Approved products lists

Construction equipment under bridge

​​​​​​​​​​​​​​​​​​Lists of products and materials pre-qualified for use on Wisconsin Department of Transportation (WisDOT) projects are compiled and maintained by the Division of Transportation System Development (DTSD). Generally, material pre-qualification serves as part of DTSD’s Quality Verification activities under Title 23 CFR 637, and Section 106​ of the WisDOT Standard Specifications for Highway and Bridge Construction (Standard Spec).​

Applicable pre-qualification activities include ​physical and chemical testing, fabrication plant inspections, and evaluation of product​ design data. These activities, as well as administrative function of pre-qualification, vary among products according to specific provisions contained in the Standard Spec or in the contract documents. Further information about materials administration can be found in​ Chapter 8 of the WisDOT Construction and Materials Manual.

Pre-qualification or approval doe​s not ​constitute acceptance of the work under the contract. All pre-qualified materials are subject to inspection and/or testing from time of delivery until acceptance. Certifications of compliance or certified reports of test as to material properties may be requested by project staff per contractual ​acceptance procedures, or at the discretion of the engineer. Non-conforming materials are subject to rejection or price adjustment.

Contact information for each of the product categories is listed on the pages for the respective materials and sources. Use that contact for information regarding pre-qualification for specific materials.

These lists are updated as necessary. Inquiries about publication, access, prior editions of lists, or information about discontinued products should be directed to the contact below.

Aggregate Reports

Portland Cement Concrete

Asphalt Concrete

Nuclear Density Testing


Drainage (See "Precast Concrete Fabricators" below for concrete pipe and structures)

Erosion Control


Structure Painting Systems

Precast Concrete and Masonry

Roadway Appurtenances

​​Traffic Barriers

Signing and Marking



​Ride Quality​

​​​​Questions about the content of this page:


Last modified: June 21​​​​​​​​​, 2022​