US Bridges

Ramp E over I-78

Fair

Hunterdon County, New Jersey · .5 MI E of I-78 EXIT-16 · Structure no. 1017150

Built
1958
67 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
173 ft
2 main spans
Daily traffic
7,639
2024 count
Owner
State
State Highway Agency

About this bridge

Ramp E over I-78 is a prestressed concrete stringer/multi-beam or girder carrying Ramp E over I-78 in Hunterdon County, New Jersey. It was built in 1958, so it is 67 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 7,639 vehicles a day, roughly 9% of them trucks, projected to reach 9,320 by 2044. The structure is 173 ft (52.7 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRamp E
CrossesI-78
Location.5 MI E of I-78 EXIT-16
RouteInterstate 78
Coordinates40.63779, -74.89745
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
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51 US tons
Inventory rating20 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length173 ft (52.7 m)
Longest span85 ft (25.9 m)
Deck width32 ft (9.8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,639 (2024)
Projected traffic9,320 by 2044
Trucks9%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp E over I-78 built?

It was built in 1958, making it 67 years old in 2025.

What condition is Ramp E 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 2024.

How much traffic does Ramp E over I-78 carry?

About 7,639 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Ramp E over I-78?

The structure is 173 ft (52.7 m) long with a longest span of 85 ft (25.9 m) and a deck 32 ft wide.

Who owns Ramp E over I-78?

It is owned by the State Highway Agency.