Bridge conditions in Wheatland County, Montana
27 inventoried bridges · 4 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Wheatland County has 4 bridges rated poor out of 27 inventoried, a 14.8% share that puts it well above the national rate of about 7%.
- 4 of the 27 bridges in Wheatland County, Montana, are rated in poor condition (14.8%) in the 2025 National Bridge Inventory, as of .
- 9 bridges (33.3%) are rated good and 14 (51.9%) fair.
- The median Wheatland County bridge was built in 1966.
- The busiest poor-rated bridge is Third St NE over Abandoned Rr-antelope CR (built 1939), carrying about 2,063 vehicles a day.
Good 33.3% · Fair 51.9% · Poor 14.8% of 27 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 |
|---|---|---|---|
| Third St NE over Abandoned Rr-antelope CR | 1939 | 2,063 | Poor |
| US 191 over S Fork American Fork | 1941 | 706 | Poor |
| US 191 over Fish Creek | 1942 | 661 | Poor |
| Canal Rd over Deadman Supply Canal | 1997 | 100 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 191 over RR | 2009 | 2,316 | Good |
| Third St NE over Abandoned Rr-antelope CR | 1939 | 2,063 | Poor |
| US 191 over Musselshell River | 1969 | 805 | Good |
| US 191 over Abandoned RR | 1969 | 805 | Good |
| US 191 over Drainage | 1942 | 706 | Fair |
| US 191 over S Fork American Fork | 1941 | 706 | Poor |
| US 191 over American Fork | 1942 | 706 | Fair |
| US 191 over Lebo Creek | 2014 | 706 | Good |
| US 191 over Fish Creek | 1942 | 661 | Poor |
| US 12 over Haymaker Creek | 1966 | 557 | 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.