Current letting schedule

The current letting schedule provides the list of current bid opportunities made available by the Purchasing Section of the Iowa DOT. This site contains bid opportunities for facility improvement projects, miscellaneous large and small equipment, vehicles miscellaneous goods and services. There are two types of bid solicitation. The method used is determined by Iowa Administrative Code based on the cost of purchase as defined herein.
  • 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.

All correspondence, documents, addendums or other pertinent information will be posted below for each bid opportunity. Bidders will be required to visit this website periodically fo all updates. This information will no longer be sent to respective bidders once the bid proposal has been posted.

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

Construction projects

The Iowa DOT's Purchasing Section will no longer provide plan holders lists of potential prime contractors. Sets of plans and specifications for construction projects are now attached to the bid opportunity located on this website. To the fullest extent possible, plan rooms will be utilized statewide for bidders to have the ability to print bid proposals, plans and specifications. Click here for a list of planrooms. Potential bidders will not be made available prior to the bid opening for projects.

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


Request for Bid (RFB)

Bid Proposal No. Bid Proposal Description Response Due Date Bid Bond Required (Y/N) Email Agent

Filters: Air, Coolant, Fuel, Hydraulic, Oil, Transmission & Misc.

Addendum 1

Addendum 2

8/17/2016 N Laura Linduski
RFB17238 Gyratory Compactors and Installation 8/22/2016 N Jean Gustafson

Alton DOT Maintenance Facility Reclaim Water Connection


8/26/2016 N Jody McNaughton

Transmission Fluids

8/31/2016 N Jean Gustafson

Pipe and Tank Relocation and OH Door Panel Replacements at Independence Garage

9/14/2016 N Rhonda Ruark

Hydraulic Cylinders

Addendum 1

9/14/2016 N Jean Gustafson


Request for Proposal (RFP)

Proposal No. Proposal Description Response Due Date Bid Bond Required (Y/N) Email Agent

Automated Driver's License Knowledge Testing System

Enterprise Security Standards as mentioned in RFP section 3.8.1 and 3.13

Questions and Responses Set 1

8/15/2016 N Carrie May

Adaptive Signal Control Technology for Waterloo

Addendum 1

8/31/2016 N Zach Gillen


Proposal No. Proposal Description Response Due Date Bid Bond Required (Y/N) Email Agent

Fabric cover replacement for hoop building at Shenandoah


8/11/2016 N Rhonda Ruark

Passage Door Replacements at Latimer

8/11/2016 N Rhonda Ruark

Door replacement at DL station in Ottumwa

Addendum 1

8/16/2016 N Rhonda Ruark
RFB16824 Welding Rod, Wire & Accessories 8/24/2016 N Laura Linduski

Tile Project Dallas County

8/25/2016 N Rhonda Ruark

2 Tile Crossings in Webster County

Addendum 1

8/31/2016 N

Rhonda Ruark


RFB171080 Wood Sign Posts FY Fall 2016 9/7/2016 N Laura Linduski


RFI No. Description Due Date Email Agent


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.

Purchasing Home | Contact Us | State of Iowa
This page is maintained by Laura Linduski, Iowa DOT Purchasing