US Bridges

Ramp F (nj 18) over Nj Rt 18 and Ramp Gs

Fair

Middlesex County, New Jersey · 0.65 MI S of CR 609 · Structure no. 1237153

Built
1982
43 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
187 ft
3 main spans
Daily traffic
11,490
2024 count
Owner
State
State Highway Agency

About this bridge

Ramp F (nj 18) over Nj Rt 18 and Ramp Gs is a steel stringer/multi-beam or girder carrying Ramp F (nj 18) over Nj Rt 18 and Ramp Gs in Middlesex County, New Jersey. It was built in 1982, so it is 43 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 11,490 vehicles a day, roughly 5% of them trucks, projected to reach 13,785 by 2044. The structure is 187 ft (57 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRamp F (nj 18)
CrossesNj Rt 18 and Ramp Gs
Location0.65 MI S of CR 609
RouteState Highway 18
CountyMiddlesex County
StateNew Jersey
Coordinates40.50613, -74.45182
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating79 US tons
Inventory rating47 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length187 ft (57 m)
Longest span73 ft (22.3 m)
Deck width28 ft (8.6 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,490 (2024)
Projected traffic13,785 by 2044
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$28,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp F (nj 18) over Nj Rt 18 and Ramp Gs built?

It was built in 1982, making it 43 years old in 2025.

What condition is Ramp F (nj 18) over Nj Rt 18 and Ramp Gs 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 August 2024.

How much traffic does Ramp F (nj 18) over Nj Rt 18 and Ramp Gs carry?

About 11,490 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Ramp F (nj 18) over Nj Rt 18 and Ramp Gs?

The structure is 187 ft (57 m) long with a longest span of 73 ft (22.3 m) and a deck 28 ft wide.

Who owns Ramp F (nj 18) over Nj Rt 18 and Ramp Gs?

It is owned by the State Highway Agency.