US Bridges

Nj Tpk Sno Roadway over Sawmill Brook

Fair

Middlesex County, New Jersey · 1.4 MI South of Int 9 · Structure no. M08166N

Built
1990
35 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
76 ft
1 main span
Daily traffic
31,337
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Nj Tpk Sno Roadway over Sawmill Brook is a prestressed concrete stringer/multi-beam or girder carrying Nj Tpk Sno Roadway over Sawmill Brook 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 31,337 vehicles a day, roughly 30% of them trucks, projected to reach 56,157 by 2043. The structure is 76 ft (23.2 m) long and 62 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNj Tpk Sno Roadway
CrossesSawmill Brook
Location1.4 MI South of Int 9
RouteInterstate 95
CountyMiddlesex County
StateNew Jersey
Coordinates40.45549, -74.41929
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.2 US tons
Inventory rating68.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length76 ft (23.2 m)
Longest span70 ft (21.3 m)
Deck width62 ft (18.8 m)
Roadway width59 ft (17.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,337 (2023)
Projected traffic56,157 by 2043
Trucks30%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nj Tpk Sno Roadway over Sawmill Brook built?

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

What condition is Nj Tpk Sno Roadway over Sawmill Brook 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 Nj Tpk Sno Roadway over Sawmill Brook carry?

About 31,337 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is Nj Tpk Sno Roadway over Sawmill Brook?

The structure is 76 ft (23.2 m) long with a longest span of 70 ft (21.3 m) and a deck 62 ft wide.

Who owns Nj Tpk Sno Roadway over Sawmill Brook?

It is owned by the State Toll Authority.