Hunterdon County Bridge Report Card
Hunterdon County scores 58 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Hunterdon County, New Jersey
Hunterdon County has 373 bridges in the National Bridge Inventory, with 26 rated poor and 28 rated scour-critical. Its poor-condition share of 7.0% is above the 5.8% statewide average. Poor-condition bridges carry about 203,737 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Hunterdon County a Bridge Condition Exposure Score of 58/100 (F). The county has 373 bridges in the National Bridge Inventory, including 26 in poor condition and 28 rated scour-critical. Poor-condition bridges carry about 203,737 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 | 7.0% | 13.9 |
| Poor-condition traffic exposure | 25 | 4.1% of measured traffic | 3.1 |
| Scour-critical bridge share | 20 | 7.5% | 15.0 |
| Average age vs national baseline | 10 | 76 years vs 48 nationally | 10.0 |
| Traffic-data completeness | 5 | 4,950,067 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 | 7.0% |
| State Poor-Condition Share | 5.8% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 7.5% |
| Average Bridge Age | 76 years |
| Poor-Condition Traffic Exposure | 203,737 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Hunterdon County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| RT Nj 29 over Copper Creek | Poor condition + traffic exposure | Poor | 2,380 | 1914 |
| Lower Kingtown RD over Capoolong Creek | Poor condition + traffic exposure | Poor | 828 | 1925 |
| Van Lieus Road over Back Brook | Poor condition + traffic exposure | Poor | 459 | 1910 |
| Hamp Road over Alexauken Creek | Poor condition + traffic exposure | Poor | 67 | 1900 |
| I-78 over Beaver Brook | Poor condition + traffic exposure | Poor | 130,244 | 1941 |
| US 22 over Njt Raritan Valley Line | Poor condition + traffic exposure | Poor | 20,839 | 1937 |
| Bridge Street over D&r Feeder Canal | Poor condition + traffic exposure | Poor | 11,856 | 1920 |
| County Route 619 over Harihokake Creek | Poor condition + traffic exposure | Poor | 6,382 | 1938 |
| Mechlin Corner RD over Norf. So. Lehigh Val Ml | Poor condition + traffic exposure | Poor | 5,247 | 1968 |
| Bridge Street over D&r Feeder Canal | Poor condition + traffic exposure | Poor | 4,821 | 1926 |
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.