Middlesex County Bridge Report Card
Middlesex County scores 77 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Middlesex County, Connecticut
Middlesex County has 309 bridges in the National Bridge Inventory, with 13 rated poor and 14 rated scour-critical. Its poor-condition share of 4.2% is at or below the 4.8% statewide average. Poor-condition bridges carry about 129,400 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Middlesex County a Bridge Condition Exposure Score of 77/100 (C). The county has 309 bridges in the National Bridge Inventory, including 13 in poor condition and 14 rated scour-critical. Poor-condition bridges carry about 129,400 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 | 4.2% | 8.4 |
| Poor-condition traffic exposure | 25 | 3.6% of measured traffic | 2.7 |
| Scour-critical bridge share | 20 | 4.5% | 9.1 |
| Average age vs national baseline | 10 | 54 years vs 48 nationally | 2.6 |
| Traffic-data completeness | 5 | 3,595,498 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 | 4.2% |
| State Poor-Condition Share | 4.8% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 4.5% |
| Average Bridge Age | 54 years |
| Poor-Condition Traffic Exposure | 129,400 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Middlesex County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Route 82 over Connecticut River | Poor condition + traffic exposure | Poor | 9,100 | 1913 |
| River Road #1 over Sumner Brook | Poor condition + traffic exposure | Poor | 2,892 | 1920 |
| Waterside Lane over Hammock River | Poor condition + traffic exposure | Poor | 510 | 1994 |
| Route 9 over P&w Railroad & Union ST | Poor condition + traffic exposure | Poor | 55,700 | 1950 |
| Route 66 over Conn River RTE 9 P&w Rr | Poor condition + traffic exposure | Poor | 28,000 | 1938 |
| Route 9 Northbound over Beaver Meadow Road | Poor condition + traffic exposure | Poor | 14,300 | 1966 |
| Route 153 (essex R over Interstate-95 | Poor condition + traffic exposure | Poor | 7,900 | 1957 |
| Route 154 over Roaring Brook | Poor condition + traffic exposure | Poor | 3,800 | 1931 |
| Route 154 over Back River | Poor condition + traffic exposure | Poor | 3,000 | 1935 |
| River Road over Falls River | Poor condition + traffic exposure | Poor | 2,677 | 1954 |
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.