US Bridges

Gsp over Njtpk

Fair

Middlesex County, New Jersey · 0.95 MI North of US 9 · Structure no. 361297T

Built
1948
77 years old, rebuilt 2015
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
241 ft
2 main spans
Daily traffic
127,000
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Gsp over Njtpk is a steel continuous stringer/multi-beam or girder carrying Gsp over Njtpk in Middlesex County, New Jersey. It was built in 1948 and reconstructed in 2015, so it is 77 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 127,000 vehicles a day, roughly 1% of them trucks, projected to reach 247,439 by 2043. The structure is 241 ft (73.5 m) long and 113 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesGsp
CrossesNjtpk
Location0.95 MI North of US 9
CountyMiddlesex County
StateNew Jersey
Coordinates40.54078, -74.30854
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
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 geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.2 US tons
Inventory rating24.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length241 ft (73.5 m)
Longest span117 ft (35.7 m)
Deck width113 ft (34.4 m)
Roadway width96 ft (29.2 m)
Vertical clearance over deck14 ft (4.1 m)

Traffic and service

Average daily traffic127,000 (2023)
Projected traffic247,439 by 2043
Trucks1%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkSTRAHNET connector

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Gsp over Njtpk built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 2015.

What condition is Gsp over Njtpk 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 Gsp over Njtpk carry?

About 127,000 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Gsp over Njtpk?

The structure is 241 ft (73.5 m) long with a longest span of 117 ft (35.7 m) and a deck 113 ft wide.

Who owns Gsp over Njtpk?

It is owned by the State Toll Authority.