Dawson County Bridge Report Card
Dawson County scores 88 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Dawson County, Nebraska
Dawson County has 300 bridges in the National Bridge Inventory, with 11 rated poor and 5 rated scour-critical. Its poor-condition share of 3.7% is at or below the 7.5% statewide average. Poor-condition bridges carry about 435 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Dawson County a Bridge Condition Exposure Score of 88/100 (B). The county has 300 bridges in the National Bridge Inventory, including 11 in poor condition and 5 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 | 3.7% | 7.3 |
| Poor-condition traffic exposure | 25 | 0.1% of measured traffic | 0.1 |
| Scour-critical bridge share | 20 | 1.7% | 3.3 |
| Average age vs national baseline | 10 | 52 years vs 48 nationally | 1.7 |
| Traffic-data completeness | 5 | 571,086 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 | 3.7% |
| State Poor-Condition Share | 7.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 1.7% |
| Average Bridge Age | 52 years |
| Poor-Condition Traffic Exposure | 435 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Dawson County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Co RD 408/col 7309 over Nppid Canal | Poor condition + traffic exposure | Poor | 70 | 1976 |
| Road 429 over Farmers/merchants Canal | Poor condition + traffic exposure | Poor | 30 | 1935 |
| County Road 414 over Drain Ditch | Poor condition + traffic exposure | Poor | 5 | 1935 |
| Co RD 754/col 7296 over Cnppid Canal | Poor condition + traffic exposure | Poor | 170 | 1935 |
| County Road 209 over Nppid Canal | Poor condition + traffic exposure | Poor | 60 | 1935 |
| County Road 431 over Spring Creek | Poor condition + traffic exposure | Poor | 40 | 1985 |
| County Road 442 over Buffalo Creek | Poor condition + traffic exposure | Poor | 30 | 1935 |
| County Road 763 over Crooked Creek | Poor condition + traffic exposure | Poor | 10 | 1935 |
| County Road 423 over Cnppid Canal | Poor condition + traffic exposure | Poor | 10 | 1935 |
| Driveway Bridge over Cnppid Canal | Poor condition + traffic exposure | Poor | 5 | 1935 |
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.