US Bridges

Carlton Avenue over West Br. Shabakunk Crk

Good

Mercer County, New Jersey · 0.6 Mile West of Rt. 31 · Structure no. 1104416

Built
2013
12 years old
Condition
Good
inspected March 2023
Type
Frame
Concrete
Length
23 ft
1 main span
Daily traffic
4,040
2023 count
Owner
County
County Highway Agency

About this bridge

Carlton Avenue over West Br. Shabakunk Crk is a concrete frame carrying Carlton Avenue over West Br. Shabakunk Crk in Mercer County, New Jersey. It was built in 2013, so it is 12 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 4,040 vehicles a day, roughly 3% of them trucks, projected to reach 4,930 by 2043. The structure is 23 ft (7 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesCarlton Avenue
CrossesWest Br. Shabakunk Crk
Location0.6 Mile West of Rt. 31
CountyMercer County
StateNew Jersey
Coordinates40.26903, -74.79395
Functional classUrban Collector

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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42.5 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length23 ft (7 m)
Longest span22 ft (6.7 m)
Deck width34 ft (10.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,040 (2023)
Projected traffic4,930 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Carlton Avenue over West Br. Shabakunk Crk built?

It was built in 2013, making it 12 years old in 2025.

What condition is Carlton Avenue over West Br. Shabakunk Crk 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 March 2023.

How much traffic does Carlton Avenue over West Br. Shabakunk Crk carry?

About 4,040 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Carlton Avenue over West Br. Shabakunk Crk?

The structure is 23 ft (7 m) long with a longest span of 22 ft (6.7 m) and a deck 34 ft wide.

Who owns Carlton Avenue over West Br. Shabakunk Crk?

It is owned by the County Highway Agency.