Middlesex County Bridge Report Card

Middlesex County scores 86 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

B86 / 100

Local infrastructure snapshot

Middlesex County, New Jersey

Middlesex County has 562 bridges in the National Bridge Inventory, with 24 rated poor and 5 rated scour-critical. Its poor-condition share of 4.3% is at or below the 5.8% statewide average. Poor-condition bridges carry about 403,425 daily vehicle crossings.

562Total Bridges

24Poor (4.3%)

408Fair (72.6%)

5Scour-Critical

Quote-Ready Local Facts

4.3%of county bridges are in poor condition, compared with 5.8% statewide and 6.7% nationally.

403,425daily vehicle crossings are on poor-condition bridges in the county.

5bridges are rated scour-critical, or 0.9% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Middlesex County a Bridge Condition Exposure Score of 86/100 (B). The county has 562 bridges in the National Bridge Inventory, including 24 in poor condition and 5 rated scour-critical. Poor-condition bridges carry about 403,425 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.

Download all county report-card scores as CSV.

How the Score Breaks Down

Factor	Weight	County Value	Penalty
Poor-condition bridge share	40	4.3%	8.5
Poor-condition traffic exposure	25	2.3% of measured traffic	1.7
Scour-critical bridge share	20	0.9%	1.8
Average age vs national baseline	10	53 years vs 48 nationally	2.2
Traffic-data completeness	5	17,924,264 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	4.3%
State Poor-Condition Share	5.8%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.9%
Average Bridge Age	53 years
Poor-Condition Traffic Exposure	403,425 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeUS 1 over Forrestal Road — 93,321 vehicles/day Oldest Listed BridgeEaston Ave(rt 527) over Mile Run Brook — built in 1878 All County BridgesBrowse every bridge record in Middlesex County.

Top Bridges to Watch in Middlesex County

Bridge	Reason	Condition	Daily Traffic	Year Built
US 1 over Forrestal Road	Poor condition + traffic exposure	Poor	93,321	1932
US 130 over Ridge Road (cr 522)	Poor condition + traffic exposure	Poor	38,155	1941
US RT 130 over Conrail Jamesburg Br	Poor condition + traffic exposure	Poor	37,178	1941
Cranbury RD (535) over New Jersey 18	Poor condition + traffic exposure	Poor	22,324	1963
Landing Lane (609) over Delaware & Raritan Canal	Poor condition + traffic exposure	Poor	22,262	1920
Oak Tree RD CR 604 over Lehigh Valley Line	Poor condition + traffic exposure	Poor	18,708	1931
Adams Lane (cr608) over Amtrak NE Corridor	Poor condition + traffic exposure	Poor	17,850	1955
Bridge ST (cr 669) over Amtrak NE Corridor	Poor condition + traffic exposure	Poor	16,708	1932
Milltown Road over Nj 18	Poor condition + traffic exposure	Poor	16,163	1963
Smith ST (cr 656) over North Jersey Coast Line	Poor condition + traffic exposure	Poor	15,793	1925

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.