US Bridges

Njtpk INT.11 R.Kpn over Njtpk Inter 11 Ramp Pst

Fair

Middlesex County, New Jersey · 0.05 MI E of Gsp · Structure no. I09099E

Built
1970
55 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
237 ft
3 main spans
Daily traffic
18,693
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Njtpk INT.11 R.Kpn over Njtpk Inter 11 Ramp Pst is a steel stringer/multi-beam or girder carrying Njtpk INT.11 R.Kpn over Njtpk Inter 11 Ramp Pst in Middlesex County, New Jersey. It was built in 1970, so it is 55 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 18,693 vehicles a day, roughly 1% of them trucks, projected to reach 6,993 by 2043. The structure is 237 ft (72.2 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesNjtpk INT.11 R.Kpn
CrossesNjtpk Inter 11 Ramp Pst
Location0.05 MI E of Gsp
CountyMiddlesex County
StateNew Jersey
Coordinates40.53744, -74.30457
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJune 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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length237 ft (72.2 m)
Longest span114 ft (34.7 m)
Deck width42 ft (12.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,693 (2023)
Projected traffic6,993 by 2043
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Njtpk INT.11 R.Kpn over Njtpk Inter 11 Ramp Pst built?

It was built in 1970, making it 55 years old in 2025.

What condition is Njtpk INT.11 R.Kpn over Njtpk Inter 11 Ramp Pst 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 June 2023.

How much traffic does Njtpk INT.11 R.Kpn over Njtpk Inter 11 Ramp Pst carry?

About 18,693 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Njtpk INT.11 R.Kpn over Njtpk Inter 11 Ramp Pst?

The structure is 237 ft (72.2 m) long with a longest span of 114 ft (34.7 m) and a deck 42 ft wide.

Who owns Njtpk INT.11 R.Kpn over Njtpk Inter 11 Ramp Pst?

It is owned by the State Toll Authority.