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The Office of Contracts is at the focal point where all of the preletting activities converge so contracting can take place for construction.

The Office of Contracts is responsible for two major functions of the Iowa Department of Transportation:
  1. Estimating and contract letting.
  2. Bid review, monitoring and collusion detection.
IconUpcoming advertising timelines
The Iowa Department of Transportation will be letting contracts for major projects on several corridors. Different advertisement techniques will be used to address the unique needs of these different projects.

ATTENTION: Beginning with the July 15, 2014 letting (available in June), the Office of Contracts will no longer accept paper bids on any proposals.

IconPlans and proposals for the current letting

IconNew contractor Information

Prime contractor prequalification
IconNOTICE: A Bidder Status Form must be on file in order to be authorized to bid on any contract let by the DOT. View details (.docx).

Effective with the Jan. 21, 2015 letting
IconBid Bond Changes
Effective with the April 21, 2015 letting

Office of Contracts
Iowa Department of Transportation
800 Lincoln Way
Ames, Iowa 50010
Phone: 515-239-1414