Bridge conditions in Dawson County, Montana
109 inventoried bridges · 9 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Dawson County tracks close to typical: 9 of its 109 inventoried bridges (8.3%) are rated poor, against a national rate of about 7%.
- 9 of the 109 bridges in Dawson County, Montana, are rated in poor condition (8.3%) in the 2025 National Bridge Inventory, as of .
- 8 bridges (7.3%) are rated good and 92 (84.4%) fair.
- The median Dawson County bridge was built in 1970.
- The busiest poor-rated bridge is I 94 over Clear Creek (built 1973), carrying about 4,317 vehicles a day.
Good 7.3% · Fair 84.4% · Poor 8.3% of 109 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 |
|---|---|---|---|
| I 94 over Clear Creek | 1973 | 4,317 | Poor |
| S 200 over Drainage | 1959 | 307 | Poor |
| Road 229 over Bad Route Creek 035 | 1975 | 100 | Poor |
| County Road 524 over N Fk Thirten Mile CR 091 | 1983 | 100 | Poor |
| County Road 542 over Thirteen Mile CR 061 | 1964 | 100 | Poor |
| County Road 530 over S Fk Burns Creek 092 | 1975 | 100 | Poor |
| Pleasant View Rd over Seven Mile Creek 025 | 1983 | 94 | Poor |
| Road 261 over Irrigation Canal 042 | 1920 | 21 | Poor |
| Road 261 over Crackerbox Creek 043 | 1997 | 21 | Poor |
Busiest bridges in the county
| 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 |
| I 94 over Int Circle-rr-7m CR | 1969 | 3,373 | Fair |
| I 94 over Dry Creek | 1969 | 3,373 | Fair |
| I 94 over Dry Creek | 1969 | 3,373 | Fair |
| I 94 over Int P 20-sidney | 1969 | 2,981 | 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.