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Route 593 over Torch River

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

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

Route 593 over Torch River in Antrim 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 5 (fair condition) on the 0-9 scale.
It was built in 1971, making it 54 years old at the 2025 inventory.
It carries about 2,040 vehicles a day (traffic count year 1997).
Its listed owner is the county highway agency.
It is one of 6 of the 15 inventoried bridges in Antrim County rated fair (40.0%); 2 (13.3%) 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


Structure	Prestressed concrete multiple box beam
Length	about 139 ft
Location	2.5 Mi SW of Alden
NBI structure number	000000000000364
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US-31 over Elk River	1953	11,959	Fair
M-88\|n Bridge St over Intermediate River	1931	5,984	Fair
Derenzy Road over Cedar River	1988	3,150	Good
Cayuga Street over Intermediate River	1977	3,000	Poor
Route 593 over Clam Lake	1958	1,400	Fair
State Street over Intermediate River	1976	900	Fair