<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS FINANCIAL INFORMATION EXTRACTED FROM THE DYCOM
INDUSTRIES, INC CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS FOR ALL
PERIOD SPRESENTED AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
CONSOLIDATED FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1
<CURRENCY> U.S. DOLLARS
       
                                                                       
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS
<FISCAL-YEAR-END>                          JUL-31-1998             JUL-31-1998             JUL-31-1998
<PERIOD-START>                             JUL-31-1998             JUL-31-1998             JUL-31-1998
<PERIOD-END>                               OCT-31-1997             JAN-31-1998             APR-30-1998
<EXCHANGE-RATE>                                      1                       1                       1
<CASH>                                       2,346,213              28,284,577              29,025,332
<SECURITIES>                                         0                       0                       0
<RECEIVABLES>                               51,951,621              46,060,506              55,366,143
<ALLOWANCES>                                 1,220,536               1,307,254               2,017,900
<INVENTORY>                                 11,945,540              13,438,339              18,514,948
<CURRENT-ASSETS>                            69,553,983              91,752,747             106,664,320
<PP&E>                                      88,861,267              89,871,045              95,231,834
<DEPRECIATION>                              49,668,016              50,564,190              53,070,369
<TOTAL-ASSETS>                             114,623,852             136,604,827             153,806,725
<CURRENT-LIABILITIES>                       46,151,408              29,879,443              38,929,185
<BONDS>                                     29,512,072              19,737,646              22,818,672
<PREFERRED-MANDATORY>                                0                       0                       0
<PREFERRED>                                          0                       0                       0
<COMMON>                                     4,223,826               4,894,357               4,896,172
<OTHER-SE>                                  42,904,700              81,566,150              86,236,009
<TOTAL-LIABILITY-AND-EQUITY>               114,623,852             136,604,827             153,806,725
<SALES>                                              0                       0                       0
<TOTAL-REVENUES>                            91,132,533             171,813,092             267,741,732
<CGS>                                                0                       0                       0
<TOTAL-COSTS>                               71,320,503             134,956,874             208,616,434
<OTHER-EXPENSES>                             3,122,734               6,323,371               9,905,266
<LOSS-PROVISION>                                     0                       0                       0
<INTEREST-EXPENSE>                             636,189               1,097,845               1,554,358
<INCOME-PRETAX>                              8,387,519              15,654,994              24,462,151
<INCOME-TAX>                                 2,649,482               5,051,336               8,515,488
<INCOME-CONTINUING>                          5,738,037              10,603,658              15,946,663
<DISCONTINUED>                                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                 5,738,037              10,603,658              15,946,663
<EPS-PRIMARY>                                     0.45                    0.78                    1.15
<EPS-DILUTED>                                     0.45                    0.77                    1.13