US Bridges

Nj Rt 18 SB over Gsp Ramp F & Ramp

Good

Monmouth County, New Jersey · 0.1 Mi. W. of Wayside Rd. · Structure no. 1329168

Built
1991
34 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,082 ft
7 main spans
Daily traffic
20,966
2023 count
Owner
State
State Highway Agency

About this bridge

Nj Rt 18 SB over Gsp Ramp F & Ramp is a steel continuous stringer/multi-beam or girder carrying Nj Rt 18 SB over Gsp Ramp F & Ramp in Monmouth County, New Jersey. It was built in 1991, so it is 34 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 20,966 vehicles a day, roughly 5% of them trucks, projected to reach 25,159 by 2043. The structure is 1,082 ft (329.8 m) long and 58 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNj Rt 18 SB
CrossesGsp Ramp F & Ramp
Location0.1 Mi. W. of Wayside Rd.
RouteState Highway 18
Coordinates40.28053, -74.08635
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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 rating92 US tons
Inventory rating55 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20 + Mod
Structure length1,082 ft (329.8 m)
Longest span174 ft (53 m)
Deck width58 ft (17.8 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,966 (2023)
Projected traffic25,159 by 2043
Trucks5%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
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 Nj Rt 18 SB over Gsp Ramp F & Ramp built?

It was built in 1991, making it 34 years old in 2025.

What condition is Nj Rt 18 SB over Gsp Ramp F & Ramp in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does Nj Rt 18 SB over Gsp Ramp F & Ramp carry?

About 20,966 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Nj Rt 18 SB over Gsp Ramp F & Ramp?

The structure is 1,082 ft (329.8 m) long with a longest span of 174 ft (53 m) and a deck 58 ft wide.

Who owns Nj Rt 18 SB over Gsp Ramp F & Ramp?

It is owned by the State Highway Agency.