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 Letting Date Bid Bond Required Email Agent

Ames DOT Warehouse Dock Expansion


Addendum 1

Addendum 2

Addendum 3

Addendum 3 Plans

Questions and Responses Set 1 and Set 2

Addendum 4

Addendum 5

Questions and Responses Set 3

Questions and Responses Set 4

Addendum 6

Addendum 7

Addendum 8

Addendum 9

Addendum 9 Plans

Questions and Responses Set 5


* Revised Date: February 17, 2016*

$7,500.00 Jody McNaughton

Lighting Installation for 6 Iowa DOT Maintenance Facilities in various locations throughout the State


2/17/2016 None Jody McNaughton

Miscellaneous Vehicle Use Items

2/17/2016 None Jean Gustafson

Tires and Tubes

2/17/2016 None Jean Gustafson
RFB15846 Native Grasses and Wildflower Seeds for DOT Projects 2/24/2016 None Rhonda Ruark

Alton Maintenance Facility Reclaim Water Addition


Addendum 1

2/24/2016 None Jody McNaughton


Request for Proposal (RFP)

Bid Proposal No. Bid Proposal Description Letting Date Bid Bond Required Email Agent

Storm Water Inspection Management Software

3/2/2016 None Jean Gustafson


Bid Proposal No. Bid Proposal Description Letting Date Bid Bond Required Email Agent

Removal of Trees Within the City of Calmar

2/10/2016 $1,000.00 Rhonda Ruark

Galvanized, Cables, Clamps, High Test and Transfer Chain

Addendum 1

2/10/2016 None Laura Linduski

Overhead door and opener

Addendum 1

Addendum 2


*Revised Date: 2/12/2016*

None Jody McNaughton

Ames Materials Lab-Replace 2 VAV Boxes for Analytical Lab


2/15/2016 None Laura Linduski
RFB15972 Tile Boring Projects 2/24/2016 None Laura Linduski
RFB15973 District 4 Repairs 2/24/2016 None Laura Linduski
RFB15580 Passage Door Replacements for 6 Locations 2/24/2016 None Laura Linduski


Bid Proposal No. Bid Proposal Description Due Date Bid Bond Required 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