US Bridges

Leslie Street over I-78

Fair

Essex County, New Jersey · 1.7 MI East of Gsp · Structure no. 0723153

Built
1976
49 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
512 ft
4 main spans
Daily traffic
4,536
2023 count
Owner
State
State Highway Agency

About this bridge

Leslie Street over I-78 is a steel stringer/multi-beam or girder carrying Leslie Street over I-78 in Essex County, New Jersey. It was built in 1976, so it is 49 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 4,536 vehicles a day, roughly 1% of them trucks, projected to reach 5,443 by 2043. The structure is 512 ft (156.1 m) long and 49 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLeslie Street
CrossesI-78
Location1.7 MI East of Gsp
RouteCity Street 0
Coordinates40.71676, -74.21759
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating43 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length512 ft (156.1 m)
Longest span165 ft (50.3 m)
Deck width49 ft (14.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,536 (2023)
Projected traffic5,443 by 2043
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$51,000 (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Leslie Street over I-78 built?

It was built in 1976, making it 49 years old in 2025.

What condition is Leslie Street over 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 June 2023.

How much traffic does Leslie Street over I-78 carry?

About 4,536 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Leslie Street over I-78?

The structure is 512 ft (156.1 m) long with a longest span of 165 ft (50.3 m) and a deck 49 ft wide.

Who owns Leslie Street over I-78?

It is owned by the State Highway Agency.