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Frontage Road 205 over Cottonwood Creek 072

Custer County, Montana · rated Poor in the 2025 National Bridge Inventory

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

Frontage Road 205 over Cottonwood Creek 072 in Custer County, Montana, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1929, making it 96 years old at the 2025 inventory.
It carries about 100 vehicles a day (traffic count year 2025).
Its listed owner is the state highway agency.
It is one of 6 of the 71 inventoried bridges in Custer County rated poor (8.5%); 6 (8.5%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Timber stringer or multi-beam girder
Length	about 153 ft
Location	14M SW Miles City
NBI structure number	L09205002+07001
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
I 94 over Lignite Creek	1964	4,724	Fair
I 94 over Coal Creek	1963	4,724	Fair
I 94 over Tongue River	1961	4,707	Fair
I 94 over Vehicle Pass	1986	4,697	Good
I 94 over Jones Creek-stockpass	1962	4,393	Fair
S 59 over Yellowstone River	1957	2,949	Fair