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Lakeshore Drive over Firesteel River

Ontonagon County, Michigan · rated Poor in the 2025 National Bridge Inventory

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

Lakeshore Drive over Firesteel River in Ontonagon County, Michigan, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1976, making it 49 years old at the 2025 inventory.
It carries about 120 vehicles a day (traffic count year 1997).
Its listed owner is the county highway agency.
It is one of 10 of the 66 inventoried bridges in Ontonagon County rated poor (15.2%); 10 (15.2%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Prestressed concrete multiple box beam
Length	about 158 ft
Location	6 Mi NE of Otonagon
NBI structure number	000000000008521
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
M-64 & M-38 over Ontonagon R River Rd RR	2005	3,625	Fair
M-28 over So Br Ontonagon River	1990	2,398	Good
M-28 over M Br Ontonagon River	1929	2,303	Fair
M-28\|m-64 over Merryweather Creek	1932	2,120	Fair
M-64 over Cranberry River	1948	2,117	Fair
M-64 over Weigels Creek	1945	2,117	Fair