New Haven County Bridge Report Card
New Haven County scores 73 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
New Haven County, Connecticut
New Haven County has 893 bridges in the National Bridge Inventory, with 33 rated poor and 59 rated scour-critical. Its poor-condition share of 3.7% is at or below the 4.8% statewide average. Poor-condition bridges carry about 500,466 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives New Haven County a Bridge Condition Exposure Score of 73/100 (C). The county has 893 bridges in the National Bridge Inventory, including 33 in poor condition and 59 rated scour-critical. Poor-condition bridges carry about 500,466 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% | 7.4 |
| Poor-condition traffic exposure | 25 | 2.5% of measured traffic | 1.9 |
| Scour-critical bridge share | 20 | 6.6% | 13.2 |
| Average age vs national baseline | 10 | 58 years vs 48 nationally | 4.1 |
| Traffic-data completeness | 5 | 20,058,235 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 | 4.8% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 6.6% |
| Average Bridge Age | 58 years |
| Poor-Condition Traffic Exposure | 500,466 vehicles/day |
Bridges to Watch
Top Bridges to Watch in New Haven County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Route 15 NB over Quinnipiac River | Poor condition + traffic exposure | Poor | 33,700 | 1946 |
| Center Street over Harbor Brook | Poor condition + traffic exposure | Poor | 6,186 | 1871 |
| Oregon Road over Quinnipiac River | Poor condition + traffic exposure | Poor | 4,900 | 1963 |
| Humphrey Street over Mill River | Poor condition + traffic exposure | Poor | 4,100 | 1908 |
| Eagle Street over Naugatuck River | Poor condition + traffic exposure | Poor | 3,067 | 1956 |
| Connelly Parkway over Mill River | Poor condition + traffic exposure | Poor | 2,900 | 1940 |
| Waite Street over Lake Whitney | Poor condition + traffic exposure | Poor | 2,000 | 1935 |
| Interstate-95 over Metro North Railroad | Poor condition + traffic exposure | Poor | 121,500 | 1956 |
| Interstate-84 EB over I-84WB Rte8 Naugatuck Rv | Poor condition + traffic exposure | Poor | 63,000 | 1967 |
| Interstate-84 EB over Shadduck Road | Poor condition + traffic exposure | Poor | 35,800 | 1964 |
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.