Monmouth County Bridge Report Card

Monmouth County scores 72 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

C72 / 100

Local infrastructure snapshot

Monmouth County, New Jersey

Monmouth County has 508 bridges in the National Bridge Inventory, with 43 rated poor and 12 rated scour-critical. Its poor-condition share of 8.5% is above the 5.8% statewide average. Poor-condition bridges carry about 410,649 daily vehicle crossings.

508Total Bridges

43Poor (8.5%)

294Fair (57.9%)

12Scour-Critical

Quote-Ready Local Facts

8.5%of county bridges are in poor condition, compared with 5.8% statewide and 6.7% nationally.

410,649daily vehicle crossings are on poor-condition bridges in the county.

12bridges are rated scour-critical, or 2.4% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Monmouth County a Bridge Condition Exposure Score of 72/100 (C). The county has 508 bridges in the National Bridge Inventory, including 43 in poor condition and 12 rated scour-critical. Poor-condition bridges carry about 410,649 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	8.5%	16.9
Poor-condition traffic exposure	25	4.7% of measured traffic	3.5
Scour-critical bridge share	20	2.4%	4.7
Average age vs national baseline	10	54 years vs 48 nationally	2.4
Traffic-data completeness	5	8,804,797 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	8.5%
State Poor-Condition Share	5.8%
National Poor-Condition Share	6.7%
County Scour-Critical Share	2.4%
Average Bridge Age	54 years
Poor-Condition Traffic Exposure	410,649 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeOld Road (nj 33) over Millstone River — 34,650 vehicles/day Oldest Listed BridgeProvince Line Road over Crosswicks Creek — built in 1891 All County BridgesBrowse every bridge record in Monmouth County.

Top Bridges to Watch in Monmouth County

Bridge	Reason	Condition	Daily Traffic	Year Built
Old Road (nj 33) over Millstone River	Poor condition + traffic exposure	Poor	34,650	1915
Nj 33 over Manalapan Brook	Poor condition + traffic exposure	Poor	30,910	1927
Nj Route 34 over Big Brook	Poor condition + traffic exposure	Poor	12,608	1930
CR 520 over Shrewsbury River	Poor condition + traffic exposure	Poor	11,230	1950
Nj 35 over Edgar Felix Bike Path	Poor condition + traffic exposure	Poor	25,211	1932
Nj 35 over N Branch Wreck Pond	Poor condition + traffic exposure	Poor	24,634	1931
Nj 35 over Nj 71 (union Ave)	Poor condition + traffic exposure	Poor	24,280	1950
Route 36 over Troutmans Creek	Poor condition + traffic exposure	Poor	24,061	1941
Nj 18 Southbound over Wayside Road	Poor condition + traffic exposure	Poor	20,788	1979
Union Hill Road over US 9	Poor condition + traffic exposure	Poor	18,635	1940

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.