Home › Michigan › Sanilac County › Applegate Road over Black River

Applegate Road over Black River

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

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

Applegate Road over Black River in Sanilac County, Michigan, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1979, making it 46 years old at the 2025 inventory.
It carries about 2,025 vehicles a day (traffic count year 2010).
Its listed owner is the county highway agency.
It is one of 95 of the 170 inventoried bridges in Sanilac County rated fair (55.9%); 25 (14.7%) 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


Structure	Prestressed concrete multiple box beam
Length	about 165 ft
Location	Sec 26-35 Washington Twp
NBI structure number	000000000009530
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
M-90 over Mills Creek	2023	8,400	Good
M-90 over Black River	2023	8,400	Good
M-25 over Mill Creek	2016	7,775	Good
M-46 over Black River	1947	5,462	Poor
M-90 over Spring Creek	2000	5,001	Good
M-90 over W Br Mills Creek	2006	5,001	Good