Brown County Bridge Report Card
Brown County scores 72 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Brown County, Nebraska
Brown County has 56 bridges in the National Bridge Inventory, with 3 rated poor and 4 rated scour-critical. Its poor-condition share of 5.4% is at or below the 7.5% statewide average. Poor-condition bridges carry about 165 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Brown County a Bridge Condition Exposure Score of 72/100 (C). The county has 56 bridges in the National Bridge Inventory, including 3 in poor condition and 4 rated scour-critical. Poor-condition bridges carry about 165 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 | 5.4% | 10.7 |
| Poor-condition traffic exposure | 25 | 1.3% of measured traffic | 1.0 |
| Scour-critical bridge share | 20 | 7.1% | 14.3 |
| Average age vs national baseline | 10 | 53 years vs 48 nationally | 2.3 |
| Traffic-data completeness | 5 | 12,635 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 | 5.4% |
| State Poor-Condition Share | 7.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 7.1% |
| Average Bridge Age | 53 years |
| Poor-Condition Traffic Exposure | 165 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Brown County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Bar 25 Road over Long Pine Creek | Poor condition + traffic exposure | Poor | 15 | 1935 |
| County Highway over Long Pine Creek | Poor condition + traffic exposure | Poor | 125 | 1935 |
| County Highway over Stream B. Keim | Poor condition + traffic exposure | Poor | 25 | 1935 |
| County Highway over Ainsworth Irrig Canal | Scour-critical foundation rating | Fair | 25 | 1963 |
| County Highway over Ainsworth Irrig Canal | Scour-critical foundation rating | Fair | 5 | 1963 |
| County Highway over Goose Creek | Scour-critical foundation rating | Fair | 5 | 1980 |
| Us20 over Long Pine Creek | High traffic | Good | 2,425 | 1983 |
| Us20 over Stream | High traffic | Good | 1,645 | 1932 |
| Us20 over Stream | High traffic | Good | 1,645 | 1932 |
| Us20 over Sand Draw Creek | High traffic | Good | 1,645 | 1978 |
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.