Bridge conditions in Valley County, Montana
103 inventoried bridges · 11 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Of the 103 Valley County bridges in the federal inventory, 11 carry a poor rating. That 10.7% share is roughly 2x the national average.
- 11 of the 103 bridges in Valley County, Montana, are rated in poor condition (10.7%) in the 2025 National Bridge Inventory, as of .
- 16 bridges (15.5%) are rated good and 76 (73.8%) fair.
- The median Valley County bridge was built in 1981.
- The busiest poor-rated bridge is SR 117 over Missouri River Overflow (built 1950), carrying about 818 vehicles a day.
Good 15.5% · Fair 73.8% · Poor 10.7% of 103 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 |
|---|---|---|---|
| SR 117 over Missouri River Overflow | 1950 | 818 | Poor |
| Cache Creek Rd over Little Snake Creek 048 | 1965 | 100 | Poor |
| Fox Farm Rd over Lindeke Coulee 007 | 1930 | 100 | Poor |
| Bengochea Rd over E Fk Porcupine Creek 112 | 1960 | 100 | Poor |
| Bentonite Rd over Vandalia South Canal 089 | 1938 | 100 | Poor |
| Hentges Rd over Little Porcupine CR 064 | 1965 | 100 | Poor |
| Old Hwy 2 over Beaver Creek 115 | 1931 | 100 | Poor |
| Oberg Rd over Vandalia South Canal 078 | 1989 | 100 | Poor |
| Tampico Rd over Vandalia South Canal 003 | 2002 | 39 | Poor |
| Vandalia Rd over Milk River 012 | 1989 | 29 | Poor |
| Montfort Rd over Buffalo Coulee 108 | 1950 | 23 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 2 over Cherry Creek Overflow | 1980 | 5,857 | Fair |
| US 2 over Cherry Creek | 1979 | 5,857 | Fair |
| US 2 over Goudge Coulee | 1994 | 1,967 | Fair |
| US 2 over Whately Creek | 1987 | 1,967 | Fair |
| US 2 over Porcupine Creek | 2006 | 1,584 | Fair |
| US 2 over Porcupine Creek Overflow | 2006 | 1,584 | Fair |
| Irr - US 2 over Indian Service Canal | 1960 | 1,514 | Fair |
| US 2 over Chapman Coulee | 2024 | 1,484 | Good |
| US 2 over Mooney Coulee | 2024 | 1,484 | Good |
| US 2 over Richardson Coulee | 1979 | 1,484 | 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.