US Bridges

Gsp NB over US RTE 9 & Ramp M

Fair

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

Built
1968
57 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
329 ft
2 main spans
Daily traffic
64,556
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Gsp NB over US RTE 9 & Ramp M is a steel stringer/multi-beam or girder carrying Gsp NB over US RTE 9 & 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 64,556 vehicles a day, roughly 1% of them trucks, projected to reach 102,018 by 2043. The structure is 329 ft (100.3 m) long and 75 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesGsp NB
CrossesUS RTE 9 & Ramp M
LocationAt Gsp & Nj 440 JCT
CountyMiddlesex County
StateNew Jersey
Coordinates40.5202, -74.30082
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 evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.9 US tons
Inventory rating33.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length329 ft (100.3 m)
Longest span167 ft (50.9 m)
Deck width75 ft (23 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic64,556 (2023)
Projected traffic102,018 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 NB over US RTE 9 & Ramp M built?

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

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

About 64,556 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Gsp NB over US RTE 9 & Ramp M?

The structure is 329 ft (100.3 m) long with a longest span of 167 ft (50.9 m) and a deck 75 ft wide.

Who owns Gsp NB over US RTE 9 & Ramp M?

It is owned by the State Toll Authority.