US Bridges

Nj Rt 18 NB over Garden St. Pkwy & Ramp F

Fair

Monmouth County, New Jersey · 0.1 Mi. W. of Wayside Rd. · Structure no. 1329172

Built
1991
34 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,014 ft
8 main spans
Daily traffic
20,981
2023 count
Owner
State
State Highway Agency

About this bridge

Nj Rt 18 NB over Garden St. Pkwy & Ramp F is a steel continuous stringer/multi-beam or girder carrying Nj Rt 18 NB over Garden St. Pkwy & Ramp F 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 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 20,981 vehicles a day, roughly 5% of them trucks, projected to reach 25,178 by 2043. The structure is 1,014 ft (309.1 m) long and 56 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesNj Rt 18 NB
CrossesGarden St. Pkwy & Ramp F
Location0.1 Mi. W. of Wayside Rd.
RouteState Highway 18
CountyMonmouth County
StateNew Jersey
Coordinates40.28079, -74.08658
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating54 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20 + Mod
Structure length1,014 ft (309.1 m)
Longest span162 ft (49.4 m)
Deck width56 ft (17.2 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,981 (2023)
Projected traffic25,178 by 2043
Trucks5%
Lanes on structure3
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nj Rt 18 NB over Garden St. Pkwy & Ramp F built?

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

What condition is Nj Rt 18 NB over Garden St. Pkwy & Ramp F 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 Rt 18 NB over Garden St. Pkwy & Ramp F carry?

About 20,981 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Nj Rt 18 NB over Garden St. Pkwy & Ramp F?

The structure is 1,014 ft (309.1 m) long with a longest span of 162 ft (49.4 m) and a deck 56 ft wide.

Who owns Nj Rt 18 NB over Garden St. Pkwy & Ramp F?

It is owned by the State Highway Agency.