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6 Mile Rd over Pine River

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

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

6 Mile Rd over Pine River in Lake County, Michigan, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 7 (good condition) on the 0-9 scale.
It was built in 1996, making it 29 years old at the 2025 inventory.
It carries about 190 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 good (41.9%); 5 (16.1%) 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.

Component ratings


Structure	Prestressed concrete multiple box beam
Length	about 99 ft
Location	3 Miles NE of Luther
NBI structure number	000000000005290
Condition class	Good

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