Leer Road over N Thunder Bay River

Presque Isle County, Michigan · rated Good in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

• Leer Road over N Thunder Bay River in Presque Isle County, Michigan, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
• Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
• It was built in 1968, making it 57 years old at the 2025 inventory.
• It carries about 610 vehicles a day (traffic count year 2007).
• Its listed owner is the county highway agency.
• It is one of 16 of the 37 inventoried bridges in Presque Isle County rated good (43.2%); 4 (10.8%) are rated poor.
• A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

View this bridge on a map → (45.22069, -83.73912)

Component ratings

Bridge details

Source: FHWA National Bridge Inventory, 2025 data as reported by the Michigan department of transportation.

Busiest bridges in Presque Isle County

All bridges nearby: Presque Isle County, MI bridge conditions · every bridge in Presque Isle County · Michigan bridges.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.