Bristol County Bridge Report Card
Bristol County scores 67 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Bristol County, Massachusetts
Bristol County has 387 bridges in the National Bridge Inventory, with 27 rated poor and 12 rated scour-critical. Its poor-condition share of 7.0% is at or below the 9.4% statewide average. Poor-condition bridges carry about 615,475 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Bristol County a Bridge Condition Exposure Score of 67/100 (D). The county has 387 bridges in the National Bridge Inventory, including 27 in poor condition and 12 rated scour-critical. Poor-condition bridges carry about 615,475 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% | 14.0 |
| Poor-condition traffic exposure | 25 | 8.3% of measured traffic | 6.2 |
| Scour-critical bridge share | 20 | 3.1% | 6.2 |
| Average age vs national baseline | 10 | 63 years vs 48 nationally | 6.2 |
| Traffic-data completeness | 5 | 7,406,560 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 | 9.4% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 3.1% |
| Average Bridge Age | 63 years |
| Poor-Condition Traffic Exposure | 615,475 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Bristol County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| US 44 Winthrop ST over Water Palmer River | Poor condition + traffic exposure | Poor | 13,010 | 1850 |
| HWY Mendon RD over Water Abbott Run River | Poor condition + traffic exposure | Poor | 7,370 | 1850 |
| HWY Scadding ST over Water Snake River | Poor condition + traffic exposure | Poor | 517 | 1967 |
| I 495 NB over HWY School ST | Poor condition + traffic exposure | Poor | 70,813 | 1978 |
| I 195 over Comb Macrr/purchase ST | Poor condition + traffic exposure | Poor | 62,062 | 1965 |
| I 195 over HWY County&state Sts | Poor condition + traffic exposure | Poor | 62,062 | 1965 |
| I 195 over ST 18 Ashley BLVD | Poor condition + traffic exposure | Poor | 62,062 | 1965 |
| ST 24 over St140 County ST | Poor condition + traffic exposure | Poor | 50,018 | 1951 |
| I 195 EB over Water Palmer River | Poor condition + traffic exposure | Poor | 44,535 | 1960 |
| ST 24 over Water Assonet River | Poor condition + traffic exposure | Poor | 42,505 | 1951 |
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.