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S 3 over Musselshell River

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

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

S 3 over Musselshell River in Golden 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 substructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1959, making it 66 years old at the 2025 inventory.
It carries about 2,161 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 10 of the 17 inventoried bridges in Golden Valley County rated fair (58.8%); 0 (0.0%) 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	Prestressed concrete stringer or multi-beam girder
Length	about 143 ft
Location	Lavina
NBI structure number	P00053045+05521
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
S 3 over Big Coulee Creek	1959	2,161	Good
US 12 over Careless Creek	1988	2,040	Good
US 12 over Nine Mile Creek	1990	2,040	Fair
S 3 over Painted Robe Creek	1993	1,940	Good
US 12 over Twin Coulee	1935	448	Fair
US 12 over Twin Coulee	1935	448	Fair