Adams County Bridge Report Card
Adams County scores 55 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Adams County, North Dakota
Adams County has 44 bridges in the National Bridge Inventory, with 5 rated poor and 5 rated scour-critical. Its poor-condition share of 11.4% is above the 11.1% statewide average. Poor-condition bridges carry about 36 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Adams County a Bridge Condition Exposure Score of 55/100 (F). The county has 44 bridges in the National Bridge Inventory, including 5 in poor condition and 5 rated scour-critical. Poor-condition bridges carry about 36 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.
How the Score Breaks Down
| Factor | Weight | County Value | Penalty |
|---|---|---|---|
| Poor-condition bridge share | 40 | 11.4% | 22.7 |
| Poor-condition traffic exposure | 25 | 0.3% of measured traffic | 0.2 |
| Scour-critical bridge share | 20 | 11.4% | 20.0 |
| Average age vs national baseline | 10 | 53 years vs 48 nationally | 2.0 |
| Traffic-data completeness | 5 | 12,096 measured daily crossings | 0.0 |
Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.
County Comparisons
| County Poor-Condition Share | 11.4% |
| State Poor-Condition Share | 11.1% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 11.4% |
| Average Bridge Age | 53 years |
| Poor-Condition Traffic Exposure | 36 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Adams County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| 14th ST SW over Buffalo Creek | Poor condition + traffic exposure | Poor | 10 | 1919 |
| Haynes RD over Flat Creek | Poor condition + traffic exposure | Poor | 10 | 1936 |
| 6th ST NE over Cedar Creek | Poor condition + traffic exposure | Poor | 10 | 1991 |
| 11th Street North over Cedar Creek | Poor condition + traffic exposure | Poor | 5 | 1930 |
| 17th AVE NW over Cedar Creek | Poor condition + traffic exposure | Poor | 1 | 1925 |
| Nd Highway 8 over Flat Creek | Scour-critical foundation rating | Fair | 1,730 | 1959 |
| US Highway 12 over Flat Creek | Scour-critical foundation rating | Fair | 1,370 | 1941 |
| 23rd St. NE over Cedar Creek | Scour-critical foundation rating | Good | 140 | 1975 |
| 4th ST Northeast over Cedar Creek | Scour-critical foundation rating | Fair | 125 | 1964 |
| 27th St. NE over Cedar Creek | Scour-critical foundation rating | Good | 100 | 2006 |
Important safety note
Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.