Towner County Bridge Report Card
Towner County scores 44 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Towner County, North Dakota
Towner County has 57 bridges in the National Bridge Inventory, with 14 rated poor and 2 rated scour-critical. Its poor-condition share of 24.6% is above the 11.1% statewide average. Poor-condition bridges carry about 1,321 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Towner County a Bridge Condition Exposure Score of 44/100 (F). The county has 57 bridges in the National Bridge Inventory, including 14 in poor condition and 2 rated scour-critical. Poor-condition bridges carry about 1,321 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 | 24.6% | 40.0 |
| Poor-condition traffic exposure | 25 | 11.8% of measured traffic | 8.8 |
| Scour-critical bridge share | 20 | 3.5% | 7.0 |
| Average age vs national baseline | 10 | 47 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 11,225 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 | 24.6% |
| State Poor-Condition Share | 11.1% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 3.5% |
| Average Bridge Age | 47 years |
| Poor-Condition Traffic Exposure | 1,321 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Towner County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Nd Highway 17 over Mauvais Coulee | Poor condition + traffic exposure | Poor | 560 | 1962 |
| Nd Highway 17 over Creek | Poor condition + traffic exposure | Poor | 640 | 1931 |
| County Highway over Creek | Poor condition + traffic exposure | Poor | 20 | 1953 |
| County Highway over Coulee | Poor condition + traffic exposure | Poor | 20 | 1974 |
| County Highway over Creek | Poor condition + traffic exposure | Poor | 20 | 1979 |
| County Highway over Creek | Poor condition + traffic exposure | Poor | 10 | 1945 |
| County Highway over Creek | Poor condition + traffic exposure | Poor | 10 | 1960 |
| County Highway over Mauvais Coulee | Poor condition + traffic exposure | Poor | 10 | 1966 |
| County Highway over Mauvais Coulee | Poor condition + traffic exposure | Poor | 10 | 1979 |
| County Highway over Creek | Poor condition + traffic exposure | Poor | 5 | 1938 |
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.