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Kelly Road (pri) over N Br Butterfield Creek

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

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

Kelly Road (pri) over N Br Butterfield Creek in Missaukee 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 1960, making it 65 years old at the 2025 inventory.
It carries about 330 vehicles a day (traffic count year 2007).
Its listed owner is the county highway agency.
It is one of 15 of the 39 inventoried bridges in Missaukee County rated fair (38.5%); 4 (10.3%) 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-55\|w Watergate R over Clam River	1973	5,113	Fair
M-55\|e Houghton La over W Br Muskegon River	1931	4,338	Fair
M-55\|e Houghton La over Muskegon River	1935	4,338	Fair
M-66\|w Stoney Corn over N Br Clam River	1933	4,081	Fair
M-66 over Clam River	1929	2,696	Fair
M-66\|s Burkett Rd over Middle Br Clam River	1929	2,466	Fair