US Bridges

Nj Tpk Mile 77* over Nj Tpk Nso-Nsi-Sni-Sno*

Fair

Middlesex County, New Jersey · 3.5 MI North of Int 8A · Structure no. M077440

Built
1990
35 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
334 ft
6 main spans
Daily traffic
246
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Nj Tpk Mile 77* over Nj Tpk Nso-Nsi-Sni-Sno* is a steel stringer/multi-beam or girder carrying Nj Tpk Mile 77* over Nj Tpk Nso-Nsi-Sni-Sno* in Middlesex County, New Jersey. It was built in 1990, so it is 35 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 246 vehicles a day, roughly 4% of them trucks, projected to reach 300 by 2043. The structure is 334 ft (101.8 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNj Tpk Mile 77*
CrossesNj Tpk Nso-Nsi-Sni-Sno*
Location3.5 MI North of Int 8A
RouteInterstate 95
CountyMiddlesex County
StateNew Jersey
Coordinates40.40038, -74.45339
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
Deck7 GoodSome minor problems.
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 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103.2 US tons
Inventory rating79.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadHS 25 or greater
Structure length334 ft (101.8 m)
Longest span66 ft (20.1 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic246 (2023)
Projected traffic300 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nj Tpk Mile 77* over Nj Tpk Nso-Nsi-Sni-Sno* built?

It was built in 1990, making it 35 years old in 2025.

What condition is Nj Tpk Mile 77* over Nj Tpk Nso-Nsi-Sni-Sno* 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 2023.

How much traffic does Nj Tpk Mile 77* over Nj Tpk Nso-Nsi-Sni-Sno* carry?

About 246 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Nj Tpk Mile 77* over Nj Tpk Nso-Nsi-Sni-Sno*?

The structure is 334 ft (101.8 m) long with a longest span of 66 ft (20.1 m) and a deck 30 ft wide.

Who owns Nj Tpk Mile 77* over Nj Tpk Nso-Nsi-Sni-Sno*?

It is owned by the State Toll Authority.