US Bridges

RTE I-78 EB Inner over Rahway River

Good

Union County, New Jersey · Between I-78 Exits 48&49 · Structure no. 2010171

Built
1967
58 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
113 ft
3 main spans
Daily traffic
82,325
2023 count
Owner
State
State Highway Agency

About this bridge

RTE I-78 EB Inner over Rahway River is a concrete culvert carrying RTE I-78 EB Inner over Rahway River in Union County, New Jersey. It was built in 1967, so it is 58 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 82,325 vehicles a day, roughly 9% of them trucks, projected to reach 98,790 by 2043. The structure is 113 ft (34.4 m) long and 128 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRTE I-78 EB Inner
CrossesRahway River
LocationBetween I-78 Exits 48&49
RouteInterstate 78
Coordinates40.71333, -74.29886
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length113 ft (34.4 m)
Longest span37 ft (11.3 m)
Deck width128 ft (39 m)
Roadway width116 ft (35.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic82,325 (2023)
Projected traffic98,790 by 2043
Trucks9%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 RTE I-78 EB Inner over Rahway River built?

It was built in 1967, making it 58 years old in 2025.

What condition is RTE I-78 EB Inner over Rahway River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does RTE I-78 EB Inner over Rahway River carry?

About 82,325 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is RTE I-78 EB Inner over Rahway River?

The structure is 113 ft (34.4 m) long with a longest span of 37 ft (11.3 m) and a deck 128 ft wide.

Who owns RTE I-78 EB Inner over Rahway River?

It is owned by the State Highway Agency.