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County Rd 100 over Cut River

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

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

County Rd 100 over Cut River in Roscommon County, Michigan, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
It was built in 2020, making it 5 years old at the 2025 inventory.
It carries about 3,274 vehicles a day (traffic count year 2020).
Its listed owner is the county highway agency.
It is one of 8 of the 42 inventoried bridges in Roscommon County rated good (19.0%); 0 (0.0%) 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 stringer or multi-beam girder
Length	about 100 ft
Location	Section 28 T23N R3W
NBI structure number	000000000009029
Condition class	Good

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