US Bridges

Gsp (sb Roadway) over US Route 9 (south Bound)

Fair

Middlesex County, New Jersey · .75 MI N of GSP&NJ440 JCT · Structure no. 361287S

Built
1968
57 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
194 ft
1 main span
Daily traffic
57,892
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Gsp (sb Roadway) over US Route 9 (south Bound) is a steel stringer/multi-beam or girder carrying Gsp (sb Roadway) over US Route 9 (south Bound) in Middlesex County, New Jersey. It was built in 1968, so it is 57 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 57,892 vehicles a day, roughly 1% of them trucks, projected to reach 91,801 by 2043. The structure is 194 ft (59.1 m) long and 79 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesGsp (sb Roadway)
CrossesUS Route 9 (south Bound)
Location.75 MI N of GSP&NJ440 JCT
CountyMiddlesex County
StateNew Jersey
Coordinates40.52946, -74.29834
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.
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.6 US tons
Inventory rating25.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length194 ft (59.1 m)
Longest span192 ft (58.5 m)
Deck width79 ft (24.2 m)
Roadway width74 ft (22.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic57,892 (2023)
Projected traffic91,801 by 2043
Trucks1%
Lanes on structure4
Traffic directionOne-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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Gsp (sb Roadway) over US Route 9 (south Bound) built?

It was built in 1968, making it 57 years old in 2025.

What condition is Gsp (sb Roadway) over US Route 9 (south Bound) 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 (sb Roadway) over US Route 9 (south Bound) carry?

About 57,892 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Gsp (sb Roadway) over US Route 9 (south Bound)?

The structure is 194 ft (59.1 m) long with a longest span of 192 ft (58.5 m) and a deck 79 ft wide.

Who owns Gsp (sb Roadway) over US Route 9 (south Bound)?

It is owned by the State Toll Authority.