Focus areas include testing, acceptance and approval for embankments, foundations, mechanically stabilized earth walls, modification of soils, and soil stabilization. Other focus areas include calibration, maintenance, leak testing, and repair/modification of nuclear density and asphalt content gauges.
Clicking a hot link below will take you directly to the qualified list for the material/product referenced in the title.
Below you will find information regarding the process and how to get materials approved.
Clicking a hot link below will take you directly to the policy memorandum with specific information explaining the process to become a producer/supplier for the material listed in the title.
Clicking a hot link below will take you directly to the test procedure listed in the title. In order for these materials to be approved/qualified they will be tested to the requirements listed in the procedure.
Clicking a hot link below will take you directly to the form listed in the title. These forms are provided as tools to ensure that the correct data is supplied to IDOT when submitting samples.
Below are reference materials to assist in getting materials approved and IDOT guidelines.
For information on geotechnical design guides and spreadsheet for structures, please navigate to the Consultant Resources webpage where they can be found in the Foundations & Geotechnical drop-down listings located about half-way down the “Specific Scope of Services” list under the Bridges & Structures tab.
There is currently no material specific information
IDOT conducts specialized testing on MSE Retaining Wall Backfill, but also approves external laboratories external laboratories to perform the prescreening tests on its behalf.
If you would like to become an approved lab please contact the department for additional instructions.
Central Office Geotechnical Engineer
Bureau of Materials
Office of Highways Project Implementation