Home › Montana › Teton County › US 287 over Deep Creek

US 287 over Deep Creek

Teton County, Montana · rated Fair in the 2025 National Bridge Inventory

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

US 287 over Deep Creek in Teton County, Montana, 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 1965, making it 60 years old at the 2025 inventory.
It carries about 532 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 45 of the 82 inventoried bridges in Teton County rated fair (54.9%); 3 (3.7%) 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 stringer or multi-beam girder
Length	about 184 ft
Location	3M S Choteau
NBI structure number	P00009061+05971
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I 15 over Sep 9TH Rd NE	1972	1,969	Good
I 15 over Sep 9TH Rd NE	1972	1,969	Good
US 89 over Greenfields South Canal	1983	1,798	Good
US 89 over Greenfields Main Canal	1983	1,798	Good
I 15 over Int Main St	1976	1,703	Fair
I 15 over Int Main St	1976	1,703	Fair