US Bridges

I-78 Ramps A+b over US1+9+22+RMP to US1+9EXP

Fair

Essex County, New Jersey · JCT US 1&9 US 22&NJ 21 · Structure no. 0725155

Built
1968
57 years old, rebuilt 2001
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
328 ft
5 main spans
Daily traffic
12,300
2023 count
Owner
State
State Highway Agency

About this bridge

I-78 Ramps A+b over US1+9+22+RMP to US1+9EXP is a steel stringer/multi-beam or girder carrying I-78 Ramps A+b over US1+9+22+RMP to US1+9EXP in Essex County, New Jersey. It was built in 1968 and reconstructed in 2001, so it is 57 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 12,300 vehicles a day, roughly 9% of them trucks, projected to reach 14,800 by 2043. The structure is 328 ft (100 m) long and 73 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-78 Ramps A+b
CrossesUS1+9+22+RMP to US1+9EXP
LocationJCT US 1&9 US 22&NJ 21
RouteInterstate 78
CountyEssex County
StateNew Jersey
Coordinates40.70884, -74.17801
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.1 US tons
Inventory rating54 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 25 or greater
Structure length328 ft (100 m)
Longest span113 ft (34.4 m)
Deck width73 ft (22.1 m)
Roadway width69 ft (21 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,300 (2023)
Projected traffic14,800 by 2043
Trucks9%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$31,000 (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-78 Ramps A+b over US1+9+22+RMP to US1+9EXP built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2001.

What condition is I-78 Ramps A+b over US1+9+22+RMP to US1+9EXP 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 February 2023.

How much traffic does I-78 Ramps A+b over US1+9+22+RMP to US1+9EXP carry?

About 12,300 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is I-78 Ramps A+b over US1+9+22+RMP to US1+9EXP?

The structure is 328 ft (100 m) long with a longest span of 113 ft (34.4 m) and a deck 73 ft wide.

Who owns I-78 Ramps A+b over US1+9+22+RMP to US1+9EXP?

It is owned by the State Highway Agency.