US Bridges

Nj 31 over Shabbecong Creek.

Good

Warren County, New Jersey · 0.07 MI S of Rt 57 Jct. · Structure no. 2110155

Built
1930
95 years old, rebuilt 2012
Condition
Good
inspected September 2024
Type
Slab
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
18,430
2024 count
Owner
State
State Highway Agency

About this bridge

Nj 31 over Shabbecong Creek. is a prestressed concrete slab carrying Nj 31 over Shabbecong Creek. in Warren County, New Jersey. It was built in 1930 and reconstructed in 2012, so it is 95 years old, older 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 18,430 vehicles a day, roughly 4% of them trucks, projected to reach 22,480 by 2044. The structure is 46 ft (14 m) long and 72 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNj 31
CrossesShabbecong Creek.
Location0.07 MI S of Rt 57 Jct.
RouteState Highway 31
Coordinates40.75848, -74.97499
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.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating45.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length46 ft (14 m)
Longest span39 ft (11.9 m)
Deck width72 ft (22 m)
Roadway width56 ft (17.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,430 (2024)
Projected traffic22,480 by 2044
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nj 31 over Shabbecong Creek. built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 2012.

What condition is Nj 31 over Shabbecong Creek. 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 September 2024.

How much traffic does Nj 31 over Shabbecong Creek. carry?

About 18,430 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Nj 31 over Shabbecong Creek.?

The structure is 46 ft (14 m) long with a longest span of 39 ft (11.9 m) and a deck 72 ft wide.

Who owns Nj 31 over Shabbecong Creek.?

It is owned by the State Highway Agency.