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Official State Highway Map

The latest edition of one of the state's most popular publications, the state highway map, is hot off the press and available to the public at no charge.

Improve I-70 Boone County

I-70 is a vital lifeline for moving people, goods, and information across Missouri and beyond. This interstate was constructed more than 50 years ago, and with the availability of additional federal and state funding, now is the time to make it fully...

Districts Impacted
Central
Counties Impacted
Boone
Route Impacted
63
70
Planning Phase

Maps

The Missouri Department of Transportation provides a numerous amount of maps to assist customers with transportation-related inquiries.

St. Louis Work Zones Aug. 7- Aug. 13

08/06/2025

ST. LOUIS —Crews with the Improve I-70 Warrenton to Wentzville Project will be closing the eastbound Interstate 70 exit ramp at the Foristell interchange at 9 p.m., Friday, August 8. The exit ramp is expected to reopen by 9 a.m., Saturday, August 9...

Missouri's High Priority Unfunded Needs

Missouri’s transportation system is a tremendous asset to the citizens of Missouri. The system consists of 33,811 miles of roads and 10,392 bridges, both of which rank among the largest for any state in the nation. The Missouri Department of Transportati...

Policies, Lists and Specifications by Product Types

This page links "Types of Products" to related Engineering Policy Guide sections, lists of MoDOT's approved or pre-qualified products, and Specifications.  Some product types are not listed because MoDOT accepts them based on performanc...