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Rock CR Dam Rd over Rock Creek 098

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

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

Rock CR Dam Rd over Rock Creek 098 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 deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1955 and reconstructed in 1998, making it 70 years old at the 2025 inventory.
It carries about 100 vehicles a day (traffic count year 2025).
Its listed owner is the county 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

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