US Bridges

Nj Route 18 over Int. 9 Ramps Te & Wt

Good

Middlesex County, New Jersey · 0.6 MI S of US 1 · Structure no. I8334BR

Built
2015
10 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
86 ft
1 main span
Daily traffic
109,819
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Nj Route 18 over Int. 9 Ramps Te & Wt is a steel stringer/multi-beam or girder carrying Nj Route 18 over Int. 9 Ramps Te & Wt in Middlesex County, New Jersey. It was built in 2015, so it is 10 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 109,819 vehicles a day, roughly 4% of them trucks, projected to reach 134,001 by 2043. The structure is 86 ft (26.2 m) long and 150 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNj Route 18
CrossesInt. 9 Ramps Te & Wt
Location0.6 MI S of US 1
RouteState Highway 18
Coordinates40.47778, -74.41017
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating48.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length86 ft (26.2 m)
Longest span84 ft (25.6 m)
Deck width150 ft (45.7 m)
Roadway width134 ft (40.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic109,819 (2023)
Projected traffic134,001 by 2043
Trucks4%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 Nj Route 18 over Int. 9 Ramps Te & Wt built?

It was built in 2015, making it 10 years old in 2025.

What condition is Nj Route 18 over Int. 9 Ramps Te & Wt 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 April 2023.

How much traffic does Nj Route 18 over Int. 9 Ramps Te & Wt carry?

About 109,819 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Nj Route 18 over Int. 9 Ramps Te & Wt?

The structure is 86 ft (26.2 m) long with a longest span of 84 ft (25.6 m) and a deck 150 ft wide.

Who owns Nj Route 18 over Int. 9 Ramps Te & Wt?

It is owned by the State Toll Authority.