US Bridges

I-78 over Frelnghysen Av RR Ditch

Fair

Essex County, New Jersey · 2.2 MI W of Njtpk Exit 14 · Structure no. 0724150

Built
1972
53 years old, rebuilt 2001
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
2,237 ft
23 main spans
Daily traffic
169,624
2023 count
Owner
State
State Highway Agency

About this bridge

I-78 over Frelnghysen Av RR Ditch is a steel stringer/multi-beam or girder carrying I-78 over Frelnghysen Av RR Ditch in Essex County, New Jersey. It was built in 1972 and reconstructed in 2001, so it is 53 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 169,624 vehicles a day, roughly 9% of them trucks, projected to reach 206,974 by 2043. The structure is 2,237 ft (681.8 m) long and 199 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-78
CrossesFrelnghysen Av RR Ditch
Location2.2 MI W of Njtpk Exit 14
RouteInterstate 78
Coordinates40.70852, -74.19212
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating36 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans23 (+7 approach)
Design loadHS 20 + Mod
Structure length2,237 ft (681.8 m)
Longest span169 ft (51.5 m)
Deck width199 ft (60.8 m)
Roadway width185 ft (56.4 m)
Vertical clearance over deck17 ft (5.3 m)

Traffic and service

Average daily traffic169,624 (2023)
Projected traffic206,974 by 2043
Trucks9%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
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 over Frelnghysen Av RR Ditch built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2001.

What condition is I-78 over Frelnghysen Av RR Ditch 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 March 2023.

How much traffic does I-78 over Frelnghysen Av RR Ditch carry?

About 169,624 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is I-78 over Frelnghysen Av RR Ditch?

The structure is 2,237 ft (681.8 m) long with a longest span of 169 ft (51.5 m) and a deck 199 ft wide.

Who owns I-78 over Frelnghysen Av RR Ditch?

It is owned by the State Highway Agency.