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Brott Road over Prouty Drain

Hillsdale County, Michigan · rated Poor in the 2025 National Bridge Inventory

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

Brott Road over Prouty Drain in Hillsdale County, Michigan, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 4 (poor condition) on the 0-9 scale.
It was built in 1948, making it 77 years old at the 2025 inventory.
It carries about 48 vehicles a day (traffic count year 2014).
Its listed owner is the county highway agency.
It is one of 15 of the 104 inventoried bridges in Hillsdale County rated poor (14.4%); 15 (14.4%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings

Component	Rating (2025)	FHWA scale meaning
Culvert	4	Poor condition

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

Bridge	Built	Vehicles/day	Condition
US-12 over St Joseph River	1999	15,669	Fair
US-127 over Beecher Creek	1991	5,142	Fair
US-127 over Bean Creek	1947	5,136	Fair
US-127 over Bean Creek	1947	5,136	Fair
Fayette St over St Joseph River	2022	3,798	Good
US-127 over Blanchard Drain	1948	3,056	Poor