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Stillwater Riv Rd over W Fork Stillwater River

Stillwater County, Montana · rated Good in the 2025 National Bridge Inventory

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

Stillwater Riv Rd over W Fork Stillwater River in Stillwater County, Montana, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 2003, making it 22 years old at the 2025 inventory.
It carries about 598 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 28 of the 92 inventoried bridges in Stillwater County rated good (30.4%); 1 (1.1%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 78 ft
Location	1M N Nye
NBI structure number	S00419021+04001
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I 90 over Cove Irrigation Ditch	1970	12,321	Good
I 90 over Int Exit 396	1963	10,845	Fair
I 90 over Int Park City	1967	7,580	Fair
I 90 over Int Park City	1967	7,580	Fair
I 90 over Sep Pope Road	1967	7,580	Fair
I 90 over Sep Pope Road	1967	7,580	Fair