Current letting schedule

For the convenience of vendors seeking business opportunities as offered by the Iowa DOT, this site contains bid opportunities for items such as facility projects, equipment, supplies and services. There are two types of bid solicitation. Method used depends on the expected cost of purchase.
  • 1. Formal
    A formal, sealed bid procedure is used for purchase of goods and/or services exceeding $50,000.00.

  • 2. Informal
    An Informal bid procedure is used for purchase of goods and/or services less than $50,000.00.

  • Request for Information
    (RFI) may be sought by the Department at any time for purposes of seeking industry knowledge of products or services.
Pertinent information regarding the bid solicitation along with links to all associated presented below in three different categories; Formal, Informal or RFI.

Note: If downloading from the internet the vendor must complete and return the Download Acknowledgement Form by clicking this link. This sheet must be emailed or faxed to the listed purchasing agent for the RFP. This sheet informs the agent of a downloaded version and once received by the Iowa DOT, the vendor is added to the plan holder list to ensure notice of addendums.

Please use the furnished mailing label, or label the bid response as  “Iowa Department of Transportation, proposal number & letting date” on the outside of the return envelope.

For your convenience, the following link will route you directly to State of Iowa, Information Security Office website.

Terms and conditions

All bid proposals are subject to terms and conditions as required.
PDF file Formal Standard Terms and Conditions

PDF file Informal Standard Terms and Conditions


Bid Proposal No. Bid Proposal Description Letting Date Proposal Guaranty Required Email Agent
12695 Calcium Chloride in Bags for FY 2015 8/27/2014 None Rhonda Ruark

Liquid Calcium Chloride for FY 2015

Addendum 1

8/27/2014 None Rhonda Ruark

IDPS Fleet and Supply Building Rebuild

Option A Specifications

Option A Plans

Option B Specifications

Option B Plans

Pre-bid Vendor Conference: Recommended, but not required

There will be a pre-bid vendor conference on August 25, 2014 at 10:00 A.M. at the project location site: 30 NE 48th Place, Des Moines, IA 


9/3/2014 None Mary Zimmerman
12694 Salt Brine Parts and Pumps 9/3/2014 None Jean Gustafson

Ames Complex Chiller Replacement

Addendum 1

Prebid Vendor Conference: Required

There will be a mandatory pre-bid vendor conference on August 26, 2014 at 11:00 A.M. at the Iowa Department of Transportation Ames Complex


9/10/2014 $10,000.00 Mary Zimmerman

2015 Model Year Trucks, Vans and Suv's Pre-Bid Meeting Invitation.

The Factory Rep and Dealers Pre-Bidder’s Conference will be held from 10:00 A.M. – 1:00 P.M.,
September 11, 2014, at Iowa Department of Transportation Main Complex located at 800 Lincoln Way in Ames, IA 50010.

9/11/2014 N/A Zachary Gillen


Bid Proposal No. Bid Proposal Description Letting Date Proposal Guaranty Required Email Agent
12757 Cleaning Services for Waterloo DL Station 8/28/2014 None Mary Zimmerman

Motor Pool Radiant Heat Replacement, Ames


8/29/2014 None Mary Zimmerman

Young Driver Video Production

Questions and Responses Set 1

9/3/2014 None Laurie Hoing

Water Drainage System for Administration Basement

It is required that prospective bidders attend a pre-bid meeting on August 26, 2014 at 1:30 P.M at the Ames Complex, in First Floor South Administration Conference Room, 800 Lincoln Way, IA.

9/5/2014 None Mary Zimmerman


Cedar Rapids and Sioux City Driver License Bollard Installation

Sioux City Specifications

Sioux City Plans

Cedar Rapids Plans

Cedar Rapids Bollard

Questions and Responses Set 1


9/10/2014 None Mary Zimmerman
12799 Construction of a Pole Building for Oakland 9/12/2014 None Mary Zimmerman
12751 Overhead Door Replacement for Donnellson and West Burlington 9/12/2014 None Mary Zimmerman


Bid Proposal No. Bid Proposal Description Letting Date Proposal Guaranty Required Email Agent
12709 Asset Management Software Solution 9/17/2014 N/A

Laurie Hoing


Notice to all vendors:
All bid solicitations are subject to change. It is the responsibility of the vendor to check this Web site for any future addendums, questions, revisions, etc., prior to the bid opening. Failure to do so will be the responsibility of the vendor.

Please contact the listed agent above for any questions.
For more information about the purchasing agents and their assigned commodities, please click here.

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This page is maintained by Laura Linduski, Iowa DOT Purchasing