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S 239 over Judith River

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

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

S 239 over Judith River in Judith Basin 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 1961 and reconstructed in 2008, making it 64 years old at the 2025 inventory.
It carries about 324 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 26 of the 45 inventoried bridges in Judith Basin County rated good (57.8%); 7 (15.6%) 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 64 ft
Location	2M W Hobson
NBI structure number	S00239003+01001
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 87 over Dawkins Branch	2021	3,335	Good
US 87 over Ross Fork Creek	1971	3,335	Good
US 87 over Otter Creek	1961	2,874	Good
US 87 over Otter Creek	1961	2,874	Good
US 87 over Otter Creek	1961	2,874	Good
US 87 over Stockpass	1961	2,753	Good