US Bridges

Main ST over Nj Tpk Nso-Nsi Sni Sno

Fair

Middlesex County, New Jersey · 2.8 MI South of Int 9 · Structure no. M08045R

Built
1990
35 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
322 ft
4 main spans
Daily traffic
15,787
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Main ST over Nj Tpk Nso-Nsi Sni Sno is a steel continuous stringer/multi-beam or girder carrying Main ST 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 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 15,787 vehicles a day, roughly 4% of them trucks, projected to reach 19,263 by 2043. The structure is 322 ft (98.1 m) long and 52 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMain ST
CrossesNj Tpk Nso-Nsi Sni Sno
Location2.8 MI South of Int 9
RouteCounty Highway 606
CountyMiddlesex County
StateNew Jersey
Coordinates40.43983, -74.42902
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.2 US tons
Inventory rating67.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length322 ft (98.1 m)
Longest span81 ft (24.7 m)
Deck width52 ft (15.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,787 (2023)
Projected traffic19,263 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 Main ST over Nj Tpk Nso-Nsi Sni Sno built?

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

What condition is Main ST 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 March 2023.

How much traffic does Main ST over Nj Tpk Nso-Nsi Sni Sno carry?

About 15,787 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Main ST over Nj Tpk Nso-Nsi Sni Sno?

The structure is 322 ft (98.1 m) long with a longest span of 81 ft (24.7 m) and a deck 52 ft wide.

Who owns Main ST over Nj Tpk Nso-Nsi Sni Sno?

It is owned by the State Toll Authority.