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Main St over Mcdonald Creek 015

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

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

Main St over Mcdonald Creek 015 in Petroleum 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 5 (fair condition) on the 0-9 scale.
It was built in 1940, making it 85 years old at the 2025 inventory.
It carries about 64 vehicles a day (traffic count year 2023).
Its listed owner is a city or municipal highway agency.
It is one of 14 of the 26 inventoried bridges in Petroleum County rated fair (53.8%); 4 (15.4%) 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
S 200 over Box Elder Creek	1953	539	Fair
S 244 over Mcdonald Creek	1941	245	Fair
S 244 over Pike Creek	1939	233	Fair
S 244 over Drainage	1935	233	Fair
S 244 over Yellow Water Cr-elk CR	1948	233	Poor
S 244 over Drainage	1940	208	Fair