LANSING, MI-- The Michigan Department of Transportation is again updating information on the MDOT web site about the safety of the state’s highway bridges.
MDOT has posted bridge safety reports for 4,406 bridges online since August 2007. State bridge information can be downloaded by route number and/or county, and is current as of June 29. Only highway bridges greater than 20 feet in length are included. Ratings for pedestrian, railroad and locally owned bridges are not included.
MDOT will update bridge condition information on the web four times a year. National Bridge Inspection Standards require MDOT to inspect bridges every two years.
The Mackinac, International, and Blue Water bridges are inspected annually, exceeding federal requirements. The three bridges are managed by bridge authorities, and their ratings are not included in the list MDOT has posted to the web.
The bridge safety reports are available at www.michigan.gov/highwaybridgereport