NOTICE TO BIDDERS
STATE OF IOWA - Sealed bids will be received by the Iowa Department of Transportation (DOT), Office of Contracts, 800 Lincoln Way, Ames, Iowa 50010 on the upcoming dates and times for the next six months for various items of construction and maintenance work.
May 19, 2026 10:00 a.m. CDT
June 9, 2026 Special Letting 10:00 a.m. CDT
June 16, 2026 10:00 a.m. CDT
July 21, 2026 10:00 a.m. CDT
July 28, 2026 Special Letting 10:00 a.m. CDT
August 18, 2026 10:00 a.m. CDT
September 15, 2026 10:00 a.m. CDT
October 20, 2026 10:00 a.m. CDT
NOTICE TO BIDDERS
Plans, specifications, and proposal forms for the work may be seen at the Office of Contracts until noon on the day previous to the letting.
A listing of projects open for bids and details for each project will be available to potential bidders and suppliers three weeks prior to the letting date at www.bidx.com/ia/main or www.iowadot.gov or by calling the Office of Contracts at 515-239-1414.
The Iowa DOT uses the Bid Express website – www.bidx.com - as the official repository for bid submittal. The Iowa DOT will ensure this repository is available for a two-hour period prior to the deadline for submission of bids. If there is an interruption of the bid submittal system, or for other reasons as necessary, the Iowa DOT may delay the deadline for bid submissions to allow potential bidders to submit bids. Instructions will be communicated to potential bidders via the Bid Express agency notifications page. The official bid submission deadline is the cut-off date and time listed on Bid Express for a given letting. Opening and reading of the bids will be performed by the Contracts and Specifications Bureau one half hour after the bid deadline on the day bids are to be received, unless otherwise specified by the Iowa DOT. Unless otherwise specified, a bidder shall submit a proposal as per Article 1102.09 of the Standard Specifications. Proposals received after the bid deadline will not be read. Proposals containing any reservations not provided for in the forms furnished will be rejected. The Iowa DOT reserves the right to waive technicalities and reject any or all bids.
Unless otherwise specified, a bidder must submit a proposal guaranty/bid bond with each bid as per Article 1102.11 of the Standard Specifications.
Per Iowa Code section 423.3 (80), the contracting authority will issue an exemption certificate for the purchase or use of building materials, supplies and
equipment used in the performance of the construction contract. Failure to execute a contract and file an acceptable performance bond and certificate of insurance within 30 days of the approval date for awarding the contract will be just and sufficient cause for the denial of the award and forfeiture of the proposal guaranty. The Iowa DOT (or other approved contracting authority), in accordance with the provisions of Title VI of the Civil Rights Act of 1964 (78 Stat. 252, 42 U.S.C. §§ 2000d to 2000d-4) and the Regulations, hereby notifies all bidders that it will affirmatively ensure that for any contract entered into pursuant to this advertisement, disadvantaged business enterprises will be afforded full and fair opportunity to submit bids in response to this invitation and will not be discriminated against on the grounds of race, color, or national origin in consideration for an award.
On federal-aid projects, where disadvantaged business enterprise (DBE) goals have been established, the bidder is required to complete and submit form 102115 with the bid documents. On all projects without DBE goals, the contractor must show that affirmative action has been made to seek out and consider DBEs as potential subcontractors. Some projects may be listed in multiple proposals (as an individual project or part of a combined package of projects). The contracting authority will determine which combination of proposals produce the lowest bid for these projects. Minimum wage rates for all federal-aid projects have been predetermined by the U.S. Secretary of Labor and are set forth in the specifications. However, this does not apply to projects off the federal-aid highway system. All federal-aid projects are subject to the Contract Work Hours Standards Act, as amended (title I of Pub. L. 87-581, Aug. 13, 1962, 75 Stat.357) and implementing regulations. By virtue of statutory authority, a preference will be given to products and provisions grown and coal produced within Iowa, and also, a resident bidder shall be allowed a preference against a nonresident bidder from a state or foreign country which gives or requires a preference to bidders from that state or foreign country both on projects in which there are no federal funds involved.
Iowa Department of Transportation. Office of Contracts Telephone: 515-239-1414
