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20 Mile Rd(marion) over US-131 NB

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

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

20 Mile Rd(marion) over US-131 NB in Osceola 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 1975, making it 50 years old at the 2025 inventory.
It carries about 1,400 vehicles a day (traffic count year 1996).
Its listed owner is the state highway agency.
It is one of 60 of the 103 inventoried bridges in Osceola County rated fair (58.3%); 7 (6.8%) 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	Steel stringer or multi-beam girder
Length	about 151 ft
Location	0.5 Mi W of Tustin
NBI structure number	000000000008550
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US-131 NB over E Br Hersey River	1957	12,782	Fair
US-131 NB over Hersey Creek	1985	11,841	Fair
US-131 SB over Hersey Creek	1985	11,841	Fair
US-10 over Twin Creek	1997	11,184	Good
US-10 over Hersey River	1958	6,569	Fair
US-131 NB over Johnson Creek	1984	6,391	Fair