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River Rd over Irrigation Ditch 005

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

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

River Rd over Irrigation Ditch 005 in Treasure County, Montana, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 3 (serious condition) on the 0-9 scale.
It was built in 1979, making it 46 years old at the 2025 inventory.
It carries about 17 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 4 of the 26 inventoried bridges in Treasure County rated poor (15.4%); 4 (15.4%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Timber stringer or multi-beam girder
Length	about 28 ft
Location	3M W Hysham
NBI structure number	L52006003+00001
Condition class	Poor

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	1967	2,521	Good
I 94 over Sarpy Creek	1976	2,094	Good
Frontage Road 018 over Irrigation Ditch 001	1933	281	Poor