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SCAM ALERT:  A current text message smishing scam claims recipients owe money associated with traffic tickets, tolls, and other fines.  These are not legitimate messages from the Illinois Department of Transportation.  If you receive a message report it to the Federal Trade Commission and/or the FBI’s Internet Crime Complaint Center.

Illinois Department of Transportation

Approved Labs

IDOT conducts specialized testing on MSE Retaining Wall Backfill, but also approves external laboratories to perform the prescreening tests on its behalf.  These external laboratories are shown on the Approved List of Laboratories to Perform Resistivity Tests. 

If you would like to become an approved lab please contact the department for additional instructions.

Heather Shoup
(217) 785-9972
Heather.Shoup@illinois.gov
Central Office Geotechnical Engineer
Bureau of Materials 
Office of Highways Project Implementation

 

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Illinois Department of
Transportation
Hanley Building
2300 S. Dirksen Parkway
Springfield, IL 62764

(217) 782-7820 or
TTY (866) 273-3681

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