US Bridges

Crowsmill RD CR629 over Perth Amboy Brch (abdnd)

Fair

Middlesex County, New Jersey · 0.4MI NW of US9&NJ440 JCT · Structure no. 1254164

Built
1983
42 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
145 ft
3 main spans
Daily traffic
3,603
2023 count
Owner
Unknown
Unknown

About this bridge

Crowsmill RD CR629 over Perth Amboy Brch (abdnd) is a prestressed concrete box beam or girders - multiple carrying Crowsmill RD CR629 over Perth Amboy Brch (abdnd) in Middlesex County, New Jersey. It was built in 1983, so it is 42 years old, younger than the New Jersey average of 58.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,603 vehicles a day, roughly 4% of them trucks, projected to reach 4,396 by 2043. The structure is 145 ft (44.2 m) long and 60 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCrowsmill RD CR629
CrossesPerth Amboy Brch (abdnd)
Location0.4MI NW of US9&NJ440 JCT
RouteCounty Highway 629
CountyMiddlesex County
StateNew Jersey
Coordinates40.52393, -74.30587
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating96 US tons
Inventory rating58 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length145 ft (44.2 m)
Longest span52 ft (15.8 m)
Deck width60 ft (18.3 m)
Roadway width45 ft (13.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,603 (2023)
Projected traffic4,396 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesPedestrian / bicycle
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerUnknown
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Crowsmill RD CR629 over Perth Amboy Brch (abdnd) built?

It was built in 1983, making it 42 years old in 2025.

What condition is Crowsmill RD CR629 over Perth Amboy Brch (abdnd) in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does Crowsmill RD CR629 over Perth Amboy Brch (abdnd) carry?

About 3,603 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Crowsmill RD CR629 over Perth Amboy Brch (abdnd)?

The structure is 145 ft (44.2 m) long with a longest span of 52 ft (15.8 m) and a deck 60 ft wide.

Who owns Crowsmill RD CR629 over Perth Amboy Brch (abdnd)?

It is owned by the Unknown and maintained by the State Highway Agency.