Exhibit - 10.231 CIT Tel: 800 553-8778 Equipment Rental and Finance - US P.O. Box 27248 1540 W. Fountainhead Parkway Tempe, AZ 85285-7248 Tempe, AZ 85282 www.cit.com [CIT LOGO] Meadow Valley Contractors, Inc. 4411 South 44th Street #D-11 Phoenix, AZ 85040 RE: AMENDMENT OF AMENDED AND RESTATED REVOLVING LOAN AGREEMENT, ACCOUNT #90045210 Gentlemen: Reference is made to the Amended and Restated Revolving Loan Agreement, dated July 27, 2001, as amended (the "Loan Agreement"), between Meadow Valley Contractors, Inc., (the "Company") and The CIT Group/Equipment Financing, Inc. ("CIT"). The Loan Agreement shall be amended as follows: 1. Section 5 of the Loan Agreement: "governing rate" plus 1.50%, is amended to read: "governing rate" plus 1.25%. Except as modified herein, the Loan Agreement and all documents executed in connection therewith shall continue in full force and effect. Dated: April 1, 2003 Sincerely, THE CIT GROUP/EQUIPMENT FINANCING, INC. By: Title ------------------- ------------ ACKNOWLEDGED AND AGREED TO: MEADOW VALLEY CONTRACTORS, INC. By: Bradley E. Larson Title President ---------------------- ----------- GUARANTOR ACKNOWLEDGEMENT: MEADOW VALLEY CORPORATION By: Kenneth D. Nelson Title V.P. ---------------------- ----------- READY MIX, INC. By: Clint Tryon Title Sec/Treas ---------------------- -----------