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Dunham Lake Rd over Titabawassee River

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

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

Dunham Lake Rd over Titabawassee River in Roscommon County, Michigan, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1975, making it 50 years old at the 2025 inventory.
It carries about 100 vehicles a day (traffic count year 2002).
Its listed owner is the county highway agency.
It is one of 34 of the 42 inventoried bridges in Roscommon County rated fair (81.0%); 0 (0.0%) 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

Component	Rating (2025)	FHWA scale meaning
Culvert	6	Satisfactory condition

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

Bridge	Built	Vehicles/day	Condition
M-18\|m-55\|w Hought over Denton Creek	1959	11,420	Fair
County Rd 100\|SUNS over I-75 SB	1971	9,280	Fair
County Rd 100\|SUNS over I-75 NB	1971	9,280	Fair
M-55 EB Ramp over I-75 NB	1971	7,828	Fair
M-55 WB over I-75 NB	1971	7,828	Fair
I-75 Sb\|m-55 EB over Old 76\|S Saint Helen Rd	1971	7,800	Fair