Richland County Bridge Report Card
Richland County scores 71 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Richland County, North Dakota
Richland County has 196 bridges in the National Bridge Inventory, with 24 rated poor and 2 rated scour-critical. Its poor-condition share of 12.2% is above the 11.1% statewide average. Poor-condition bridges carry about 435 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Richland County a Bridge Condition Exposure Score of 71/100 (C). The county has 196 bridges in the National Bridge Inventory, including 24 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 435 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 | 12.2% | 24.5 |
| Poor-condition traffic exposure | 25 | 0.3% of measured traffic | 0.2 |
| Scour-critical bridge share | 20 | 1.0% | 2.0 |
| Average age vs national baseline | 10 | 54 years vs 48 nationally | 2.5 |
| Traffic-data completeness | 5 | 149,308 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 | 12.2% |
| State Poor-Condition Share | 11.1% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 1.0% |
| Average Bridge Age | 54 years |
| Poor-Condition Traffic Exposure | 435 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Richland County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| County Highway over Wild Rice River | Poor condition + traffic exposure | Poor | 20 | 1912 |
| County Highway over Sheyenne River | Poor condition + traffic exposure | Poor | 20 | 1917 |
| County Highway over Wild Rice River | Poor condition + traffic exposure | Poor | 20 | 1917 |
| County Highway over Sheyenne River | Poor condition + traffic exposure | Poor | 20 | 1918 |
| County Highway over Wild Rice River | Poor condition + traffic exposure | Poor | 20 | 1918 |
| County Highway over Wild Rice River | Poor condition + traffic exposure | Poor | 20 | 1919 |
| County Highway over Wild Rice River | Poor condition + traffic exposure | Poor | 20 | 1919 |
| County Highway over Wild Rice River | Poor condition + traffic exposure | Poor | 20 | 1920 |
| County Highway over Antelope Creek | Poor condition + traffic exposure | Poor | 20 | 1920 |
| County Highway over Wild Rice River | Poor condition + traffic exposure | Poor | 20 | 1922 |
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.