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I 94 over Sarpy Creek

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

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

I 94 over Sarpy Creek in Treasure 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 1967, making it 58 years old at the 2025 inventory.
It carries about 2,521 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 8 of the 26 inventoried bridges in Treasure County rated good (30.8%); 4 (15.4%) 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 188 ft
Location	18.6M E Bighorn
NBI structure number	I00094071+07241
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I 94 over Sep RR	1973	5,042	Good
I 94 over Int Hysham	1964	2,521	Good
I 94 over Int Hysham	1976	2,521	Good
I 94 over Sarpy Creek	1976	2,094	Good
Frontage Road 018 over Irrigation Ditch 001	1933	281	Poor
Old Hwy 10 over Irrigation Ditch 024	1933	273	Fair