US Bridges

Rt NJ42 Southbound over Blackwood Clementon Road

Fair

Camden County, New Jersey · 1.2 MI S of 42-168 JCT · Structure no. 0411157

Built
1958
67 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
74 ft
1 main span
Daily traffic
62,793
2024 count
Owner
State
State Highway Agency

About this bridge

Rt NJ42 Southbound over Blackwood Clementon Road is a steel stringer/multi-beam or girder carrying Rt NJ42 Southbound over Blackwood Clementon Road in Camden County, New Jersey. It was built in 1958, so it is 67 years old, older 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 62,793 vehicles a day, roughly 5% of them trucks, projected to reach 75,352 by 2044. The structure is 74 ft (22.6 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesRt NJ42 Southbound
CrossesBlackwood Clementon Road
Location1.2 MI S of 42-168 JCT
RouteState Highway 42
CountyCamden County
StateNew Jersey
Coordinates39.80267, -75.05572
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating61 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span70 ft (21.3 m)
Deck width61 ft (18.6 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62,793 (2024)
Projected traffic75,352 by 2044
Trucks5%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$356,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Rt NJ42 Southbound over Blackwood Clementon Road built?

It was built in 1958, making it 67 years old in 2025.

What condition is Rt NJ42 Southbound over Blackwood Clementon Road 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 August 2024.

How much traffic does Rt NJ42 Southbound over Blackwood Clementon Road carry?

About 62,793 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Rt NJ42 Southbound over Blackwood Clementon Road?

The structure is 74 ft (22.6 m) long with a longest span of 70 ft (21.3 m) and a deck 61 ft wide.

Who owns Rt NJ42 Southbound over Blackwood Clementon Road?

It is owned by the State Highway Agency.