State Bridge Health
Percent of State-owned bridges in good physical condition. A bridge (or 20-foot long or longer culvert) is in good condition if all its National Bridge Inventory (NBI) conditions (deck, superstructure, and substructure) are at a 7, 8, or 9.
Locally-Owned Bridge Health
Percent of county, city, township owned bridges in good physical condition. A bridge (or 20-foot long or longer culvert) is in good condition if all its National Bridge Inventory (NBI) conditions (deck, superstructure, and substructure) are at a 7, 8, or 9.
Summer Road & Bridge Maintenance
Percentage of planned summer activities completed year to date.
Pavement Health
Percentage of state-owned pavement miles in good condition based on pavement smoothness. Good condition is defined as any pavement with an International Roughness Index (IRI) less than 100 inches per mile, as measured by a pavement management van with a suite of laser and optical sensors.
Color Definitions
- Poor performance (i.e. not meeting target).
- Good performance, but at risk of falling below target.
- Good performance.
- Information only; no target has been set or the target only applies to the end of the year.
