LIMITED POWER OF ATTORNEY
FOR SECTION 16(a) REPORTING

	KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned
 hereby makes, constitutes and appoints James H. Roberts, Richard
 A. Watts and Betty Kwong, and each of them, as the undersigned?s
 true and lawful attorney-in-fact (the ?Attorney-in Fact?), with
 full power of substitution and re-substitution, each with the power
 to act alone for the undersigned and in the undersigned?s name,
 place and stead, in any and all capacities to:

	1.	prepare, execute and file with the Securities and
 Exchange Commission, any national securities exchange or securities
 quotation system and Granite Construction Incorporated (the ?Company?)
 any and all reports (including any amendment thereto) of the
 undersigned required or considered advisable under Section 16(a)
 of the Securities Exchange Act of 1934 (the ?Exchange Act?) and the
 rules and regulations thereunder, with respect to the equity
 securities of the Company, including Forms 3, 4 and 5; and

	2.	obtain, as the undersigned?s representative and on
 the undersigned?s behalf, information regarding transactions in the
 Company?s equity securities from any third party, including the
 Company and any brokers, dealers, employee benefit plan administrators
 and trustees, and the undersigned hereby authorizes any such third
 party to release any such information to the Attorney-in-Fact.

	The undersigned acknowledges that:

	1.	this Limited Power of Attorney authorizes, but does
 not require, the Attorney-in-Fact to act at his or her discretion
 on information provided to such Attorney-in-Fact without independent
 verification of such information;

	2.	any documents prepared or executed by the Attorney-
in-Fact on behalf of the undersigned pursuant to this Limited Power
 of Attorney will be in such form and will contain such information
 as the Attorney-in-Fact, in his or her discretion, deems necessary
 or desirable;

	3.	neither the Company nor the Attorney-in-Fact assumes
 any liability for the undersigned?s responsibility to comply with
 the requirements of Section 16 of the Exchange Act, any liability
 of the undersigned for any failure to comply with such requirements,
 or any liability of the undersigned for disgorgement of profits
 under Section 16(b) of the Exchange Act; and

	4.	this Limited Power of Attorney does not relieve the
 undersigned from responsibility for compliance with the undersigned?s
 obligations under Section 16 of the Exchange Act, including, without,
 limitation, the reporting requirements under Section 16(a) of the
 Exchange Act.

	The undersigned hereby grants to the Attorney-in-Fact full
 power and authority to do and perform each and every act and thing
 requisite, necessary or convenient to be done in connection with
 the foregoing, as fully, to all intents and purposes, as the
 undersigned might or could do in person, hereby ratifying and
confirming all that the Attorney-in-Fact, or his or her substitute
 or substitutes, shall lawfully do or cause to be done by authority
 of this Limited Power of Attorney.

	The execution by the undersigned of this Limited Power of
 Attorney hereby expressly revokes and terminates any powers of
 attorney previously granted by the undersigned with respect to
 the preparation, execution and filing of reports of the undersigned
 under Section 16(a) of the Exchange Act and the rules and regulations
 thereunder with respect to the equity securities of the Company.
  This Limited Power of Attorney shall remain in full force and
 effect until the undersigned is no longer required to file Forms
 4 or 5 with respect to the undersigned?s transactions in equity
 securities of the Company, unless earlier revoked by the undersigned
 in a signed writing delivered to the Attorney-in-Fact.

	This Limited Power of Attorney shall be governed and
 construed in accordance the laws of the State of California without
 regard to conflict-of-law principles.

	IN WITNESS WHEREOF, the undersigned has executed this
 Limited Power of Attorney as of this 8th day of February 2017.


Signature:	/s/ Celeste B. Mastin

Printed Name:  Celeste B. Mastin