US Bridges

Gsp NB & SB over North Union Avenue

Fair

Union County, New Jersey · 0.2 MI NE of Gsp& I78 JCT · Structure no. 361430T

Built
1952
73 years old, rebuilt 1972
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
70 ft
1 main span
Daily traffic
175,573
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Gsp NB & SB over North Union Avenue is a steel stringer/multi-beam or girder carrying Gsp NB & SB over North Union Avenue in Union County, New Jersey. It was built in 1952 and reconstructed in 1972, so it is 73 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 5 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 175,573 vehicles a day, roughly 1% of them trucks, projected to reach 231,225 by 2043. The structure is 70 ft (21.3 m) long and 175 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesGsp NB & SB
CrossesNorth Union Avenue
Location0.2 MI NE of Gsp& I78 JCT
CountyUnion County
StateNew Jersey
Coordinates40.70765, -74.24527
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.4 US tons
Inventory rating24.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span57 ft (17.4 m)
Deck width175 ft (53.3 m)
Roadway width168 ft (51.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175,573 (2023)
Projected traffic231,225 by 2043
Trucks1%
Lanes on structure11
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 Gsp NB & SB over North Union Avenue built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1972.

What condition is Gsp NB & SB over North Union Avenue 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 July 2023.

How much traffic does Gsp NB & SB over North Union Avenue carry?

About 175,573 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Gsp NB & SB over North Union Avenue?

The structure is 70 ft (21.3 m) long with a longest span of 57 ft (17.4 m) and a deck 175 ft wide.

Who owns Gsp NB & SB over North Union Avenue?

It is owned by the State Toll Authority.