Kidder County Bridge Report Card
Kidder County scores 94 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Kidder County, North Dakota
Kidder County has 10 bridges in the National Bridge Inventory, with 0 rated poor and 0 rated scour-critical. Its poor-condition share of 0.0% is at or below the 11.1% statewide average.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Kidder County a Bridge Condition Exposure Score of 94/100 (A). The county has 10 bridges in the National Bridge Inventory, including 0 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 0 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 | 0.0% | 0.0 |
| Poor-condition traffic exposure | 25 | 0.0% of measured traffic | 0.0 |
| Scour-critical bridge share | 20 | 0.0% | 0.0 |
| Average age vs national baseline | 10 | 64 years vs 48 nationally | 6.3 |
| Traffic-data completeness | 5 | 8,345 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 | 0.0% |
| State Poor-Condition Share | 11.1% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.0% |
| Average Bridge Age | 64 years |
| Poor-Condition Traffic Exposure | 0 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Kidder County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Interstate 94 over Bn Railroad Separation | High traffic | Fair | 3,150 | 1958 |
| Interstate 94 over Bn Railroad Separation | High traffic | Fair | 3,150 | 1958 |
| Nd Highway 3 over I-94/STEELE Interchange | High traffic | Fair | 700 | 1966 |
| Nd Highway 3 South over I-94/DAWSON Interchange | High traffic | Fair | 650 | 1966 |
| County Highway over I 94-tappen Interchange | High traffic | Fair | 250 | 1958 |
| County Highway over I 94-crystal Springs Int | High traffic | Fair | 130 | 1958 |
| County Highway over I94/long Lake Inter | High traffic | Fair | 110 | 1966 |
| County Highway over I 94/pettibone Interchg | High traffic | Fair | 100 | 1958 |
| County Highway over I94/robinson Interchange | High traffic | Fair | 80 | 1966 |
| County Highway over I94/weber Lake Sep | High traffic | Good | 25 | 1966 |
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.