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State Road over Pine River

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

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

State Road over Pine River in Lake County, Michigan, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1962, making it 63 years old at the 2025 inventory.
It carries about 420 vehicles a day (traffic count year 2007).
Its listed owner is the county highway agency.
It is one of 13 of the 31 inventoried bridges in Lake County rated fair (41.9%); 5 (16.1%) 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 119 ft
Location	5 Mi N of Luther
NBI structure number	000000000005283
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
M-37 over Pere Marquette River	1922	4,771	Fair
M-37 over Baldwin Creek	1929	4,771	Fair
US-10 over Baldwin Creek	1931	3,813	Fair
US-10 over Sanborn Creek	1934	3,813	Fair
M-37 over Little Manistee River	1939	2,500	Good
56 Th Street FH32 over Pere Marquette River	1997	1,400	Good