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Highway Bridge Safety
MDOT updates highway bridge safety Web site
Bridges carrying I-96 and the M-6 ramps over the Thornapple River in  Kent County.

These bridges, over the Thornapple River in Kent County, are rated "very good" to "excellent condition."

June 13, 2008 -- State Transportation Director Kirk T. Steudle today announced that the Michigan Department of Transportation (MDOT) has again updated information about the safety of 4,400 state highway bridges. This is the third time MDOT has made bridge safety information available on the Web.

"This update reflects MDOT's ongoing commitment to providing Michigan residents with quarterly reports about state-owned bridges. Citizens can be assured that Michigan's bridges are carefully inspected and well maintained," said Steudle.

Download the report

• Highway Bridge Report by county - May 15, 2008 PDF icon

• Highway Bridge Report by route - May 15, 2008 PDF icon

• Which bridges are included in the report?


Terms and Definitions

• Structurally deficient and functionally obsolete

• National Bridge Inventory rating scale

• Bridge structural elements diagram

• NHS (National Highway System)


Related links

• U.S. Bridge Information
Definitions, statistics, funding information and frequently asked questions about highway bridge safety nationwide. Website created by the American Association of State Highway and Transportation Officials (AASHTO).

• 2008-2012 Five Year Road and Bridge Program

• Director's Testimony to U.S. House and Senate on the Condition of the Nation's Bridges




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