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Cliff Drive over Gratiot River

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

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

Cliff Drive over Gratiot River in Keweenaw County, Michigan, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
It was built in 1935, making it 90 years old at the 2025 inventory.
It carries about 128 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 1 of the 12 inventoried bridges in Keweenaw County rated poor (8.3%); 1 (8.3%) 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	Steel stringer or multi-beam girder
Length	about 23 ft
Location	4.0 Mi N of Ahmeek Villag
NBI structure number	000000000005265
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
US-41 M-26 over Gratiot River	1953	3,430	Good
US-41 over East Branch Eagle River	1932	1,399	Fair
M-26 over Silver River	2023	1,100	Good
US-41 over Fanny Hooe Creek	1928	899	Fair
M-26 over Central Creek	1988	849	Fair
M-26 over Eagle River	1987	849	Fair