Home › Michigan › Houghton County › Sturgeon River Rd over Sturgeon River

Sturgeon River Rd over Sturgeon River

Houghton County, Michigan · rated Fair in the 2025 National Bridge Inventory

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

Sturgeon River Rd over Sturgeon River in Houghton County, Michigan, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1979, making it 46 years old at the 2025 inventory.
It carries about 25 vehicles a day (traffic count year 2015).
Its listed owner is the county highway agency.
It is one of 19 of the 59 inventoried bridges in Houghton County rated fair (32.2%); 2 (3.4%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Prestressed concrete multiple box beam
Length	about 180 ft
Location	2.0 Mi So of Chassell
NBI structure number	000000000003418
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Us-41&m-26 Rr(abn) over Portage Lake & EB M-26	1960	24,754	Fair
US-41 over Pilgrim River	1916	5,543	Fair
M-26 over Quincy Creek	2021	5,200	Good
US-41 over Sturgeon River Slough	1956	3,985	Fair
US-41 over Snake River	1934	3,883	Fair
US-41 over Backwater Portage River	1929	3,883	Fair