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Irr - S 24 over Drainage

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

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

Irr - S 24 over Drainage in Valley County, Montana, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1939, making it 86 years old at the 2025 inventory.
It carries about 292 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 76 of the 103 inventoried bridges in Valley County rated fair (73.8%); 11 (10.7%) 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	Timber stringer or multi-beam girder
Length	about 58 ft
Location	15M S Opheim
NBI structure number	P00031034+09421
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US 2 over Cherry Creek Overflow	1980	5,857	Fair
US 2 over Cherry Creek	1979	5,857	Fair
US 2 over Goudge Coulee	1994	1,967	Fair
US 2 over Whately Creek	1987	1,967	Fair
US 2 over Porcupine Creek	2006	1,584	Fair
US 2 over Porcupine Creek Overflow	2006	1,584	Fair