|UNITED
        STATES
        SECURITIES
        AND EXCHANGE COMMISSION
        Washington, D.C. 20549
        FORM 10-K/A
        Amendment No. 1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|[X]	annual
        report pursuant to section 13 or 15(d) of the securities exchange act of 1934
        For the fiscal year ended: December 31,
        2015                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|[
        ]	transition report pursuant to section 13 or 15(d) of the securities exchange
        act of 1934
        For the transition period from _______________________to
        ________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Commission file number 1-31993                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|STERLING CONSTRUCTION COMPANY, INC.
        (Exact name of registrant as specified in
        its charter)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|Delaware
        State or other jurisdiction of
        incorporation or organization                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|1800 Hughes Landing Blvd.
        The Woodlands, Texas
        (Address of principal executive offices)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Registrant’s telephone number, including area code (281) 214-0800                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Securities registered pursuant to Section
        12(b) of the Act:
        Title of each class
        Common Stock, $0.01 par value per share
        (Title of Class)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Securities registered pursuant to section
        12(g) of the Act:
        None                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|Indicate by check mark if the registrant
        is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.
        [ ] Yes [√] No                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Indicate by check mark if the registrant
        is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.
        [ ] Yes [√] No                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|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.
        [√] Yes [ ] No                                                                                                                                                                                                                                                                                                                                                                            
|Indicate by check mark whether the registrant
        has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted
        and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter prior that the registrant
        was required to submit and post such files).
        [√] ] Yes [ ] No
        Indicate by check mark if disclosure of
        delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s
        knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment
        to this Form 10-K [√]
|Indicate by check mark whether the registrant
        is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definitions of
        “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2
        of the Exchange Act.                                                                                                                                                                                                                                                                                                                                                                                                                                                            

|Large accelerated filer [ ]                                            | Accelerated filer
        [√]
|---------------------------------------------------------------------- | -----------------------------
|Non-accelerated filer [ ] (Do not check if a smaller reporting company | Smaller reporting company [] 



|Indicate by check mark if the registrant is a shell company (as defined in Rule 12b-2 of the Act). [   ] Yes  [√] No   
|-----------------------------------------------------------------------------------------------------------------------
|Aggregate market value of the voting and non-voting common equity held by non-affiliates at June 30, 2015: $74,202,960.
|At March 4, 2016, the registrant had 19,773,170 shares of common stock outstanding.                                    
|                                                                                                                       



DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Company’s definitive
Proxy Statement to be filed with the Securities and Exchange Commission and delivered to stockholders in connection with the Annual
Meeting of Stockholders to be held on May 6, 2016 are incorporated by reference into Part III of this Form 10-K







Explanatory Note



This Amendment No. 1 to the Company's Annual
Report on Form 10-K for the year ended December 31, 2015 (the "Original Filing") is being filed to correct
certain inadvertent errors and omissions in the information and exhibits contained in the Exhibit List under Item 15 and in the
Exhibit Index, as follows:



| | (a) | To remove Exhibit 10.1 of the Original Filing because it duplicates Exhibit 10.8.3 of the Original
Filing.
| | --- | ----------------------------------------------------------------------------------------------------------



| | (b) | To change the number of the second exhibit numbered 10.1.1 in the Original Filing to Exhibit 10.13
and to file the same.
| | --- | ------------------------------------------------------------------------------------------------------------------------



| | (c) | To change the number of the second exhibit numbered 10.1.2 in the Original Filing to Exhibit 10.14
and to file the same.
| | --- | ------------------------------------------------------------------------------------------------------------------------



| | (d) | To delete Exhibit 10.6 of the Original Filing because it has not been in effect for more than two
years.
| | --- | --------------------------------------------------------------------------------------------------------



| | (e) | To correct certain incorporation by reference information in Exhibits 10.5.1 and 10.8.4 in the Original
Filing.
| | --- | ---------------------------------------------------------------------------------------------------------------



| | (f) | To delete the incorporation by reference information in Exhibit 10.9.3 in the Original Filing and
to file the same.
| | --- | -------------------------------------------------------------------------------------------------------------------



| | (g) | To list and file new exhibits numbered 10.13.1 and 10.15 through 10.21, a series of exhibits related
to the Company's two 50%-owned affiliates that were omitted from the Original Filing.
| | --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



No other changes have been made to the Original
Filing.



Item
15. Exhibits and Financial Statement Schedules.



The following Financial
Statements and Financial Statement Schedules are filed with this Report:



Financial Statements:



Reports of the Company’s
Independent Registered Public Accounting Firm



Consolidated Balance
Sheets as of December 31, 2015 and 2014



Consolidated Statements
of Operations for the years ended December 31, 2015, 2014 and 2013



Consolidated
Statements of Comprehensive Loss for the years ended December 31, 2015, 2014 and 2013



Consolidated Statements
of Cash Flows for the years ended December 31, 2015, 2014 and 2013



Consolidated Statements
of Stockholders’ Equity for the years ended December 31, 2015, 2014 and 2013



Financial
Statement Schedules.



None.



Exhibits.



The following exhibits are filed
with this Report.









Page 2




Explanatory Note



Prior to changing its name to Sterling
Construction Company, Inc. in November 2001, the Company’s name was Oakhurst Company, Inc. References in the following exhibit
list use the name of the Company in effect at the date of the exhibit.



|Number  | Exhibit Title                                                                                                                                                                                                                                                                                                                                                                                
|------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|2.1.1   | Purchase Agreement, dated as of December 3, 2009, by and among Kip Wadsworth, Ty Wadsworth, Con Wadsworth, Tod Wadsworth and Sterling Construction Company, Inc. (incorporated by reference to Exhibit 2.1 to Sterling Construction Company, Inc.'s Current Report on Form 8-K, filed on December 3, 2009 (SEC File No. 1-31993)).                                                           
|3.1     | Certificate of Incorporation of Sterling Construction Company, Inc. as amended through May 9, 2014 (incorporated by reference to Exhibit 3 to Sterling Construction Company, Inc.'s Current Report on Form 8-K, filed on May 13, 2014 (SEC File No. 1-31993)).                                                                                                                               
|3.2*    | Bylaws of Sterling Construction Company, Inc. as amended through March 11, 2016.                                                                                                                                                                                                                                                                                                             
|4.1     | Form of Common Stock Certificate of Sterling Construction Company, Inc. (incorporated by reference to Exhibit 4.5 to Sterling Construction Company, Inc.'s Form 8-A, filed on January 11, 2006 (SEC File No. 1-31993)).                                                                                                                                                                      
|10.1.1# | The Sterling Construction Company, Inc. Stock Incentive Plan as amended through May 9, 2014 (incorporated by reference to Exhibit 10.2 to Sterling Construction Company, Inc.'s. Current Report on Form 8-K, filed on May 13, 2014 (SEC File No. 1-31993)).                                                                                                                                  
|10.1.2# | 2014 Sterling Incentive Compensation Plan (incorporated by reference to Exhibit 10.1 to Sterling Construction Company, Inc.’s Current Report on Form 8-K, filed on May 13, 2014 (SEC File No. 1-31993)).                                                                                                                                                                                     
|10.2#   | Forms of Stock Option Agreement under the Oakhurst Company, Inc. 2001 Stock Incentive Plan (now known as The Sterling Construction Company, Inc. Stock Incentive Plan) (incorporated by reference to Exhibit 10.52 to Sterling Construction Company, Inc.'s Annual Report on Form 10-K for the year ended December 31, 2004, filed on March 29, 2005 (SEC File No. 1-31993)).                
|10.3*#  | Standard compensation arrangements for non-employee directors of Sterling Construction Company, Inc. adopted by the Board of Directors to be effective March 1, 2016.                                                                                                                                                                                                                        
|10.4.9  | Loan and Security Agreement dated as of May 29, 2015 between Nations Fund I, LLC, Nations Equipment Finance, LLC, as administrative and collateral agent, Sterling Construction Company, Inc. and its wholly-owned subsidiaries (incorporated by reference to Exhibit 10.1 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on June 3, 2015 (SEC File No. 1-31993)).
|10.4.10 | Term Loan Promissory Note dated May 29, 2015 in the amount of $20,000,000 (incorporated by reference to Exhibit 10.2 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on June 3, 2015 (SEC File No. 1-31993)).                                                                                                                                                      
|10.4.11 | Revolving Loan Promissory Note dated May 29, 2015 in the amount of $20,000,000 (incorporated by reference to Exhibit 10.3 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on June 3, 2015 (SEC File No. 1-31993)).                                                                                                                                                 



Page 3






|10.4.12 | Security Agreement dated as of May 29, 2015 between Nations Fund I, LLC, Nations Equipment Finance, LLC, as administrative and collateral agent, Road and Highway Builders, LLC, and Myers & Sons Construction, L.P. (incorporated by reference to Exhibit 10.4 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on June 3, 2015 (SEC File No. 1-31993)).         
|------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|10.4.13 | Real Property Waiver dated May 29, 2015 between Nations Equipment Finance, LLC as administrative and collateral agent, and Texas Sterling Construction Co. relating to 3475 High River Road, Fort Worth Texas (incorporated by reference to Exhibit 10.5 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on June 3, 2015 (SEC File No. 1-31993)).                
|10.4.14 | Real Property Waiver dated May 29, 2015 between Nations Equipment Finance, LLC as administrative and collateral agent, and Texas Sterling Construction Co. relating to 5638 FM 1346, San Antonio, Texas (incorporated by reference to Exhibit 10.6 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on June 3, 2015 (SEC File No. 1-31993)).                      
|10.4.15 | Real Property Waiver dated May 29, 2015 between Nations Equipment Finance, LLC as administrative and collateral agent and Texas Sterling Construction Co. relating to 20810 Fernbush Ln., Houston, Texas (incorporated by reference to Exhibit 10.7 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on June 3, 2015 (SEC File No. 1-31993)).                     
|10.4.16 | Intercreditor Agreement dated as of May 29, 2015 among Nations Equipment Finance, LLC, as administrative and collateral agent, Nations Fund I, LLC, and Sterling Construction Company, Inc. and its wholly-owned subsidiaries (incorporated by reference to Exhibit 10.8 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on June 3, 2015 (SEC File No. 1-31993)).
|10.5.1# | Employment Agreement dated as of March 17, 2006 between Sterling Construction Company, Inc. and Roger M. Barzun (incorporated by reference to Exhibit 10.11 to Sterling Construction Company, Inc.'s Annual Report on Form 10-K/A for the year ended December 31, 2008, filed on March 16, 2009 (SEC File No. 1-31993)).                                                                   
|10.5.2# | Amendment dated January 18, 2012 of the Employment Agreement dated as of March 17, 2006 between Sterling Construction Company, Inc. and Roger M. Barzun (incorporated by reference to Exhibit 10.7.1 to Sterling Construction Company, Inc.'s Annual Report on Form 10-K filed on March 17, 2014 (SEC File No. 1-31993)).                                                                  
|10.8.1# | Employment Agreement dated as of September 25, 2013 between Sterling Construction Company, Inc. and Thomas R. Wright (incorporated by reference to Exhibit 10.1 to Sterling Construction Company, Inc.'s Quarterly Report on Form 10-Q for the quarter ended September 30, 2013, filed on November 8, 2013 (SEC File No. 1-31993)).                                                        
|10.8.2# | Amendment to the Employment Agreement of Thomas R. Wright dated September 26, 2014 (incorporated by reference to Exhibit 10.1 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on September 29, 2014 (SEC File No. 1-31993)).                                                                                                                                     
|10.8.3# | Separation & Release Agreement executed on July 3, 2015 between Thomas R. Wright and Sterling Construction Company, Inc. (incorporated by reference to Exhibit 10.1 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on July 7, 2015 (SEC File No. 1-31993)).                                                                                                     



Page 4






|10.8.4#   | Employment arrangement of Ronald A. Ballschmiede (incorporated by reference to the description contained in Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on November 12, 2015 (SEC File No. 1-31993)).                                                      
|--------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|10.9.1#   | Program Description — 2015 Short-Term Incentive Compensation Program & 2015 Long-Term Incentive Compensation Program (incorporated by reference to Exhibit 10.1 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on December 17, 2014 (SEC File No. 1-31993))
|10.9.2#   | Form of Long-Term Incentive Program Award Agreement (incorporated by reference to Exhibit 10.2 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on December 17, 2014 (SEC File No. 1-31993)).                                                                
|10.9.3#** | Amended form of Long-Term Incentive Program Award Agreement.                                                                                                                                                                                                                          
|10.10#    | Employment Agreement dated as of March 9, 2015 between Sterling Construction Company, Inc. and Paul J. Varello (incorporated by reference to Exhibit 10.10 to Sterling Construction Company, Inc.'s Annual Report on Form 10-K filed on March 16, 2015 (SEC File No. 1-31993)).       
|10.11#    | Program Description — 2016 Executive Incentive Compensation Program (incorporated by reference to Exhibit 10.1 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on February 26, 2016 (SEC File No. 1-31993))                                                 
|10.12#    | Form of 2016 Executive Incentive Compensation Program Restricted Stock Award Agreement (incorporated by reference to Exhibit 10.2 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on February 26, 2016 (SEC File No. 1-31993))                              
|10.13**   | Call Option Agreement, dated as of May 29, 2015, by and between Clinton W. Myers, an individual, Clinton Charles Myers, Trustee, and Sterling Construction Company, Inc.                                                                                                              
|10.13.1** | Amendment No. 1 to the Call Option Agreement dated as of May 29, 2015 by and between Clinton W. Meyers, an individual, Clinton Charles Meyers, Trustee, and Sterling Construction Company, Inc.                                                                                       
|10.14**   | Call Option Agreement, dated as of May 29, 2015, by and between Richard H. Buenting and Sterling Construction Company, Inc.                                                                                                                                                           
|10.15**   | Fourth Amended and Restated Operating Agreement of Road and Highway Builders, LLC dated as of October 19, 2015.                                                                                                                                                                       
|10.15.1** | Amendment No. 1 to Fourth Amended and Restated Operating Agreement of Road and Highway Builders, LLC dated as of November 28, 2015.                                                                                                                                                   
|10.16**   | Second Amended and Restated Limited Partnership Agreement of Myers & Sons Construction, L.P. dated as of November 19, 2015.                                                                                                                                                           
|10.17**   | Secured Revolving Promissory Note made by Sterling Construction Company, Inc. dated March 11, 2016 payable to Road and Highway Builders, LLC and Myers & Sons Construction, L.P.                                                                                                      
|10.18**   | Deed of Trust and Security Agreement dated March 11, 2016 between Texas Sterling Construction Co.; Road and Highway Builders, LLC; and Myers & Sons Construction, L.P. relating to 20800 Fernbush Lane, Houston, Texas.                                                               
|10.19**   | Deed of Trust and Security Agreement dated March 11, 2016 between Texas Sterling Construction Co.; Road and Highway Builders, LLC; and Myers & Sons Construction, L.P. relating to 5638 FM 1346, San Antonio, Texas.                                                                  



Page 5






|10.20** | Deed of Trust and Security Agreement dated March 11, 2016 between Texas Sterling Construction Co.; Road and Highway Builders, LLC; and Myers & Sons Construction, L.P. relating to St. Hedwig Road, San Antonio, Texas.                                                      
|------- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|10.21** | Deed of Trust and Security Agreement dated March 11, 2016 between Texas Sterling Construction Co.; Road and Highway Builders, LLC; and Myers & Sons Construction, L.P. relating to 3475 High River Road, Fort Worth, Texas.                                                  
|21      | Subsidiaries of Sterling Construction Company,
        Inc.:                                                                                                                                                                                                                 
|        |                                                                                                                                                                                                                                                                              
|        | Name                                                                                                                                                                                                                                                                         
|        | Texas Sterling Construction Co.                                                                                                                                                                                                                                              
|        | Texas Sterling – Banicki, JV LLC                                                                                                                                                                                                                                             
|        | Road and Highway Builders, LLC                                                                                                                                                                                                                                               
|        | Road and Highway Builders Inc.                                                                                                                                                                                                                                               
|        | RHB Properties, LLC                                                                                                                                                                                                                                                          
|        | Road and Highway Builders of California,
        Inc.                                                                                                                                                                                                                        
|        | Sterling Hawaii Asphalt, LLC                                                                                                                                                                                                                                                 
|        | Ralph L. Wadsworth Construction Company,
        LLC                                                                                                                                                                                                                         
|        | Ralph L. Wadsworth Construction Co. LP                                                                                                                                                                                                                                       
|        | J. Banicki Construction, Inc.                                                                                                                                                                                                                                                
|        | Myers & Sons Construction, L.P.                                                                                                                                                                                                                                              
|23.1*   | Consent of Grant Thornton LLP.                                                                                                                                                                                                                                               
|31.1**  | Certification of Paul J. Varello, Chief Executive Officer of Sterling Construction Company, Inc.                                                                                                                                                                             
|31.2**  | Certification of Ronald A. Ballschmiede, Executive Vice President & Chief Financial Officer of Sterling Construction Company, Inc.                                                                                                                                           
|32.1*   | Certification pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) of Paul J. Varello Chief Executive Officer, and Ronald A. Ballschmiede, Executive Vice President & Chief Financial Officer of Sterling Construction Company, Inc.
|95.1*   | Mine Safety Disclosure.                                                                                                                                                                                                                                                      
|101.INS | XBRL Instance Document                                                                                                                                                                                                                                                       
|101.SCH | XBRL Taxonomy Extension Schema Document                                                                                                                                                                                                                                      
|101.CAL | XBRL Extension Calculation Linkbase Document                                                                                                                                                                                                                                 
|101.DEF | XBRL Taxonomy Extension Definition LInkbase Document                                                                                                                                                                                                                         
|101.LAB | XBRL Taxonomy Extension Label Linkbase Document                                                                                                                                                                                                                              
|101.PRE | XBRL Taxonomy Extension Presentation Linkbase Document                                                                                                                                                                                                                       





#	Management contract or compensatory
plan or arrangement.



*	Filed with the Original Filing.



**	Filed with this Form 10-K/A.





Page 6




SIGNATURES



Pursuant to the requirements
of Section 13 or 15(d) 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: April 4, 2016 | By:                                
|                    |                                    
|                    |                                    
|                    |                                    













Page 7




Exhibit
Index



Explanatory Note



Prior to changing its name to Sterling
Construction Company, Inc. in November 2001, the Company’s name was Oakhurst Company, Inc. References in the following exhibit
list use the name of the Company in effect at the date of the exhibit.



|Number  | Exhibit Title                                                                                                                                                                                                                                                                                                                                                                                
|------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|2.1.1   | Purchase Agreement, dated as of December 3, 2009, by and among Kip Wadsworth, Ty Wadsworth, Con Wadsworth, Tod Wadsworth and Sterling Construction Company, Inc. (incorporated by reference to Exhibit 2.1 to Sterling Construction Company, Inc.'s Current Report on Form 8-K, filed on December 3, 2009 (SEC File No. 1-31993)).                                                           
|3.1     | Certificate of Incorporation of Sterling Construction Company, Inc. as amended through May 9, 2014 (incorporated by reference to Exhibit 3 to Sterling Construction Company, Inc.'s Current Report on Form 8-K, filed on May 13, 2014 (SEC File No. 1-31993)).                                                                                                                               
|3.2*    | Bylaws of Sterling Construction Company, Inc. as amended through March 11, 2016.                                                                                                                                                                                                                                                                                                             
|4.1     | Form of Common Stock Certificate of Sterling Construction Company, Inc. (incorporated by reference to Exhibit 4.5 to Sterling Construction Company, Inc.'s Form 8-A, filed on January 11, 2006 (SEC File No. 1-31993)).                                                                                                                                                                      
|10.1.1# | The Sterling Construction Company, Inc. Stock Incentive Plan as amended through May 9, 2014 (incorporated by reference to Exhibit 10.2 to Sterling Construction Company, Inc.'s. Current Report on Form 8-K, filed on May 13, 2014 (SEC File No. 1-31993)).                                                                                                                                  
|10.1.2# | 2014 Sterling Incentive Compensation Plan (incorporated by reference to Exhibit 10.1 to Sterling Construction Company, Inc.’s Current Report on Form 8-K, filed on May 13, 2014 (SEC File No. 1-31993)).                                                                                                                                                                                     
|10.2#   | Forms of Stock Option Agreement under the Oakhurst Company, Inc. 2001 Stock Incentive Plan (now known as The Sterling Construction Company, Inc. Stock Incentive Plan) (incorporated by reference to Exhibit 10.52 to Sterling Construction Company, Inc.'s Annual Report on Form 10-K for the year ended December 31, 2004, filed on March 29, 2005 (SEC File No. 1-31993)).                
|10.3*#  | Standard compensation arrangements for non-employee directors of Sterling Construction Company, Inc. adopted by the Board of Directors to be effective March 1, 2016.                                                                                                                                                                                                                        
|10.4.9  | Loan and Security Agreement dated as of May 29, 2015 between Nations Fund I, LLC, Nations Equipment Finance, LLC, as administrative and collateral agent, Sterling Construction Company, Inc. and its wholly-owned subsidiaries (incorporated by reference to Exhibit 10.1 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on June 3, 2015 (SEC File No. 1-31993)).
|10.4.10 | Term Loan Promissory Note dated May 29, 2015 in the amount of $20,000,000 (incorporated by reference to Exhibit 10.2 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on June 3, 2015 (SEC File No. 1-31993)).                                                                                                                                                      
|10.4.11 | Revolving Loan Promissory Note dated May 29, 2015 in the amount of $20,000,000 (incorporated by reference to Exhibit 10.3 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on June 3, 2015 (SEC File No. 1-31993)).                                                                                                                                                 



Page 8






|10.4.12 | Security Agreement dated as of May 29, 2015 between Nations Fund I, LLC, Nations Equipment Finance, LLC, as administrative and collateral agent, Road and Highway Builders, LLC, and Myers & Sons Construction, L.P. (incorporated by reference to Exhibit 10.4 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on June 3, 2015 (SEC File No. 1-31993)).         
|------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|10.4.13 | Real Property Waiver dated May 29, 2015 between Nations Equipment Finance, LLC as administrative and collateral agent, and Texas Sterling Construction Co. relating to 3475 High River Road, Fort Worth Texas (incorporated by reference to Exhibit 10.5 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on June 3, 2015 (SEC File No. 1-31993)).                
|10.4.14 | Real Property Waiver dated May 29, 2015 between Nations Equipment Finance, LLC as administrative and collateral agent, and Texas Sterling Construction Co. relating to 5638 FM 1346, San Antonio, Texas (incorporated by reference to Exhibit 10.6 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on June 3, 2015 (SEC File No. 1-31993)).                      
|10.4.15 | Real Property Waiver dated May 29, 2015 between Nations Equipment Finance, LLC as administrative and collateral agent and Texas Sterling Construction Co. relating to 20810 Fernbush Ln., Houston, Texas (incorporated by reference to Exhibit 10.7 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on June 3, 2015 (SEC File No. 1-31993)).                     
|10.4.16 | Intercreditor Agreement dated as of May 29, 2015 among Nations Equipment Finance, LLC, as administrative and collateral agent, Nations Fund I, LLC, and Sterling Construction Company, Inc. and its wholly-owned subsidiaries (incorporated by reference to Exhibit 10.8 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on June 3, 2015 (SEC File No. 1-31993)).
|10.5.1# | Employment Agreement dated as of March 17, 2006 between Sterling Construction Company, Inc. and Roger M. Barzun (incorporated by reference to Exhibit 10.11 to Sterling Construction Company, Inc.'s Annual Report on Form 10-K/A for the year ended December 31, 2008, filed on March 16, 2009 (SEC File No. 1-31993)).                                                                   
|10.5.2# | Amendment dated January 18, 2012 of the Employment Agreement dated as of March 17, 2006 between Sterling Construction Company, Inc. and Roger M. Barzun (incorporated by reference to Exhibit 10.7.1 to Sterling Construction Company, Inc.'s Annual Report on Form 10-K filed on March 17, 2014 (SEC File No. 1-31993)).                                                                  
|10.8.1# | Employment Agreement dated as of September 25, 2013 between Sterling Construction Company, Inc. and Thomas R. Wright (incorporated by reference to Exhibit 10.1 to Sterling Construction Company, Inc.'s Quarterly Report on Form 10-Q for the quarter ended September 30, 2013, filed on November 8, 2013 (SEC File No. 1-31993)).                                                        
|10.8.2# | Amendment to the Employment Agreement of Thomas R. Wright dated September 26, 2014 (incorporated by reference to Exhibit 10.1 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on September 29, 2014 (SEC File No. 1-31993)).                                                                                                                                     
|10.8.3# | Separation & Release Agreement executed on July 3, 2015 between Thomas R. Wright and Sterling Construction Company, Inc. (incorporated by reference to Exhibit 10.1 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on July 7, 2015 (SEC File No. 1-31993)).                                                                                                     



Page 9






|10.8.4#   | Employment arrangement of Ronald A. Ballschmiede (incorporated by reference to the description contained in Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on November 12, 2015 (SEC File No. 1-31993)).                                                      
|--------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|10.9.1#   | Program Description — 2015 Short-Term Incentive Compensation Program & 2015 Long-Term Incentive Compensation Program (incorporated by reference to Exhibit 10.1 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on December 17, 2014 (SEC File No. 1-31993))
|10.9.2#   | Form of Long-Term Incentive Program Award Agreement (incorporated by reference to Exhibit 10.2 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on December 17, 2014 (SEC File No. 1-31993)).                                                                
|10.9.3#** | Amended form of Long-Term Incentive Program Award Agreement.                                                                                                                                                                                                                          
|10.10#    | Employment Agreement dated as of March 9, 2015 between Sterling Construction Company, Inc. and Paul J. Varello (incorporated by reference to Exhibit 10.10 to Sterling Construction Company, Inc.'s Annual Report on Form 10-K filed on March 16, 2015 (SEC File No. 1-31993)).       
|10.11#    | Program Description — 2016 Executive Incentive Compensation Program (incorporated by reference to Exhibit 10.1 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on February 26, 2016 (SEC File No. 1-31993))                                                 
|10.12#    | Form of 2016 Executive Incentive Compensation Program Restricted Stock Award Agreement (incorporated by reference to Exhibit 10.2 to Sterling Construction Company, Inc.'s Current Report on Form 8-K filed on February 26, 2016 (SEC File No. 1-31993))                              
|10.13**   | Call Option Agreement, dated as of May 29, 2015, by and between Clinton W. Myers, an individual, Clinton Charles Myers, Trustee, and Sterling Construction Company, Inc.                                                                                                              
|10.13.1** | Amendment No. 1 to the Call Option Agreement dated as of May 29, 2015 by and between Clinton W. Meyers, an individual, Clinton Charles Meyers, Trustee, and Sterling Construction Company, Inc.                                                                                       
|10.14**   | Call Option Agreement, dated as of May 29, 2015, by and between Richard H. Buenting and Sterling Construction Company, Inc.                                                                                                                                                           
|10.15**   | Fourth Amended and Restated Operating Agreement of Road and Highway Builders, LLC dated as of October 19, 2015.                                                                                                                                                                       
|10.15.1** | Amendment No. 1 to Fourth Amended and Restated Operating Agreement of Road and Highway Builders, LLC dated as of November 28, 2015.                                                                                                                                                   
|10.16**   | Second Amended and Restated Limited Partnership Agreement of Myers & Sons Construction, L.P. dated as of November 19, 2015.                                                                                                                                                           
|10.17**   | Secured Revolving Promissory Note made by Sterling Construction Company, Inc. dated March 11, 2016 payable to Road and Highway Builders, LLC and Myers & Sons Construction, L.P.                                                                                                      
|10.18**   | Deed of Trust and Security Agreement dated March 11, 2016 between Texas Sterling Construction Co.; Road and Highway Builders, LLC; and Myers & Sons Construction, L.P. relating to 20800 Fernbush Lane, Houston, Texas.                                                               
|10.19**   | Deed of Trust and Security Agreement dated March 11, 2016 between Texas Sterling Construction Co.; Road and Highway Builders, LLC; and Myers & Sons Construction, L.P. relating to 5638 FM 1346, San Antonio, Texas.                                                                  



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|10.20** | Deed of Trust and Security Agreement dated March 11, 2016 between Texas Sterling Construction Co.; Road and Highway Builders, LLC; and Myers & Sons Construction, L.P. relating to St. Hedwig Road, San Antonio, Texas.                                                      
|------- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|10.21** | Deed of Trust and Security Agreement dated March 11, 2016 between Texas Sterling Construction Co.; Road and Highway Builders, LLC; and Myers & Sons Construction, L.P. relating to 3475 High River Road, Fort Worth, Texas.                                                  
|21      | Subsidiaries of Sterling Construction Company,
        Inc.:                                                                                                                                                                                                                 
|        |                                                                                                                                                                                                                                                                              
|        | Name                                                                                                                                                                                                                                                                         
|        | Texas Sterling Construction Co.                                                                                                                                                                                                                                              
|        | Texas Sterling – Banicki, JV LLC                                                                                                                                                                                                                                             
|        | Road and Highway Builders, LLC                                                                                                                                                                                                                                               
|        | Road and Highway Builders Inc.                                                                                                                                                                                                                                               
|        | RHB Properties, LLC                                                                                                                                                                                                                                                          
|        | Road and Highway Builders of California,
        Inc.                                                                                                                                                                                                                        
|        | Sterling Hawaii Asphalt, LLC                                                                                                                                                                                                                                                 
|        | Ralph L. Wadsworth Construction Company,
        LLC                                                                                                                                                                                                                         
|        | Ralph L. Wadsworth Construction Co. LP                                                                                                                                                                                                                                       
|        | J. Banicki Construction, Inc.                                                                                                                                                                                                                                                
|        | Myers & Sons Construction, L.P.                                                                                                                                                                                                                                              
|23.1*   | Consent of Grant Thornton LLP.                                                                                                                                                                                                                                               
|31.1**  | Certification of Paul J. Varello, Chief Executive Officer of Sterling Construction Company, Inc.                                                                                                                                                                             
|31.2**  | Certification of Ronald A. Ballschmiede, Executive Vice President & Chief Financial Officer of Sterling Construction Company, Inc.                                                                                                                                           
|32.1*   | Certification pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) of Paul J. Varello Chief Executive Officer, and Ronald A. Ballschmiede, Executive Vice President & Chief Financial Officer of Sterling Construction Company, Inc.
|95.1*   | Mine Safety Disclosure.                                                                                                                                                                                                                                                      
|101.INS | XBRL Instance Document                                                                                                                                                                                                                                                       
|101.SCH | XBRL Taxonomy Extension Schema Document                                                                                                                                                                                                                                      
|101.CAL | XBRL Extension Calculation Linkbase Document                                                                                                                                                                                                                                 
|101.DEF | XBRL Taxonomy Extension Definition LInkbase Document                                                                                                                                                                                                                         
|101.LAB | XBRL Taxonomy Extension Label Linkbase Document                                                                                                                                                                                                                              
|101.PRE | XBRL Taxonomy Extension Presentation Linkbase Document                                                                                                                                                                                                                       



#	Management contract or compensatory
plan or arrangement.

*	Filed with the Original Filing.



**	Filed with this Form 10-K/A.





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