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Adams St over Black River Tributary

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

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

Adams St over Black River Tributary in Ottawa County, Michigan, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
It was built in 1973, making it 52 years old at the 2025 inventory.
It carries about 6,930 vehicles a day (traffic count year 2020).
Its listed owner is the county highway agency.
It is one of 23 of the 253 inventoried bridges in Ottawa County rated poor (9.1%); 23 (9.1%) 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


Structure	Prestressed concrete multiple box beam
Length	about 29 ft
Location	0.1 Mi W of 80TH Ave
NBI structure number	000000000008807
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Taft Rd over US-31	1958	281,500	Fair
US-31 over Grand River M-104 Conn	1960	66,750	Fair
US-31 over Gtw RR & M-104	1959	44,375	Fair
US-31 over 3RD St (m-104)	1958	44,375	Fair
I-96 over Br of Sand Creek	1961	36,338	Good
I-96 EB over Deer Creek	1958	36,000	Fair