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Bridge conditions in Richland County, Montana

97 inventoried bridges · 4 rated poor · 2025 National Bridge Inventory

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

The federal inventory lists 97 bridges in Richland County: 27 rated good, 66 fair, and 4 poor.

4 of the 97 bridges in Richland County, Montana, are rated in poor condition (4.1%) in the 2025 National Bridge Inventory, as of August 20, 2026.
27 bridges (27.8%) are rated good and 66 (68.0%) fair.
The median Richland County bridge was built in 1994.
The busiest poor-rated bridge is S 16 over Crane Creek (built 1957), carrying about 2,821 vehicles a day.

Good 27.8% · Fair 68.0% · Poor 4.1% of 97 bridges

Bridges rated poor

Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.

Bridge	Built	Vehicles/day	Condition
S 16 over Crane Creek	1957	2,821	Poor
S 23 over Yellowstone River	1994	2,438	Poor
S 200 over Drainage	1956	446	Poor
County Road 001 over Hardscrabble Creek 041	1945	100	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
S 16-holly St over Usrs Canal	1999	5,874	Fair
S 200 over First Hay Creek	1986	4,499	Fair
S 200 over Second Hay Creek	1986	4,499	Good
S 16-s Central Ave over Lone Tree Creek	1974	3,968	Fair
14TH St SE over Lone Tree Creek	1973	3,099	Fair
S 16 over Usbr Main Canal	1984	2,821	Fair
S 16 over Crane Creek	1957	2,821	Poor
S 16 over Fox Creek	1974	2,821	Fair
S 23 over Yellowstone River	1994	2,438	Poor
S 16 over Garden Coulee-stockpass	1975	2,313	Fair

Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.

All of Montana: Montana bridge conditions by county · every download on the data page.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.