US Bridges

Nj Tpk Extension over Conrail

Fair

Hudson County, New Jersey · 3.6 MI E of Newark Bay · Structure no. N005660

Built
1955
70 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
393 ft
3 main spans
Daily traffic
56,914
2024 count
Owner
Toll Authority
State Toll Authority

About this bridge

Nj Tpk Extension over Conrail is a steel stringer/multi-beam or girder carrying Nj Tpk Extension over Conrail in Hudson County, New Jersey. It was built in 1955, so it is 70 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 56,914 vehicles a day, roughly 2% of them trucks, projected to reach 69,445 by 2044. The structure is 393 ft (119.8 m) long and 115 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNj Tpk Extension
CrossesConrail
Location3.6 MI E of Newark Bay
RouteInterstate 78
CountyHudson County
StateNew Jersey
Coordinates40.70383, -74.06592
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.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.8 US tons
Inventory rating28.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length393 ft (119.8 m)
Longest span173 ft (52.7 m)
Deck width115 ft (35.2 m)
Roadway width109 ft (33.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic56,914 (2024)
Projected traffic69,445 by 2044
Trucks2%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nj Tpk Extension over Conrail built?

It was built in 1955, making it 70 years old in 2025.

What condition is Nj Tpk Extension over Conrail 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 May 2024.

How much traffic does Nj Tpk Extension over Conrail carry?

About 56,914 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Nj Tpk Extension over Conrail?

The structure is 393 ft (119.8 m) long with a longest span of 173 ft (52.7 m) and a deck 115 ft wide.

Who owns Nj Tpk Extension over Conrail?

It is owned by the State Toll Authority.