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S 200 over Bluff Creek

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

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

S 200 over Bluff Creek in Dawson County, Montana, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1959, making it 66 years old at the 2025 inventory.
It carries about 238 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 92 of the 109 inventoried bridges in Dawson County rated fair (84.4%); 9 (8.3%) 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	Timber stringer or multi-beam girder
Length	about 87 ft
Location	14M SW Richey
NBI structure number	P00051013+04741
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
S 200s-towne St over Yellowstone River	1958	8,821	Fair
I 94 over Bad Route Creek	1973	4,438	Fair
I 94 over Cracker Box Creek	1973	4,317	Fair
I 94 over Clear Creek	1973	4,317	Poor
I 94 over Whoopup Creek	1976	4,221	Fair
I 94 over Sand Creek	1976	4,221	Fair