US Bridges

I-78 WB over North Br Rockaway Creek

Fair

Hunterdon County, New Jersey · 0.5 MI W of I-78 Exit 24 · Structure no. 1018167

Built
1965
60 years old, rebuilt 1994
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
76 ft
1 main span
Daily traffic
58,742
2023 count
Owner
State
State Highway Agency

About this bridge

I-78 WB over North Br Rockaway Creek is a prestressed concrete stringer/multi-beam or girder carrying I-78 WB over North Br Rockaway Creek in Hunterdon County, New Jersey. It was built in 1965 and reconstructed in 1994, so it is 60 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 58,742 vehicles a day, roughly 9% of them trucks, projected to reach 71,677 by 2043. The structure is 76 ft (23.2 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-78 WB
CrossesNorth Br Rockaway Creek
Location0.5 MI W of I-78 Exit 24
RouteInterstate 78
Coordinates40.65095, -74.76493
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating38 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span72 ft (21.9 m)
Deck width56 ft (17.1 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58,742 (2023)
Projected traffic71,677 by 2043
Trucks9%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-78 WB over North Br Rockaway Creek built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1994.

What condition is I-78 WB over North Br Rockaway Creek 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 April 2023.

How much traffic does I-78 WB over North Br Rockaway Creek carry?

About 58,742 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is I-78 WB over North Br Rockaway Creek?

The structure is 76 ft (23.2 m) long with a longest span of 72 ft (21.9 m) and a deck 56 ft wide.

Who owns I-78 WB over North Br Rockaway Creek?

It is owned by the State Highway Agency.