Michiganders who want to know the latest condition of bridges across the state can now get those answers at a new Michigan Department of Transportation (MDOT) dashboard.
MDOT has updated a more limited version of the Michigan Bridge Conditions dashboard that provides detailed data on more than 11,000 bridges in Michigan.
The website rates bridges on state and local road systems as good, fair or poor. An interactive map enables users to see the color-coded status for each span.
Users can sort and view data by a variety of criteria, including bridge rating, ownership or geographical area. Zooming in on a particular area of the map and clicking on the icon for a bridge provides more details about that structure.
“We’re very excited about the new dashboard,” said Matt Chynoweth, head of the MDOT Bureau of Bridges and Structures. “This supports both the governor’s and state transportation director’s objectives of transparency in government. It’s a great tool, allowing the public to easily look into the condition of any bridge, MDOT or locally owned.”
The data on each bridge is the up-to-date condition of the roadway, giving users important information they can use instead of a snapshot in time that is not frequently updated.
Federal law defines a bridge as a structure carrying traffic with a span greater than 20 feet. The law also requires that all bridges be inspected at least every two years to monitor and report condition ratings. These ratings are based on a 0-9 scale and are assigned to each culvert and each deck, superstructure and substructure of each bridge. Bridges rated from 7 to 9 are designated “good,” while ratings of 5 and 6 are “fair,” and ratings from 0 to 4 are in the “poor” category.
Condition ratings are used to identify preventive maintenance needs and to determine funding priorities for rehabilitation and replacement projects.
Click here to access the dashboard.