US Bridges

Exit Ramp to Gsp over RTE I-78

Fair

Union County, New Jersey · At Gsp Interchange NO.142 · Structure no. 361431C

Built
1974
51 years old, rebuilt 1997
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
248 ft
2 main spans
Daily traffic
37,371
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Exit Ramp to Gsp over RTE I-78 is a steel stringer/multi-beam or girder carrying Exit Ramp to Gsp over RTE I-78 in Union County, New Jersey. It was built in 1974 and reconstructed in 1997, so it is 51 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 37,371 vehicles a day, roughly 1% of them trucks, projected to reach 19,689 by 2043. The structure is 248 ft (75.6 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesExit Ramp to Gsp
CrossesRTE I-78
LocationAt Gsp Interchange NO.142
CountyUnion County
StateNew Jersey
Coordinates40.70596, -74.2515
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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.9 US tons
Inventory rating41.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length248 ft (75.6 m)
Longest span121 ft (36.9 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,371 (2023)
Projected traffic19,689 by 2043
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Exit Ramp to Gsp over RTE I-78 built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 1997.

What condition is Exit Ramp to Gsp over RTE I-78 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 2023.

How much traffic does Exit Ramp to Gsp over RTE I-78 carry?

About 37,371 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Exit Ramp to Gsp over RTE I-78?

The structure is 248 ft (75.6 m) long with a longest span of 121 ft (36.9 m) and a deck 33 ft wide.

Who owns Exit Ramp to Gsp over RTE I-78?

It is owned by the State Toll Authority.