loans (the “PPP Loans”) totaling approximately $9,800. During the secondthird quarter of 2021, the Small Business Administration (“SBA”) forgave 1 of the PPP Loans of approximately $3,000,$2,000, of which the Company recorded a gain on debt extinguishment of $1,495$968 for its 50% portion of the gain. For the nine months ended September 30, 2021, the SBA forgave 2 of the PPP Loans totaling approximately $5,000, of which the Company recorded a gain on debt extinguishment of $2,463 for its 50% portion of the gain. The remaining 2 PPP Loans areLoan is classified as short-term debt under “Current Liabilities” on the Consolidated Balance Sheets at JuneSeptember 30, 2021, as we expect to receive a forgiveness determination by the SBA within the next twelvesix months.
Compliance and Other—The Credit Agreement contains various affirmative and negative covenants that may, subject to certain exceptions, restrict the ability of us and our subsidiaries to, among other things, grant liens, incur additional indebtedness, make loans, advances or other investments, make non-ordinary course asset sales, declare or pay dividends or make other distributions with respect to equity interests, purchase, redeem or otherwise acquire or retire capital stock or other equity interests, or merge or consolidate with any other person, among various other things. In addition, the Company is required to maintain certain financial covenants. As of JuneSeptember 30, 2021, we were in compliance with all of our restrictive and financial covenants. The Company’s debt is recorded at its carrying amount in the Condensed Consolidated Balance Sheets. At JuneSeptember 30, 2021 and December 31, 2020, the carrying values of our debt outstanding approximated the fair values.
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9.FINANCIAL INSTRUMENTS
    Interest Rate Derivative—We continue to utilize a swap arrangement to hedge against interest rate variability associated with $275,000 of the $315,000$310,944 outstanding under the Term Loan Facility. The Company has designated its interest rate swap agreement as a cash flow hedging derivative. To the extent the derivative instrument is effective and the documentation requirements have been met, changes in fair value are recognized in other comprehensive income (loss) (“OCI”) until the underlying hedged item is recognized in earnings. At JuneSeptember 30, 2021, the fair value of the swap recorded in accumulated other comprehensive income (loss) (“AOCI”) was a net loss of $4,719.$3,790.
Derivatives Disclosures
    Fair Value—Financial instruments are required to be categorized within a valuation hierarchy based upon the lowest level of input that is significant to the fair value measurement. The three levels of the valuation hierarchy are as follows:
Level 1—Fair value is based on quoted prices in active markets.
Level 2—Fair value is based on internally developed models that use, as their basis, readily observable market parameters. Our derivative positions are classified within level 2 of the valuation hierarchy as they are valued using quoted market prices for similar assets and liabilities in active markets. These level 2 derivatives are valued utilizing an income approach, which discounts future cash flow based on current market expectations and adjusts for credit risk.
Level 3—Fair value is based on internally developed models that use, as their basis, significant unobservable market parameters. The Company did not have any level 3 classifications at JuneSeptember 30, 2021 or December 31, 2020.
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    The following table presents the fair value of the interest rate derivative by valuation hierarchy and balance sheet classification:
June 30, 2021December 31, 2020September 30, 2021December 31, 2020
Level 1Level 2Level 3TotalLevel 1Level 2Level 3TotalLevel 1Level 2Level 3TotalLevel 1Level 2Level 3Total
Other current liabilitiesOther current liabilities$$(3,794)$$(3,794)$$(4,427)$$(4,427)Other current liabilities$— $(3,529)$— $(3,529)$— $(4,427)$— $(4,427)
Other non-current liabilitiesOther non-current liabilities(1,108)(1,108)(2,629)(2,629)Other non-current liabilities— (455)— (455)— (2,629)— (2,629)
Total liabilities at fair valueTotal liabilities at fair value$$(4,902)$$(4,902)$$(7,056)$$(7,056)Total liabilities at fair value$— $(3,984)$— $(3,984)$— $(7,056)$— $(7,056)
    OCI—The following table presents the total value recognized in OCI and reclassified from AOCI into earnings during the three and sixnine months ended JuneSeptember 30, 2021 and 2020 for derivatives designated as cash flow hedges:
Three Months EndedNine Months Ended
Three Months Ended June 30, 2021Six Months Ended June 30, 2021September 30, 2021September 30, 2021
Before TaxTaxNet of TaxBefore TaxTaxNet of TaxBefore TaxTaxNet of TaxBefore TaxTaxNet of Tax
Net gain (loss) recognized in OCINet gain (loss) recognized in OCI$(82)$19 $(63)$44 $(10)$34 Net gain (loss) recognized in OCI$(111)$25 $(86)$(67)$15 $(52)
Net amount reclassified from AOCI into earnings(1)
Net amount reclassified from AOCI into earnings(1)
1,024 (233)791 2,058 (469)1,589 
Net amount reclassified from AOCI into earnings(1)
1,041 (237)804 3,099 (706)2,393 
Change in other comprehensive incomeChange in other comprehensive income$942 $(214)$728 $2,102 $(479)$1,623 Change in other comprehensive income$930 $(212)$718 $3,032 $(691)$2,341 
Three Months EndedNine Months Ended
Three Months Ended June 30, 2020Six Months Ended June 30, 2020September 30, 2020September 30, 2020
Before TaxTaxNet of TaxBefore TaxTaxNet of TaxBefore TaxTaxNet of TaxBefore TaxTaxNet of Tax
Net gain (loss) recognized in OCINet gain (loss) recognized in OCI$(1,031)$232 $(799)$(10,205)$2,296 $(7,909)Net gain (loss) recognized in OCI$50 $(11)$39 $(10,155)$2,285 $(7,870)
Net amount reclassified from AOCI into earningsNet amount reclassified from AOCI into earnings963 (217)746 1,026 (231)795 Net amount reclassified from AOCI into earnings1,253 (282)971 2,279 (513)1,766 
Change in other comprehensive incomeChange in other comprehensive income$(68)$15 $(53)$(9,179)$2,065 $(7,114)Change in other comprehensive income$1,303 $(293)$1,010 $(7,876)$1,772 $(6,104)
(1) Net unrealized losses totaling $3,611$3,335 are anticipated to be reclassified from AOCI into earnings during the next 12 months due to settlement of the associated underlying obligations.
10.LEASE OBLIGATIONS
    The Company has operating and finance leases primarily for construction and transportation equipment, as well as office space. The Company’s leases have remaining lease terms of one month to seven years, some of which include options to extend the leases for up to ten years.
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    The components of lease expense are as follows:
Three Months Ended June 30,Six Months Ended June 30,
2021202020212020
Operating lease cost$1,510 $2,075 $3,022 $4,234 
Short-term lease cost$2,911 $3,745 $5,035 $7,026 
Finance lease cost:
Amortization of right-of-use assets$46 $49 $96 $105 
Interest on lease liabilities11 15 
Total finance lease cost$51 $56 $107 $120 
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Three Months Ended September 30,Nine Months Ended September 30,
2021202020212020
Operating lease cost$1,672 $2,187 $4,694 $6,421 
Short-term lease cost$3,813 $3,311 $8,848 $10,337 
Finance lease cost:
Amortization of right-of-use assets$46 $49 $151 $154 
Interest on lease liabilities16 22 
Total finance lease cost$51 $56 $167 $176 
    Supplemental cash flow information related to leases is as follows:
Six Months Ended June 30,Nine Months Ended September 30,
2021202020212020
Cash paid for amounts included in the measurement of lease liabilities:Cash paid for amounts included in the measurement of lease liabilities:Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leasesOperating cash flows from operating leases$2,980 $4,336 Operating cash flows from operating leases$4,627 $6,281 
Operating cash flows from finance leasesOperating cash flows from finance leases$11 $15 Operating cash flows from finance leases$16 $22 
Financing cash flows from finance leasesFinancing cash flows from finance leases$96 $105 Financing cash flows from finance leases$151 $154 
Right-of-use assets obtained in exchange for lease obligations (noncash):
Right-of-use assets obtained in exchange for lease obligations (non-cash):Right-of-use assets obtained in exchange for lease obligations (non-cash):
Operating leasesOperating leases$3,496 $5,633 Operating leases$6,221 $7,679 
Finance leasesFinance leases$$Finance leases$— $— 
    Supplemental balance sheet information related to leases is as follows:
June 30,
2021
December 31,
2020
September 30,
2021
December 31,
2020
Operating LeasesOperating LeasesOperating Leases
Operating lease right-of-use assetsOperating lease right-of-use assets$16,609 $16,515 Operating lease right-of-use assets$17,470 $16,515 
Current portion of long-term lease obligationsCurrent portion of long-term lease obligations$7,942 $7,588 Current portion of long-term lease obligations$8,314 $7,588 
Long-term lease obligationsLong-term lease obligations8,783 8,958 Long-term lease obligations9,306 8,958 
Total operating lease liabilitiesTotal operating lease liabilities$16,725 $16,546 Total operating lease liabilities$17,620 $16,546 
Finance LeasesFinance LeasesFinance Leases
Property and equipment, at costProperty and equipment, at cost$1,479 $1,479 Property and equipment, at cost$1,479 $1,479 
Accumulated depreciationAccumulated depreciation(806)(702)Accumulated depreciation(857)(702)
Property and equipment, netProperty and equipment, net$673 $777 Property and equipment, net$622 $777 
Current maturities of long-term debtCurrent maturities of long-term debt$168 $188 Current maturities of long-term debt$157 $188 
Long-term debtLong-term debt295 372 Long-term debt260 372 
Total finance lease liabilitiesTotal finance lease liabilities$463 $560 Total finance lease liabilities$417 $560 
Weighted Average Remaining Lease TermWeighted Average Remaining Lease TermWeighted Average Remaining Lease Term
Operating leasesOperating leases3.43.2Operating leases3.43.2
Finance leasesFinance leases2.93.2Finance leases2.73.2
Weighted Average Discount RateWeighted Average Discount RateWeighted Average Discount Rate
Operating leasesOperating leases5.5 %5.7 %Operating leases5.4 %5.7 %
Finance leasesFinance leases4.2 %4.2 %Finance leases4.2 %4.2 %
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    Maturities of lease liabilities are as follows:
Operating
Leases
Finance
Leases
Operating
Leases
Finance
Leases
Year Ending December 31,Year Ending December 31,Year Ending December 31,
2021 (excluding the six months ended June 30, 2021)$3,715 $101 
2021 (excluding the nine months ended September 30, 2021)2021 (excluding the nine months ended September 30, 2021)$1,742 $49 
202220226,510 161 20227,377 161 
202320233,866 154 20234,773 155 
202420241,820 77 20242,558 77 
202520251,002 20251,293 — 
20262026928 20261,005 — 
ThereafterThereafter628 Thereafter629 — 
Total lease paymentsTotal lease payments$18,469 $493 Total lease payments$19,377 $442 
Less imputed interestLess imputed interest(1,744)(30)Less imputed interest(1,757)(25)
TotalTotal$16,725 $463 Total$17,620 $417 
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11.COMMITMENTS AND CONTINGENCIES
The Company is required by its insurance providers to obtain and hold standby letters of credit. These letters of credit serve as a guarantee by the banking institution to pay the Company’s insurance providers the incurred claim costs attributable to its general liability, workers compensation and automobile liability claims, up to the amount stated in the standby letters of credit, in the event that these claims were not paid by the Company. These letters of credit are cash collateralized, resulting in the cash being designated as restricted.
The Company, including its construction joint ventures and its consolidated 50% owned subsidiaries, is now and may in the future be involved as a party to various legal proceedings that are incidental to the ordinary course of business. Management, after consultation with legal counsel, does not believe that the outcome of these actions will have a material impact on the Condensed Consolidated Financial Statements of the Company.
12.INCOME TAXES
The Company and its subsidiaries are based in the U.S. and file federal and various state income tax returns. The components of the provision for income taxes were as follows:
Three Months Ended June 30,Six Months Ended June 30,Three Months Ended September 30,Nine Months Ended September 30,
20212020202120202021202020212020
Current tax expenseCurrent tax expense$1,027 $1,938 $1,645 $2,209 Current tax expense$1,216 $1,557 $2,862 $3,766 
Deferred tax expenseDeferred tax expense7,152 5,310 11,294 6,223 Deferred tax expense6,120 4,723 17,413 10,946 
Income tax expenseIncome tax expense$8,179 $7,248 $12,939 $8,432 Income tax expense$7,336 $6,280 $20,275 $14,712 
Cash paid for income taxesCash paid for income taxes$1,700 $$1,700 $44 Cash paid for income taxes$485 $2,900 $2,167 $2,944 
The 2021 effective income tax rate varied from the statutory rate primarily as a result of state income taxes, nondeductible compensation and other permanent differences.
Due to net operating loss carryforwards, the Company expects no cash payments for federal income taxes for 2021 or 2020. The Company makes cash payments for state income taxes in states in which the Company does not have net operating loss carry forwards.
At December 31, 2020 the Company had federal and state net operating loss (“NOL”) carryforwards of $58,719 and $36,381, respectively, which expire at various dates in the next 18 years for U.S. federal income tax and in the next 7 to 18 years for the various state jurisdictions where we operate. Such NOL carryforwards expire beginning in 2028 through 2039.
As a result of the Company’s analysis, management has determined that the Company does not have any material uncertain tax positions.
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13.STOCK INCENTIVE PLAN AND OTHER EQUITY ACTIVITY
General—The Company has a stock incentive plan (the “Stock Incentive Plan”) and an employee stock purchase plan (the “ESPP”) that are administered by the Compensation and Talent Development Committee of the Board of Directors. Under the Stock Incentive Plan, the Company can issue shares to employees and directors in the form of restricted stock awards (“RSAs”), restricted stock units (“RSUs”) and performance share units (“PSUs”). Changes in common stock, additional paid in capital and treasury stock during the sixnine months ended JuneSeptember 30, 2021 primarily relate to activity associated with the Stock Incentive Plan, the ESPP and shares withheld for taxes.
Share Grants—During the sixnine months ended JuneSeptember 30, 2021, the Company granted the following awards under the Stock Incentive Plan:
SharesWeighted Average Grant-Date Fair Value per Share
RSAs26 $23.22 
RSUs108 $20.55 
PSUs (at target)139 $20.54 
Total shares granted273 
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SharesWeighted Average Grant-Date Fair Value per Share
RSAs29 $23.19 
RSUs108 $20.55 
PSUs (at target)139 $20.54 
Total shares granted276 
Share Issuances—During the sixnine months ended JuneSeptember 30, 2021, the Company issued the following shares under the Stock Incentive Plan and the ESPP:
Shares
RSAs (issued upon grant)2629 
RSUs (issued upon vesting)4055 
PSUs (issued upon vesting)621 
ESPP (issued upon sale)1318 
Total shares issued700723 
Stock-Based Compensation Expense—During the three and sixnine months ended JuneSeptember 30, 2021, the Company recognized $2,015$1,840 and $3,850,$5,690, respectively, of stock-based compensation expense, and during the three and sixnine months ended JuneSeptember 30, 2020, the Company recognized $3,962$1,765 and $6,196$7,961 of stock-based compensation expense, respectively, primarily within general and administrative expenses. The Company recognizes forfeitures as they occur, rather than estimating expected forfeitures. Included within total stock-based compensation expense for the three and sixnine months ended JuneSeptember 30, 2021 is $22$19 and $47,$66, respectively, of expense related to the ESPP, and during the three and sixnine months ended JuneSeptember 30, 2020, the Company recognized $18 and $36,$54, respectively, of expense related to the ESPP.
Shares Withheld for Taxes—The Company withheld 04 and 246250 shares for taxes on RSU/PSU stock-based compensation vestings for $0$99 and $5,619$5,718 during the three and sixnine months ended JuneSeptember 30, 2021, respectively.
AOCI—During the three and sixnine months ended JuneSeptember 30, 2021, changes in AOCI were a result of net gains (losses) recognized in OCI and amounts reclassified from AOCI into earnings related to our interest rate derivative. See Note 9 - Financial Instruments for further discussion.
Warrants—During the three and nine months ended September 30, 2021, certain holders of warrants elected the cashless exercise option and the Company issued 125 common shares on the exercise of 230 warrants with a market value of $2,812.
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14.EARNINGS PER SHARE
The following table reconciles the numerators and denominators of the basic and diluted earnings per share computations for the three and sixnine months ended JuneSeptember 30, 2021 and 2020:
Three Months Ended June 30,Six Months Ended June 30,Three Months Ended September 30,Nine Months Ended September 30,
20212020202120202021202020212020
Numerator:Numerator:Numerator:
Net income attributable to Sterling common stockholdersNet income attributable to Sterling common stockholders$20,056 $18,210 $30,611 $21,325 Net income attributable to Sterling common stockholders$21,126 $15,157 $51,737 $36,482 
Denominator:Denominator:Denominator:
Weighted average common shares outstanding — basicWeighted average common shares outstanding — basic28,582 27,941 28,433 27,794 Weighted average common shares outstanding — basic28,710 28,003 28,527 27,832 
Shares for dilutive unvested stock and warrantsShares for dilutive unvested stock and warrants472 16 445 93 Shares for dilutive unvested stock and warrants503 230 400 154 
Weighted average common shares outstanding — dilutedWeighted average common shares outstanding — diluted29,054 27,957 28,878 27,887 Weighted average common shares outstanding — diluted29,213 28,233 28,927 27,986 
Basic net income per share attributable to Sterling common stockholdersBasic net income per share attributable to Sterling common stockholders$0.70 $0.65 $1.08 $0.77 Basic net income per share attributable to Sterling common stockholders$0.74 $0.54 $1.81 $1.31 
Diluted net income per share attributable to Sterling common stockholdersDiluted net income per share attributable to Sterling common stockholders$0.69 $0.65 $1.06 $0.76 Diluted net income per share attributable to Sterling common stockholders$0.72 $0.54 $1.79 $1.30 
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15.SUPPLEMENTAL CASH FLOW INFORMATION
    Operating Assets and Liabilities—The following table summarizes the changes in the components of operating assets and liabilities:
Six Months Ended June 30,Nine Months Ended September 30,
2021202020212020
Accounts receivableAccounts receivable$(34,105)$(27,713)Accounts receivable$(41,259)$(24,153)
Contracts in progress, netContracts in progress, net26,008 22,964 Contracts in progress, net26,694 30,278 
Receivables from and equity in construction joint venturesReceivables from and equity in construction joint ventures(1,358)(3,200)Receivables from and equity in construction joint ventures(5,003)(4,606)
Other current and non-current assetsOther current and non-current assets(8,448)(306)Other current and non-current assets(6,630)(1,314)
Accounts payableAccounts payable38,308 (6,495)Accounts payable47,423 (10,257)
Accrued compensation and other liabilitiesAccrued compensation and other liabilities3,936 10,453 Accrued compensation and other liabilities12,916 18,391 
Members' interest subject to mandatory redemption and undistributed earningsMembers' interest subject to mandatory redemption and undistributed earnings3,703 4,748 Members' interest subject to mandatory redemption and undistributed earnings1,013 1,795 
Changes in operating assets and liabilitiesChanges in operating assets and liabilities$28,044 $451 Changes in operating assets and liabilities$35,154 $10,134 
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16.SEGMENT INFORMATION
The Company’s internal and public segment reporting are aligned based upon the services offered by its operating segments. The Company’s operations consist of 3 reportable segments: Heavy Civil, Specialty Services and Residential. The Company’s Chief Operating Decision Maker evaluates the performance of the operating segment based upon revenue and income from operations. Each segment’s income from operations reflects corporate costs, allocated based primarily upon revenue.
The following table presents total revenue and income from operations by reportable segment for the three and sixnine months ended JuneSeptember 30, 2021 and 2020:
Three Months Ended June 30,Six Months Ended June 30,Three Months Ended September 30,Nine Months Ended September 30,
20212020202120202021202020212020
RevenuesRevenuesRevenues
Heavy CivilHeavy Civil$203,153 $220,448 $350,207 $376,063 Heavy Civil$249,898 $201,078 $600,105 $577,141 
Specialty ServicesSpecialty Services151,904 135,703 275,992 240,426 Specialty Services148,256 139,971 424,248 380,397 
ResidentialResidential46,609 43,887 90,783 80,237 Residential65,295 42,409 156,078 122,646 
Total RevenuesTotal Revenues$401,666 $400,038 $716,982 $696,726 Total Revenues$463,449 $383,458 $1,180,431 $1,080,184 
    
Operating IncomeOperating IncomeOperating Income
Heavy CivilHeavy Civil$4,404 $3,896 $5,494 $274 Heavy Civil$7,174 $2,405 $12,668 $2,679 
Specialty ServicesSpecialty Services22,907 23,246 39,084 34,360 Specialty Services17,932 21,474 57,016 55,834 
ResidentialResidential5,409 6,043 10,897 11,127 Residential6,925 5,353 17,822 16,480 
SubtotalSubtotal32,720 33,185 55,475 45,761 Subtotal32,031 29,232 87,506 74,993 
Acquisition related costsAcquisition related costs(139)(612)Acquisition related costs— (401)— (1,013)
Total Operating IncomeTotal Operating Income$32,720 $33,046 $55,475 $45,149 Total Operating Income$32,031 $28,831 $87,506 $73,980 
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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations
Cautionary Statement Regarding Forward-Looking Statements
This quarterly report on Form 10-Q (“Report”) contains statements that are, or may be considered to be, “forward-looking statements” regarding the Company which represent our expectations and beliefs concerning future events. These forward-looking statements are intended to be covered by the safe harbor for forward-looking statements provided by the Private Securities Litigation Reform Act of 1995 as set forth in Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act. The forward-looking statements included herein relate to matters that are predictive in nature, such as our industry outlook, business strategy, goals and expectations concerning our market position, future operations, margins, profitability, capital expenditures, liquidity and capital resources and other financial and operating information, and may use or contain words such as “anticipate,” “assume,” “believe,” “budget,” “continue,” “could,” “estimate,” “expect,” “forecast,” “future,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “will,” “would” and similar terms and phrases.
Forward-looking statements reflect our current expectations as of the date of this Report regarding future events, results or outcomes. These expectations may or may not be realized. Some of these expectations may be based upon assumptions or judgments that prove to be incorrect. In addition, our business and operations involve numerous risks and uncertainties, many of which are beyond our control, that could result in our expectations not being realized or otherwise could materially affect our financial condition, results of operations and cash flows.
Actual events, results and outcomes may differ materially from those anticipated, projected or assumed in the forward-looking statements due to a variety of factors. Although it is not possible to identify all of these factors, they include, among others, the following:
potential risks and uncertainties relating to the ongoing COVID-19 pandemic, including the duration of the COVID-19 pandemic (including new and emerging strains and variants), additional actions that may be taken by governmental authorities to contain the COVID-19 pandemic or to address its impact, including the distribution, effectiveness and acceptance of vaccines, and the imposition of any proposed vaccine mandates or testing requirements, and the potential ongoing or further negative impact of the COVID-19 pandemic on the global economy and financial markets;U.S. economy;
factors that affect the accuracy of estimates inherent in the bidding for contracts, estimates of backlog, and over time revenue recognition accounting policies, including onsite conditions that differ materially from those assumed in the original bid, contract modifications, mechanical problems with machinery or equipment and effects of other risks referenced below;
actions of suppliers, subcontractors, design engineers, joint venture partners, customers, competitors, banks, surety companies and others which are beyond our control, including suppliers’, subcontractors’ and joint venture partners’ failure to perform;
cost escalations associated with our contracts, including changes in availability, proximity and cost of materials such as steel, cement, concrete, aggregates, oil, fuel and other construction materials, including changes in U.S. trade policies and retaliatory responses from other countries, and cost escalations associated with subcontractors and labor;
changes in costs to lease, acquire or maintain our equipment;
our dependence on a limited number of significant customers;
the presence of competitors with greater financial resources or lower margin requirements than ours, and the impact of competitive bidders on our ability to obtain new backlog at reasonable margins acceptable to us;
any prolonged shutdown of the federal government;
our ability to qualify as an eligible bidder under government contract criteria;
changes in general economic conditions, including a prolonged recession, reductions in federal, state and local government funding for infrastructure services, changes in those governments’ budgets, practices, laws and regulations and adverse economic conditions in our geographic markets, such as those caused by the ongoing COVID-19 pandemic;
delays or difficulties related to the completion of our projects, including additional costs, reductions in revenues or the payment of liquidated damages, or delays or difficulties related to obtaining required governmental permits and approvals;
design/build contracts which subject us to the risk of design errors and omissions;
our ability to obtain bonding or post letters of credit;
our ability to raise additional capital on favorable terms;
our ability to attract and retain key personnel;
increased unionization of our workforce or labor costs and any work stoppages or slowdowns;
adverse weather conditions;
our ability to successfully identify, finance, complete and integrate acquisitions;
citations issued by any governmental authority, including the Occupational Safety and Health Administration;
federal, state and local environmental laws and regulations where non-compliance can result in penalties and/or termination of contracts as well as civil and criminal liability; and
the other factors discussed in more detail in the Company’s annual report on Form 10-K for the year ended December 31, 2020 (the “2020 Form 10-K”) under “Part I, Item 1A. Risk Factors.”
In reading this Report, you should consider these factors carefully in evaluating any forward-looking statements and you are cautioned not to place undue reliance on any forward-looking statements. Additional factors or risks that we currently deem immaterial, that are not presently known to us or that arise in the future could also cause our actual results to differ materially from our expected results. Given these uncertainties, investors are cautioned that many of the assumptions upon which our forward-looking statements are based are likely to change after the date the forward-looking statements are made. Further, we may make changes to our business plans that could affect our results. Although we believe that our plans, intentions and expectations reflected in, or suggested by, the forward-looking statements that we make in this Report are reasonable, we can provide no assurance that they will be achieved.
The forward-looking statements speak only as of the date made, and we undertake no obligation to publicly update or revise any forward-looking statements for any reason, whether as a result of new information, future events or developments, changed circumstances, or otherwise, and notwithstanding any changes in our assumptions, changes in business plans, actual experience or other changes.
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OVERVIEW

General—Sterling Construction Company, Inc. (“Sterling” or “the Company”), operates through a variety of subsidiaries within three segments specializing in Heavy Civil, Specialty Services and Residential projects in the United States (the “U.S.”), primarily across the southern U.S., the Rocky Mountain States, California and Hawaii, as well as other areas with strategic construction opportunities. Heavy Civil includes infrastructure and rehabilitation projects for highways, roads, bridges, airfields,airports, ports, light rail, water, wastewater and storm drainage systems. Specialty Services projects include landsite development activities, (including site excavation and drainage, drilling and blasting for excavation), foundations for multi-family homes, parking structures and other commercial concrete projects. Residential projects include concrete foundations for single-family homes. From strategy to operations, we are committed to sustainability by operating responsibly to safeguard and improve society’s quality of life. Caring for our people, our investors, our customers and our communities – that is The Sterling Way. This is why we use recycled materials, reclaim water and stockpile the aggregate from our projects. Moreover, from water delivery systems and transportation systems to community service initiatives, like facilitating the construction of homes for disabled veterans, Sterling always puts people first.

Impact of COVID-19—The Company continues to monitor closely the actual and expected impacts of the COVID-19 pandemic (including new and emerging strains and variants) on our business, financial condition and results of operations. Sterling’s business has been identified as a component of “Essential Critical Infrastructure” per the National Cybersecurity and Infrastructure Agency, and to date, we have not experienced significant shutdowns of project sites or operational interruptions. Consistent with governmental orders and public health guidelines, the Company has continued to operate across its footprint. While the Company has not incurred significant disruptions thus far from the COVID-19 pandemic, the pandemic may impact our business, condensed consolidated results of operations and financial condition in the future. However,On September 9, 2021, President Biden directed the U.S. Department of Labor’s Occupational Safety and Health Administration (“OSHA”) to craft regulations that would require all employers with at least 100 employees to require all employees to either be vaccinated or undergo weekly COVID-19 testing. On October 12, 2021, OSHA delivered to the White House’s Office of Information and Regulatory Affairs for review an emergency regulation to carry out this directive, which review was completed on November 1, 2021. Following this review, OSHA is expected to publish the emergency regulation, which would take effect immediately upon such publication. Complying with either a vaccine mandate or weekly testing requirements may be costly and it may be difficult to obtain test results on a weekly basis should the new regulation go into effect. Furthermore, it is possible that some employees may choose to leave employment over a vaccine or testing requirement, resulting in a potential labor shortage. The significance of the impact on our operations going forward is not yet certain and depends on numerous evolving factors as discussed in more detail in the Company’s annualthis quarterly report on the 2020 Form 10-K10-Q under “Part I,II, Item 1A. Risk Factors.”
MARKET OUTLOOK AND TRENDS
Heavy Civil—Sterling’s Heavy Civil business is primarily driven by federal, state and municipal funding. Federal funds, on average, provide 50% of annual State Department of Transportation capital outlays for highway and bridge projects. Several of the states in Sterling’s key markets have instituted actions to further increase annual spending. In October 2018, the Federal Aviation Administration reauthorized $3.35 billion annually through 2023. This reauthorization also includes more than $1 billion a year for airport infrastructure grants and about $1.7 billion for disaster relief. In November 2020, various state and local transportation measures were passed securing, and in some cases increasing, funding of major initiatives in Texas ($7.5 billion) and California ($520 million). In addition to the state locally funded actions, the $305 billion 2015 federally funded Fixing America’s Surface Transportation (“FAST”) Act increased the annual federal highway investment by 15.1% over a five-year period from 2016 to 2020. In September 2020, Congress passed a one-year extension of the FAST Act which added an additional $13.6 billion to the Highway Trust Fund. InOn September 30, 2021, the one-year extension of the FAST Act expired and a 30-day short-term extension was granted to extend the expiration to October 2018,31, 2021. This extension also serves as a new target for the Federal Aviation Administration reauthorized $3.35 billion annually through 2023. ThisHouse to pass the Infrastructure Investments and Jobs Act (“IIJA”) that provides a new five-year reauthorization also includes more than $1 billion a year for airport infrastructure grantsof highway and about $1.7public transportation programs with historic investment increases of $284 billion for disaster relief.all modes of transportation. With the passing of the IIJA, additional funding is reserved for transportation infrastructure with $110 billion reserved for roads and bridges, $66 billion for rail and $25 billion for airports. Multiple infrastructure proposals are currently underway in both the federal House and the Senate. If passed, these bills could add additional multi-year funding for highways, rail and airports starting in late 2021 or early 2022.

Specialty Services—Sterling’s Specialty Services business is primarily driven by investments from end users and developers. Key end users, including Amazon, Facebook and Home Depot, have continued implementing publicly announced multi-year capital infrastructure campaigns. In our primary market in the southeastern United States, and specifically Georgia, the warehouse availability rate is at 6.5%4.6% and for teneleven consecutive quarters over 20 million square feet of new construction has commenced. The outlook for the multi-family market continues to decline, as developers face economic concerns due to the COVID-19 pandemic and the availability and affordability of starter single family homes continues to rise.

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Residential—The continued revenue growth of the Company’s Residential business is directly related to the growth of new home starts in its key marketsmarket of Dallas-Fort Worth and Houston.continued expansion into the Houston and Phoenix markets. The Company’s core customer base is primarily made up of leading national home builders as well as regional and custom home builders. The Company has continued its expansion of the residential business into the Houston market and surrounding areas. Additionally, overOver the last several quarters, the residential market has experienced significant price volatility and availability for key materials including concrete, lumbersteel and steel,lumber, as well as increases in subcontractor labor cost. Generally, weWhile the Company has worked with customers to pass on the increases in material and labor cost, the Company may not be successful in recouping these additional costs onto the Company’s customers, however, there is often a delay in the ability to recoup the full impact.future.
BACKLOG
At June 30, 2021, ourOur backlog (“Backlog”) of construction projects, made up of our Heavy Civil and Specialty Services segments, was $1.57 billion,is the remaining amount of contracts that we expect to recognize as compared to $1.18 billion at December 31, 2020.revenue in future periods. The contracts in Backlog are typically completed in 6 to 36 months. Contracts in which we are the apparent low bidder for projectsOur unsigned low-bid awards (“Unsigned Low-bid Awards”) are excluded from Backlog until the contract is executed by our customer. We refer to the combination of our Backlog and Unsigned Low-bid Awards as “Combined Backlog”. Our book-to-burn ratio, a non-GAAP measure, is determined by taking our additions to Backlog and dividing it by revenue for the applicable period. This metric allows management to monitor the Company’s business development efforts to ensure we grow our Backlog and our business over time, and management believes that this measure is useful to investors for the same reason.
At September 30, 2021, our Backlog was $1.41 billion, as compared to $1.18 billion at December 31, 2020, with a book-to-burn ratio of 1.2X for the nine months ended September 30, 2021. Unsigned Low-bid Awards were $75.4$115.0 million at JuneSeptember 30, 2021 and $356.9 million at December 31, 2020. The combination of ourCombined Backlog and Unsigned Low-bid Awards, which we refer to as “Combined Backlog”, totaled $1.65 billion and $1.53 billion as of Juneat both September 30, 2021 and December 31, 2020, respectively.
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with a book-to-burn ratio of 1.0X for the nine months ended September 30, 2021.
The Company’s margin in Backlog has increased from 12.0% at December 31, 2020 to 12.4%12.3% at JuneSeptember 30, 2021 and the Combined Backlog margin increased from 11.8% at December 31, 2020 to 12.2%12.1% at JuneSeptember 30, 2021, driven by a greater mix of Specialty Services awards.
RESULTS OF OPERATIONS
Consolidated Results
Summary—For the secondthird quarter of 2021, the Company had operating income of $32.7$32.0 million, income before income taxes of $28.4$29.1 million, net income attributable to Sterling common stockholders of $20.1$21.1 million and net income per diluted share attributable to Sterling common stockholders of $0.69.$0.72.
Consolidated financial highlights for the three and sixnine months ended JuneSeptember 30, 2021 as compared to the three and sixnine months ended JuneSeptember 30, 2020 are as follows:
Three Months Ended June 30,Six Months Ended June 30, Three Months Ended September 30,Nine Months Ended September 30,
(In thousands)(In thousands)2021202020212020(In thousands)2021202020212020
RevenuesRevenues$401,666 $400,038 $716,982 $696,726 Revenues$463,449 $383,458 $1,180,431 $1,080,184 
Gross profitGross profit56,247 59,599 101,279 94,844 Gross profit57,804 49,916 159,083 144,760 
General and administrative expensesGeneral and administrative expenses(15,829)(18,451)(32,928)(36,055)General and administrative expenses(19,637)(15,154)(52,565)(51,209)
Intangible asset amortizationIntangible asset amortization(2,866)(2,866)(5,732)(5,703)Intangible asset amortization(2,866)(2,866)(8,598)(8,569)
Acquisition related costsAcquisition related costs— (139)— (612)Acquisition related costs— (401)— (1,013)
Other operating expense, netOther operating expense, net(4,832)(5,097)(7,144)(7,325)Other operating expense, net(3,270)(2,664)(10,414)(9,989)
Operating incomeOperating income32,720 33,046 55,475 45,149 Operating income32,031 28,831 87,506 73,980 
Interest, netInterest, net(5,725)(7,533)(11,715)(15,237)Interest, net(3,906)(7,154)(15,621)(22,391)
Gain on extinguishment of debt, netGain on extinguishment of debt, net1,401 — 1,064 — Gain on extinguishment of debt, net968 — 2,032 — 
Income before income taxes and noncontrolling interestsIncome before income taxes and noncontrolling interests28,396 25,513 44,824 29,912 Income before income taxes and noncontrolling interests29,093 21,677 73,917 51,589 
Income tax expenseIncome tax expense(8,179)(7,248)(12,939)(8,432)Income tax expense(7,336)(6,280)(20,275)(14,712)
Less: Net income attributable to noncontrolling interestsLess: Net income attributable to noncontrolling interests(161)(55)(1,274)(155)Less: Net income attributable to noncontrolling interests(631)(240)(1,905)(395)
Net income attributable to Sterling common stockholdersNet income attributable to Sterling common stockholders$20,056 $18,210 $30,611 $21,325 Net income attributable to Sterling common stockholders$21,126 $15,157 $51,737 $36,482 
Gross margin14.0 %14.9 %14.1 %13.6 %
Gross margin12.5 %13.0 %13.5 %13.4 %
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Revenues—Revenues were $401.7$463.4 million for the secondthird quarter of 2021, an increase of $1.6$80.0 million or 0.4%20.9% compared with the secondthird quarter of 2020. The increase in the secondthird quarter of 2021 was driven by a $16.2$48.8 million increase in Heavy Civil, a $22.9 million increase in Residential and an $8.3 million increase in Specialty Services and a $2.7 million increase in Residential, partly offset by a $17.3 million decrease in Heavy Civil.Services. Revenues were $717.0 million$1.2 billion for the sixnine months ended JuneSeptember 30, 2021, an increase of $20.3$100.3 million or 3%9.3% compared with the sixnine months ended JuneSeptember 30, 2020. The increase in the sixnine months ended JuneSeptember 30, 2021 was driven by a $35.6$43.9 million increase in Specialty Services, and a $10.5$33.4 million increase in Residential partly offset byand a $25.8$23.0 million decreaseincrease in Heavy Civil.
Gross profit—Gross profit was $56.2$57.8 million for the secondthird quarter of 2021, a decreasean increase of $3.4$7.9 million or 6%15.8% compared to the secondthird quarter of 2020. The Company’s gross margin as a percent of revenue decreased to 14.0%12.5% in the secondthird quarter of 2021, as compared to 14.9%13.0% in the secondthird quarter of 2020. The decreaseincrease in gross profit and decrease in margin as a percent of revenue was primarily driven by significanthigher volume, partly offset by continued headwinds from weather, inflation, labor and material supply issues in Specialty Services and Residential. In addition, Specialty Services and Residential had an exceptionally strong second quarter of 2020 due to a shift in productivity from the first quarter as a result of inclement weather. Gross profit was $101.3$159.1 million for the sixnine months ended JuneSeptember 30, 2021, an increase of $6.4$14.3 million or 7%9.9% compared to the sixnine months ended JuneSeptember 30, 2020. The Company’s gross margin as a percent of revenue increased to 14.1%13.5% in the sixnine months ended JuneSeptember 30, 2021, as compared to 13.6%13.4% in the sixnine months ended JuneSeptember 30, 2020. The increase inDespite the ongoing headwinds, gross profit was primarilyincreased for the nine months ended September 30, 2021, driven by higher volume from Specialty Services and the ramp up of construction on large design-build joint venture projects as we continue to reduce the lower margin low-bid heavy highway revenues for Heavy Civil. The increase in gross margin as a percent of revenue was primarily driven by the aforementioned large design-build joint venture projects for Heavy Civil.
Contracts in progress which were not substantially completed totaled approximately 216202 and 210215 at JuneSeptember 30, 2021 and 2020, respectively. These contracts are of various sizes, of different expected profitability and in various stages of completion. The nearer a contract progresses toward completion, the more visibility the Company has in refining its estimate of total revenues (including incentives, delay penalties and change orders), costs and gross profit. Thus, gross profit as a percent of
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revenues can increase or decrease from comparable and subsequent quarters due to variations among contracts and depending upon the stage of completion of contracts.
General and administrative expenses—General and administrative expenses were $15.8$19.6 million, or 4.2% of revenue, for the secondthird quarter of 2021, a decrease of $2.6 million compared to $15.2 million, or 4.0% of revenue, for the secondthird quarter of 20202020. General and administrative expenses were $52.6 million, or 4.5% of revenue, for the nine months ended September 30, 2021, compared to $51.2 million, or 4.7% of revenue, for the nine months ended September 30, 2020. The Company has begun to see an impact to general and administrative expenses were $32.9 milliondue to inflation and supply-chain issues; however, the Company anticipates that these expenses will remain at approximately 4.8% of revenue for the six months ended June 30, 2021 a decrease of $3.1 million compared to the six months ended June 30, 2020. The decreases were primarily due to lower stock compensation and other corporate related costs. Stock compensation expense was $2.0 million for the second quarter of 2021, a decrease of $1.9 million compared to the second quarter of 2020 and stock compensation expense was $3.9 million for the six months ended June 30, 2021, a decrease of $2.3 million compared to the six months ended June 30, 2020.full year 2021.
Interest expense—Interest expense was $5.7$3.9 million for the secondthird quarter of 2021 compared to $7.6$7.2 million for the secondthird quarter of 2020 and interest expense was $11.7$15.7 million for the sixnine months ended JuneSeptember 30, 2021, compared to $15.4$22.5 million for the sixnine months ended JuneSeptember 30, 2020. The decrease is in part due to the Company’s declining debt, as the Company has paid down $95$69 million of its Credit Facility balance since the secondthird quarter of 2020. In addition2020, and in part due to a declining debt balance, the Company expects pre-tax interest expense to decline by approximately $1.6 million per quarter for the balance of 2021 based on a 2% lower applicable interest rate provided under the Credit Agreement, as amended Credit Agreement.in the second quarter of 2021. See Note 8 - Debt for more information.
Income taxes—The effective income tax rate was approximately 29%25.2% for both the secondthird quarter of 2021 and 27.4% for the sixnine months ended JuneSeptember 30, 2021. The effective income tax rates for third quarter of 2021 and for the nine months ended September 30, 2021 benefited primarily from the non-taxed PPP loan forgiveness. See Note 8 - Debt for more information. The Company expectsanticipates an effective income tax rate for the full year 2021 of 29.5%27.5% to 30%28%. Due to its net operating loss carryforwards, the Company expects no cash payments for federal income taxes for 2021 or 2020. See Note 12 - Income Taxes for more information.
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Segment Results
Three Months Ended June 30,Six Months Ended June 30, Three Months Ended September 30,Nine Months Ended September 30,
(In thousands)(In thousands)2021% of
Revenue
2020% of
Revenue
2021% of
Revenue
2020% of
Revenue
(In thousands)2021% of
Revenue
2020% of
Revenue
2021% of
Revenue
2020% of
Revenue
RevenuesRevenues        Revenues        
Heavy CivilHeavy Civil$203,153 50%$220,448 55%$350,207 49%$376,063 53%Heavy Civil$249,898 54%$201,078 52%$600,105 51%$577,141 54%
Specialty ServicesSpecialty Services151,904 38%135,703 34%275,992 38%240,426 35%Specialty Services148,256 32%139,971 37%424,248 36%380,397 35%
ResidentialResidential46,609 12%43,887 11%90,783 13%80,237 12%Residential65,295 14%42,409 11%156,078 13%122,646 11%
Total RevenuesTotal Revenues$401,666  $400,038 $716,982 $696,726 Total Revenues$463,449  $383,458 $1,180,431 $1,080,184 
Operating IncomeOperating Income   Operating Income   
Heavy CivilHeavy Civil$4,404 2.2%$3,896 1.8%$5,494 1.6%$274 0.1%Heavy Civil$7,174 2.9%$2,405 1.2%$12,668 2.1%$2,679 0.5%
Specialty ServicesSpecialty Services22,907 15.1%23,246 17.1%39,084 14.2%34,360 14.3%Specialty Services17,932 12.1%21,474 15.3%57,016 13.4%55,834 14.7%
ResidentialResidential5,409 11.6%6,043 13.8%10,897 12.0%11,127 13.9%Residential6,925 10.6%5,353 12.6%17,822 11.4%16,480 13.4%
SubtotalSubtotal32,720 8.1%33,185 8.3%55,475 7.7%45,761 6.6%Subtotal32,031 6.9%29,232 7.6%87,506 7.4%74,993 6.9%
Acquisition related costsAcquisition related costs— (139)— (612)Acquisition related costs— (401)— (1,013)
Total Operating IncomeTotal Operating Income$32,720 8.1%$33,046 8.3%$55,475 7.7%$45,149 6.5%Total Operating Income$32,031 6.9%$28,831 7.5%$87,506 7.4%$73,980 6.8%
Heavy Civil
Revenues—Revenues were $203.2$249.9 million for the secondthird quarter of 2021, a decreasean increase of $17.3$48.8 million or 7.8%24.3% compared to the secondthird quarter of 2020, and revenues were $350.2$600.1 million for the sixnine months ended JuneSeptember 30, 2021, a decreasean increase of $25.9$23.0 million or 6.9%4.0% compared to the sixnine months ended JuneSeptember 30, 2020. The decreasesincreases were primarily driven by lowerhigher heavy highway and aviation revenue, partly offset by lower water containment and treatment revenue. The decreaseincrease in heavy highway revenue was primarily due to inclement weather in Texas in the second quarterramp up of 2021 and our continued progress reducing our low-bid heavy highway revenue.construction on large design-build joint venture projects. During the secondthird quarter of 2021, our low-bid heavy highway revenue decreased by $43.3$3.0 million, which was partially offset by an increase of $30$43.5 million from heavy highway design build and other revenues compared to the secondthird quarter of 2020. During the sixnine months ended JuneSeptember 30, 2021, our low-bid heavy highway revenue decreased by $62.9$65.9 million, which was partially offset by an increase of $52.7$96.2 million from heavy highway design build and other revenues compared to the sixnine months ended JuneSeptember 30, 2020.
Operating Income—Operating income was $4.4$7.2 million for the secondthird quarter of 2021, an increase of $0.5$4.8 million, compared to the secondthird quarter of 2020, and operating income was $5.5$12.7 million for the sixnine months ended JuneSeptember 30, 2021, an increase of $5.2$10.0 million, compared to the sixnine months ended JuneSeptember 30, 2020. The increases were the result of improved margin
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mix with the ramp up of construction on large design-build joint venture projects and the continuation of our planned revenue reduction from lower margin low-bid heavy highway work.
Specialty Services
Revenues—Revenues were $151.9$148.3 million for the secondthird quarter of 2021, an increase of $16.2$8.3 million or 11.9%5.9% compared to the secondthird quarter of 2020, and revenues were $276.0$424.2 million for the sixnine months ended JuneSeptember 30, 2021, an increase of $35.6$43.9 million or 14.8%11.5% compared to the sixnine months ended JuneSeptember 30, 2020. The increases were primarily driven by higher volume from land development, partly offset by a decrease in commercial revenues.site development.
Operating income—Operating income was $22.9$17.9 million for the secondthird quarter of 2021, a decrease of $0.3$3.5 million, compared to the secondthird quarter of 2020. The decrease was driven by the aforementionedcontinued headwinds from supply chain issues and exceptionally strong second quarter of 2020,the related impact on productivity and efficiency, as well as lower project margin mix in the secondthird quarter of 2021. Operating income was $39.1$57.0 million for the sixnine months ended JuneSeptember 30, 2021, an increase of $4.7$1.2 million, compared to the sixnine months ended JuneSeptember 30, 2020. The increase was driven by higher volume from landsite development, in the first and second quarters of 2021, partly offset by the aforementioned second quarter impacts.headwinds.
Residential
Revenues—Revenues were $46.6$65.3 million for the secondthird quarter of 2021, an increase of $2.7$22.9 million or 6.2%54.0%, compared to the third quarter of 2020. The Company’s revenue increased due to a record number of slabs poured in the third quarter, primarily as a result of the completion of a large amount of uncompleted slabs which shifted from the second quarter of 2020, and revenues2021 due to weather related delays. Revenues were $90.8$156.1 million for the sixnine months ended JuneSeptember 30, 2021, an increase of $10.5$33.4 million or 13.1%27.3%, compared to the second quarter ofnine months ended September 30, 2020. Despite inclement weather in Texas in the second quarter
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first half of 2021, the Company’s revenue increased due to a record number of slabs poured in each of the first and secondthree quarters of 2021. We continue to see strong demand for new housing in our Texas footprint.footprint and our expansion into the Arizona market.
Operating income—Operating income was $5.4$6.9 million for the secondthird quarter of 2021, a decreasean increase of $0.6$1.6 million, compared to the secondthird quarter of 2020 and operating income was $10.9$17.8 million for the sixnine months ended JuneSeptember 30, 2021, a decreasean increase of $0.2$1.3 million, compared to the sixnine months ended JuneSeptember 30, 2020. The decreasesincreases were driven by the aforementioned higher volume; however, operating margins declined due to higher material costs for concrete, lumbersteel and steel,lumber, and the lack of consistent availability of these materials, as well as labor shortages and increased subcontractor labor costs, partly offset by the aforementioned higher volume increases.costs. While the Company has been successful at increasing its pricesworked with customers to recouppass on the increases in material and labor cost, there continues tothe Company may not be a timing delaysuccessful in obtaining price increases that correspond withrecouping these additional costs in the timing and volatility of the increases in cost. The Company has and will continue to work with Residential customers to recoup increases in material and labor cost.future.
LIQUIDITY AND SOURCES OF CAPITAL
Cash—Cash at JuneSeptember 30, 2021, was $93.6$117.7 million, and includes the following components:
(In thousands)(In thousands)June 30,
2021
December 31,
2020
(In thousands)September 30,
2021
December 31,
2020
Generally AvailableGenerally Available$31,365 $26,419 Generally Available$57,086 $26,419 
Consolidated 50% Owned SubsidiariesConsolidated 50% Owned Subsidiaries45,091 30,354 Consolidated 50% Owned Subsidiaries42,965 30,354 
Construction Joint VenturesConstruction Joint Ventures17,174 9,412 Construction Joint Ventures17,651 9,412 
Total CashTotal Cash$93,630 $66,185 Total Cash$117,702 $66,185 
The following tables set forth information about our cash flows and liquidity:
Six Months Ended June 30,Nine Months Ended September 30,
(In thousands)(In thousands)20212020(In thousands)20212020
Net cash provided by (used in):Net cash provided by (used in):  Net cash provided by (used in):  
Operating activitiesOperating activities$91,492 $52,327 Operating activities$135,742 $92,255 
Investing activitiesInvesting activities(21,460)(13,805)Investing activities(37,222)(20,531)
Financing activitiesFinancing activities(42,633)(13,577)Financing activities(46,746)(43,558)
Net change in cash, cash equivalents, and restricted cashNet change in cash, cash equivalents, and restricted cash$27,399 $24,945 Net change in cash, cash equivalents, and restricted cash$51,774 $28,166 
Operating Activities—During the sixnine months ended JuneSeptember 30, 2021, net cash provided by operating activities was $91.5$135.7 million compared to net cash provided by operating activities of $52.3$92.3 million in the sixnine months ended JuneSeptember 30, 2020. Cash flows provided by operating activities were driven by net income, adjusted for various non-cash items and changes in accounts receivable, net contracts in progress and accounts payable balances (collectively, “Contract Capital”), as discussed below, and other accrued liabilities.
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Changes in Contract Capital—The change in operating assets and liabilities varies due to fluctuations in operating activities and investments in Contract Capital. The changes in the components of Contract Capital during the sixnine months ended JuneSeptember 30, 2021 and 2020 were as follows:
Six Months Ended June 30,Nine Months Ended September 30,
(In thousands)(In thousands)20212020(In thousands)20212020
Contracts in progress, netContracts in progress, net$26,008 $22,964 Contracts in progress, net$26,694 $30,278 
Accounts receivableAccounts receivable(34,105)(27,713)Accounts receivable(41,259)(24,153)
Receivables from and equity in construction joint venturesReceivables from and equity in construction joint ventures(1,358)(3,200)Receivables from and equity in construction joint ventures(5,003)(4,606)
Accounts payableAccounts payable38,308 (6,495)Accounts payable47,423 (10,257)
Change in Contract Capital, netChange in Contract Capital, net$28,853 $(14,444)Change in Contract Capital, net$27,855 $(8,738)
During the sixnine months ended JuneSeptember 30, 2021, the change in Contract Capital increased liquidity by $28.9$27.9 million. The Company’s Contract Capital fluctuations are impacted by the mix of projects in Backlog, seasonality, the timing of new awards, and related payments for work performed and the contract billings to the customer as projects are completed. Contract Capital is also impacted at period-end by the timing of accounts receivable collections and accounts payable payments for projects.
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Investing Activities—During the sixnine months ended JuneSeptember 30, 2021, net cash used in investing activities was $21.5$37.2 million, compared to net cash used of $13.8$20.5 million in the sixnine months ended JuneSeptember 30, 2020. The use of cash was driven by purchases of capital equipment and buildings and improvements. Capital equipment is acquired as needed to support changingincreasing levels of production activities and to replace retiring equipment, particularly within our Specialty Services segment.
Financing Activities—During the sixnine months ended JuneSeptember 30, 2021, net cash used in financing activities was $42.6$46.7 million, compared to net cash used of $13.6$43.6 million in the prior year. The financing cash outflow was driven by $40.1$44.2 million of repayments on the Term Loan Facility and $2.0 million in distributions to noncontrolling interest owners.
Capital StrategyThe Company will continue to explore additional revenue growth and capital alternatives to improve leverage and strengthen its financial position in order to take advantage of trends in the civil infrastructure and specialty services markets. The Company expects to pursue strategic uses of its cash, such as, strategic acquisitions in its existing segments, or adding a new segment, of businesses that meet itsour gross margin targets and overall profitability, and managing its debt balances.
InflationInflationFor the past several years, inflation generally has not had a material impact on our financial results; however, from time to time andresults. However, beginning in recent times,2021, supply chain issues have causedvolatility has resulted in price increases in oil, fuel, lumber, concrete and steel prices which have affectedincreased our cost of operations.operations, and inflation has increased our general and administrative expense. Anticipated cost increases and reductions are considered in our bids to customerscustomers; however, inflation has had, and may continue to have, a negative impact on proposed new construction projects.the Company’s financial results.
JOINT VENTURES
We participate in various construction joint venture partnerships in order to share expertise, risk and resources for certain highly complex projects. The joint venture’s contract with the project owner typically requires joint and several liability among the joint venture partners. Although our agreements with our joint venture partners provide that each party will assume and fund its share of any losses resulting from a project, if one of our partners was unable to pay its share, we would be fully liable for such share under our contract with the project owner. Circumstances that could lead to a loss under these guarantee arrangements include a partner’s inability to contribute additional funds to the venture in the event that the project incurred a loss or additional costs that we could incur should the partner fail to provide the services and resources toward project completion that had been committed to in the joint venture agreement. See the 2020 Form 10-K under “Part I, Item 1A. Risk Factors.”
 At JuneSeptember 30, 2021, there was approximately $415.2$354.1 million of construction work to be completed on unconsolidated construction joint venture contracts, of which $179.5$152.6 million represented our proportionate share. Due to the joint and several liability under our joint venture arrangements, if one of our joint venture partners fails to perform, we and the remaining joint venture partners would be responsible for completion of the outstanding work. As of JuneSeptember 30, 2021, we are not aware of any situation that would require us to fulfill responsibilities of our joint venture partners pursuant to the joint and several liability under our contracts.
NEW ACCOUNTING STANDARDS
There have been no material changes to the Company’s discussion of new accounting standards from those described in Note 2 - Basis of Presentation and Significant Accounting Policies of our annual report on Form 10-K for the year ended December 31, 2020.
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CRITICAL ACCOUNTING ESTIMATES
There have been no material changes to the Company’s discussion of critical accounting estimates from those described in Item 7 of our annual report on Form 10-K for the year ended December 31, 2020.
Item 3. Quantitative and Qualitative Disclosures about Market Risk
Interest Rate Risk
We continue to utilize a swap arrangement to hedge against interest rate variability associated with $275 million of the $315$311 million outstanding under the Term Loan Facility. The Company has designated its interest rate swap agreement as a cash flow hedging derivative. To the extent the derivative instrument is effective and the documentation requirements have been met, changes in fair value are recognized in other comprehensive income (loss) until the underlying hedged item is recognized in earnings. The total fair value of the contract was a net loss of approximately $4.7$3.8 million at JuneSeptember 30, 2021. For the $40$36 million remaining portion of the Term Loan Facility not associated with the interest rate swap hedge, at JuneSeptember 30, 2021 a 100-basis point (or 1%) increase or decrease in the interest rate would increase or decrease interest expense by approximately $400$359 thousand per year.
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Other
The carrying values of the Company’s cash and cash equivalents, accounts receivable and accounts payable approximate their fair values because of the short-term nature of these instruments. At JuneSeptember 30, 2021, the fair value of the term loan, based upon the current market rates for debt with similar credit risk and maturities, approximated its carrying value as interest is based on LIBOR plus an applicable margin.
Item 4. Controls and Procedures
Evaluation of Disclosure Controls and Procedures
Disclosure controls and procedures include, but are not limited to, controls and procedures designed to ensure that information required to be disclosed by an issuer in the reports that it files or submits under the Securities Exchange Act of 1934 is accumulated and communicated to the issuer’s management, including the principal executive and principal financial officers, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure.
The Company’s principal executive officer and principal financial officer reviewed and evaluated the Company’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934) as of JuneSeptember 30, 2021. Based on that evaluation, the Company’s principal executive officer and principal financial officer concluded that the Company’s disclosure controls and procedures were effective at JuneSeptember 30, 2021 to ensure that the information required to be disclosed by the Company in this Report is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms and is accumulated and communicated to the Company’s management including the principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure.
Changes in Internal Control over Financial Reporting
There have been no changes in our internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) during the quarter ended JuneSeptember 30, 2021 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.
Inherent Limitations on Effectiveness of Controls
Internal control over financial reporting may not prevent or detect all errors and all fraud. Also, projections of any evaluation of effectiveness of internal control to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

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PART II—OTHER INFORMATION
Item 1. Legal Proceedings
The Company, including its construction joint ventures and its consolidated 50% owned subsidiaries, is now and may in the future be involved as a party to various legal proceedings that are incidental to the ordinary course of business. The Company regularly analyzes current information about these proceedings and, as necessary, provides accruals for probable liabilities on the eventual disposition of these matters.
In the opinion of management, after consultation with legal counsel, there are currently no threatened or pending legal matters that would reasonably be expected to have a material adverse impact on the Company’s Consolidated Results of Operations, Financial Position or Cash Flows.
Item 1A. Risk Factors
There have not been any material changes from the risk factors previously disclosed in “Part I, Item 1A. Risk Factors” of the 2020 Form 10-K, except as provided below. The below discussion of risk factors contains forward-looking statements. These risk factors may be important to understanding other statements in this Report and the 2020 Form 10-K. The below information should be read in conjunction with the risk factors previously disclosed in “Part I, Item 1A. Risk Factors” of the 2020 Form 10-K, and with the other portions of this Report, including “Cautionary Statement Regarding Forward-Looking Statements,” “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Item 2 of Part I and the Condensed Consolidated Financial Statements and related notes in Item 1 of Part I. You should carefully consider such risk factors, which could materially affect the business, financial condition or future results.
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Risks Relating to Our Business
The Federal government’s proposed workplace vaccine mandate or weekly testing requirement, if and when effective, could disrupt the Company’s operations, increase costs and adversely affect its business, results of operations, and financial condition.
On September 9, 2021, President Biden directed OSHA to craft regulations that would require all employers with at least 100 employees to require all employees to either be vaccinated or undergo weekly COVID-19 testing. On October 12, 2021, OSHA delivered to the White House’s Office of Information and Regulatory Affairs for review an emergency regulation to carry out this directive, which review was completed on November 1, 2021. Following this review, OSHA is expected to publish the emergency regulation, which would take effect immediately upon such publication. Complying with either a vaccine mandate or weekly testing requirements may be costly and it may be difficult to obtain test results on a weekly basis should the new regulation go into effect. Furthermore, it is possible that some employees may choose to leave employment over a vaccine or testing requirement, resulting in a potential labor shortage. Additional uncertainty could be caused by competing and potentially conflicting laws and regulations, such as the recent executive order issued by the governor of Texas prohibiting vaccine mandates. While the Company has not incurred significant disruptions thus far from the COVID-19 pandemic, the Federal government’s proposed workplace vaccine mandate or weekly testing requirement may impact our business, results of operations and financial condition in the future.
A prolonged government shutdown may adversely affect our Heavy Civil business.
We derive a significant portion of our Heavy Civil revenue from governmental agencies and programs. A prolonged government shutdown could impact inspections, regulatory review and certifications, grants, approvals, or cause other situations that could result in our incurring substantial labor or other costs without reimbursement under government contracts, or the delay or cancellation of key government programs in which we are involved, all of which could have a material adverse effect on our business and results of operations.

Item 6. Exhibits
The following exhibits are filed with this Report:
Exhibit No.Exhibit Title
3.1 (1)
3.2 (1)
10.1 (1)
10.2 (1)
10.3 (2)
10.4 (2)
31.1 (2)
31.2 (2)
32.1 (3)
32.2 (3)
101.INSInline XBRL Instance Document—The instance document does not appear in the Interactive Data File as its XBRL tags are embedded within the Inline XBRL document
101.SCHInline XBRL Taxonomy Extension Schema Document
101.CALInline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEFInline XBRL Taxonomy Extension Definition Linkbase Document
101.LABInline XBRL Taxonomy Extension Label Linkbase Document
101.PREInline XBRL Taxonomy Extension Presentation Linkbase Document
104Cover Page Interactive Data File (formatted in Inline XBRL and contained in Exhibit 101)
(1) Incorporated by reference to the filing indicated
(2) Filed herewith
(3) Furnished herewith

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SIGNATURES
 
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
 STERLING CONSTRUCTION COMPANY, INC.
   
Date: AugustNovember 3, 2021By:/s/ Ronald A. Ballschmiede
  Ronald A. Ballschmiede
  Chief Financial Officer and Duly Authorized Officer
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