US Bridges

Gsp SB over US 9 SB & Ramp M

Fair

Middlesex County, New Jersey · At Gsp & Nj 440 JCT · Structure no. 361281S

Built
1968
57 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
337 ft
2 main spans
Daily traffic
64,744
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Gsp SB over US 9 SB & Ramp M is a steel stringer/multi-beam or girder carrying Gsp SB over US 9 SB & Ramp M 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 64,744 vehicles a day, roughly 1% of them trucks, projected to reach 131,916 by 2043. The structure is 337 ft (102.7 m) long and 74 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesGsp SB
CrossesUS 9 SB & Ramp M
LocationAt Gsp & Nj 440 JCT
CountyMiddlesex County
StateNew Jersey
Coordinates40.52041, -74.30107
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.
Substructure7 GoodSome minor problems.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.2 US tons
Inventory rating24.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length337 ft (102.7 m)
Longest span171 ft (52.1 m)
Deck width74 ft (22.6 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic64,744 (2023)
Projected traffic131,916 by 2043
Trucks1%
Lanes on structure5
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 over US 9 SB & Ramp M built?

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

What condition is Gsp SB over US 9 SB & Ramp M 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 over US 9 SB & Ramp M carry?

About 64,744 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Gsp SB over US 9 SB & Ramp M?

The structure is 337 ft (102.7 m) long with a longest span of 171 ft (52.1 m) and a deck 74 ft wide.

Who owns Gsp SB over US 9 SB & Ramp M?

It is owned by the State Toll Authority.