Knox County Bridge Report Card
Knox County scores 89 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Knox County, Nebraska
Knox County has 329 bridges in the National Bridge Inventory, with 9 rated poor and 1 rated scour-critical. Its poor-condition share of 2.7% is at or below the 7.5% statewide average. Poor-condition bridges carry about 4,992 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Knox County a Bridge Condition Exposure Score of 89/100 (B). The county has 329 bridges in the National Bridge Inventory, including 9 in poor condition and 1 rated scour-critical. Poor-condition bridges carry about 4,992 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 | 2.7% | 5.5 |
| Poor-condition traffic exposure | 25 | 6.6% of measured traffic | 4.9 |
| Scour-critical bridge share | 20 | 0.3% | 0.6 |
| Average age vs national baseline | 10 | 43 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 75,703 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 | 2.7% |
| State Poor-Condition Share | 7.5% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.3% |
| Average Bridge Age | 43 years |
| Poor-Condition Traffic Exposure | 4,992 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Knox County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| N14 over Missouri River | Poor condition + traffic exposure | Poor | 830 | 1996 |
| Irr/n12 over Bazile Creek | Poor condition + traffic exposure | Poor | 1,275 | 1946 |
| N12 over Niobrara River | Poor condition + traffic exposure | Poor | 1,035 | 1978 |
| Irr/s54d Santee Sp over Lost Creek | Poor condition + traffic exposure | Poor | 740 | 1970 |
| N12 over Ponca Creek | Poor condition + traffic exposure | Poor | 545 | 1961 |
| N12 over Stream | Poor condition + traffic exposure | Poor | 545 | 1961 |
| Township Road over E Br Verdigris Creek | Poor condition + traffic exposure | Poor | 15 | 1935 |
| Township Road over Little Bazile Creek | Poor condition + traffic exposure | Poor | 5 | 1935 |
| Township Road over Verdigre Creek Tributary | Poor condition + traffic exposure | Poor | 2 | 1962 |
| N59 over Bazile Creek | High traffic | Good | 2,390 | 1986 |
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.