Exhibit 99.1

  GRANITE CONSTRUCTION EXPECTS TO REPORT STRONGER-THAN-ANTICIPATED FISCAL YEAR
                             2005 FINANCIAL RESULTS

    WATSONVILLE, Calif., Feb. 3 /PRNewswire-FirstCall/ -- Granite Construction
Incorporated (NYSE: GVA) today announced that it expects earnings for the fiscal
year ended December 31, 2005 to be in the range of $1.95 to $2.00 per diluted
share. The Company's previously issued guidance, dated October 26, 2005, was in
the range of $1.55 to $1.60 per diluted share. The improved results are
primarily driven by continued strong demand for Branch Division construction
services and materials, as well as the ability to work late into the fourth
quarter due to mild winter weather conditions in the West.

    The Company will report its fourth quarter and year-end 2005 results after
the close of market on February 15, 2006 with a conference call and Webcast on
February 16, 2006 at 11:00 am EST.

    Granite, a member of the S&P 400 Midcap Index, the Domini 400 Social Index
and the Russell 2000, is one of the nation's largest diversified heavy civil
contractors and construction materials producers. Granite Construction serves
public and private sector clients through its offices nationwide. For more
information about the company, please visit their website at
www.graniteconstruction.com.

    This news release contains forward-looking statements, within the meaning of
Section 27A of the Securities Act of 1933 and Section 21E of the Securities
Exchange Act of 1934, with respect to Granite's operating performance. These
results are based upon a number of estimates and assumptions, including those
mentioned within this news release. Such estimates are also based upon internal
forecasts, the accuracy of project estimates and legal proceedings and claims
(including environmental matters). Although the Company believes its
expectations are based on reasonable assumptions, it cannot assure the
expectations reflected herein will be achieved. This forward-looking information
may prove to be inaccurate and actual results may differ significantly from
those anticipated if one or more of the underlying assumptions or expectations
proves to be inaccurate or is unrealized of if other unexpected conditions or
events occur. You should not place undue reliance on this forward-looking
information which speak only as of the date of this news release. Other factors
and risks affecting the Company are contained in Granite's Form 10-K for the
year ended December 31, 2004 and more recently its Form 10-Q for the quarter
ended September 30, 2005. The Company undertakes no obligation to revise or
update publicly any forward-looking statements made in this news release to
reflect events or circumstances appearing after the date of this release.

SOURCE  Granite Construction Incorporated
    -0-                             02/03/2006
    /CONTACT:  Jacqueline Underdown, Investor Relations of Granite
Construction Incorporated, +1-831-761-4741/
    /Web site:  http://www.graniteconstruction.com /