US Bridges

Nj 18 Service over Voorhees ST

Fair

Middlesex County, New Jersey · Nj 172 & Nj 18 Jct. · Structure no. 1229150

Built
2009
16 years old
Condition
Fair
inspected March 2023
Type
Arch - Deck
Concrete
Length
600 ft
8 main spans
Daily traffic
20,127
2023 count
Owner
State
State Highway Agency

About this bridge

Nj 18 Service over Voorhees ST is a concrete arch - deck carrying Nj 18 Service over Voorhees ST in Middlesex County, New Jersey. It was built in 2009, so it is 16 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 20,127 vehicles a day, roughly 4% of them trucks, projected to reach 24,582 by 2043. The structure is 600 ft (182.9 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNj 18 Service
CrossesVoorhees ST
LocationNj 172 & Nj 18 Jct.
RouteState Highway 18
CountyMiddlesex County
StateNew Jersey
Coordinates40.48701, -74.43126
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans8 (+1 approach)
Design loadHS 25 or greater
Structure length600 ft (182.9 m)
Longest span600 ft (182.9 m)
Deck width61 ft (18.5 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,127 (2023)
Projected traffic24,582 by 2043
Trucks4%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nj 18 Service over Voorhees ST built?

It was built in 2009, making it 16 years old in 2025.

What condition is Nj 18 Service over Voorhees ST 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 18 Service over Voorhees ST carry?

About 20,127 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Nj 18 Service over Voorhees ST?

The structure is 600 ft (182.9 m) long with a longest span of 600 ft (182.9 m) and a deck 61 ft wide.

Who owns Nj 18 Service over Voorhees ST?

It is owned by the State Highway Agency.