US Bridges

I-78 Conn. over US 1&9 Ramps

Fair

Essex County, New Jersey · Newark Airport Inter · Structure no. 0725152

Built
1970
55 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
418 ft
4 main spans
Daily traffic
72,500
2023 count
Owner
State
State Highway Agency

About this bridge

I-78 Conn. over US 1&9 Ramps is a steel stringer/multi-beam or girder carrying I-78 Conn. over US 1&9 Ramps in Essex County, New Jersey. It was built in 1970, so it is 55 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 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 72,500 vehicles a day, roughly 9% of them trucks, projected to reach 87,000 by 2043. The structure is 418 ft (127.4 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-78 Conn.
CrossesUS 1&9 Ramps
LocationNewark Airport Inter
RouteInterstate 78
CountyEssex County
StateNew Jersey
Coordinates40.69773, -74.18643
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionFebruary 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length418 ft (127.4 m)
Longest span137 ft (41.8 m)
Deck width47 ft (14.2 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic72,500 (2023)
Projected traffic87,000 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$2 million (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-78 Conn. over US 1&9 Ramps built?

It was built in 1970, making it 55 years old in 2025.

What condition is I-78 Conn. over US 1&9 Ramps 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 Conn. over US 1&9 Ramps carry?

About 72,500 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is I-78 Conn. over US 1&9 Ramps?

The structure is 418 ft (127.4 m) long with a longest span of 137 ft (41.8 m) and a deck 47 ft wide.

Who owns I-78 Conn. over US 1&9 Ramps?

It is owned by the State Highway Agency.