Bridge conditions in Adams County, North Dakota
44 inventoried bridges · 5 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
About one in 9 bridges in Adams County is rated in poor condition: 5 of 44 on the federal inventory, one of the higher shares in North Dakota.
- 5 of the 44 bridges in Adams County, North Dakota, are rated in poor condition (11.4%) in the 2025 National Bridge Inventory, as of .
- 16 bridges (36.4%) are rated good and 23 (52.3%) fair.
- The median Adams County bridge was built in 1979.
- The busiest poor-rated bridge is 14TH St SW over Buffalo Creek (built 1919), carrying about 10 vehicles a day.
Good 36.4% · Fair 52.3% · Poor 11.4% of 44 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 |
|---|---|---|---|
| 14TH St SW over Buffalo Creek | 1919 | 10 | Poor |
| 6th ST NE over Cedar Creek | 1991 | 10 | Poor |
| Haynes Rd over Flat Creek | 1936 | 10 | Poor |
| 11TH Street North over Cedar Creek | 1930 | 5 | Poor |
| 17TH Ave NW over Cedar Creek | 1925 | 1 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Nd Highway 8 over Flat Creek | 1959 | 1,730 | Fair |
| US Highway 12 over Flat Creek | 1941 | 1,370 | Fair |
| US Highway 12 over Creek | 2007 | 1,180 | Good |
| US Highway 12 over Flat Creek | 2007 | 1,180 | Good |
| US Highway 12 over Flat Creek | 2007 | 1,180 | Good |
| US Highway 12 over BNSF Railroad | 2000 | 675 | Fair |
| Nd Highway 22 over Cedar Creek | 1957 | 550 | Fair |
| Nd Highway 8 over Duck Creek | 1960 | 520 | Fair |
| Nd Highway 8 over Creek | 1934 | 510 | Fair |
| Nd Highway 8 over Creek | 1934 | 490 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of North Dakota: North Dakota 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.