US Bridges

Nj 81 over US 1 Ramp G

Fair

Union County, New Jersey · 0.9 MI N of Njtpk Ex 13A · Structure no. 2019152

Built
1982
43 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
83 ft
1 main span
Daily traffic
74,500
2023 count
Owner
State
State Highway Agency

About this bridge

Nj 81 over US 1 Ramp G is a steel stringer/multi-beam or girder carrying Nj 81 over US 1 Ramp G in Union 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 74,500 vehicles a day, roughly 5% of them trucks, projected to reach 89,400 by 2043. The structure is 83 ft (25.3 m) long and 114 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNj 81
CrossesUS 1 Ramp G
Location0.9 MI N of Njtpk Ex 13A
RouteState Highway 81
Coordinates40.67705, -74.19145
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating65 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length83 ft (25.3 m)
Longest span77 ft (23.5 m)
Deck width114 ft (34.8 m)
Roadway width108 ft (32.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic74,500 (2023)
Projected traffic89,400 by 2043
Trucks5%
Lanes on structure6
Traffic directionTwo-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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nj 81 over US 1 Ramp G built?

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

What condition is Nj 81 over US 1 Ramp G 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 81 over US 1 Ramp G carry?

About 74,500 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Nj 81 over US 1 Ramp G?

The structure is 83 ft (25.3 m) long with a longest span of 77 ft (23.5 m) and a deck 114 ft wide.

Who owns Nj 81 over US 1 Ramp G?

It is owned by the State Highway Agency.