US Bridges

I-78 Eastbound over CR 632 & Musconet Riv

Fair

Warren County, New Jersey · 7 MI East of Delaware Riv · Structure no. 2113159

Built
1959
66 years old, rebuilt 2006
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
299 ft
4 main spans
Daily traffic
52,617
2022 count
Owner
State
State Highway Agency

About this bridge

I-78 Eastbound over CR 632 & Musconet Riv is a prestressed concrete stringer/multi-beam or girder carrying I-78 Eastbound over CR 632 & Musconet Riv in Warren County, New Jersey. It was built in 1959 and reconstructed in 2006, so it is 66 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 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 52,617 vehicles a day, roughly 9% of them trucks, projected to reach 64,203 by 2042. The structure is 299 ft (91.1 m) long and 88 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-78 Eastbound
CrossesCR 632 & Musconet Riv
Location7 MI East of Delaware Riv
RouteInterstate 78
Coordinates40.66159, -75.07953
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating55 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length299 ft (91.1 m)
Longest span81 ft (24.7 m)
Deck width88 ft (26.8 m)
Roadway width85 ft (25.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic52,617 (2022)
Projected traffic64,203 by 2042
Trucks9%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-78 Eastbound over CR 632 & Musconet Riv built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2006.

What condition is I-78 Eastbound over CR 632 & Musconet Riv 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 September 2024.

How much traffic does I-78 Eastbound over CR 632 & Musconet Riv carry?

About 52,617 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is I-78 Eastbound over CR 632 & Musconet Riv?

The structure is 299 ft (91.1 m) long with a longest span of 81 ft (24.7 m) and a deck 88 ft wide.

Who owns I-78 Eastbound over CR 632 & Musconet Riv?

It is owned by the State Highway Agency.