US Bridges

Kingwood Av (NJ12) over Little Nishisakawick Ck.

Fair

Hunterdon County, New Jersey · 0.7 Mile East of Nj 29 · Structure no. 100P172

Built
1940
85 years old
Condition
Fair
inspected March 2023
Type
Arch - Deck
Concrete
Length
35 ft
1 main span
Daily traffic
5,779
2023 count
Owner
County
County Highway Agency

About this bridge

Kingwood Av (NJ12) over Little Nishisakawick Ck. is a concrete arch - deck carrying Kingwood Av (NJ12) over Little Nishisakawick Ck. in Hunterdon County, New Jersey. It was built in 1940, so it is 85 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 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 5,779 vehicles a day, roughly 4% of them trucks, projected to reach 7,052 by 2043. The structure is 35 ft (10.7 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesKingwood Av (NJ12)
CrossesLittle Nishisakawick Ck.
Location0.7 Mile East of Nj 29
RouteCounty Highway 610
CountyHunterdon County
StateNew Jersey
Coordinates40.52283, -75.04999
Functional classRural Minor Arterial

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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.1 US tons
Inventory rating29 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span35 ft (10.7 m)
Deck width34 ft (10.3 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,779 (2023)
Projected traffic7,052 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Kingwood Av (NJ12) over Little Nishisakawick Ck. built?

It was built in 1940, making it 85 years old in 2025.

What condition is Kingwood Av (NJ12) over Little Nishisakawick Ck. 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 Kingwood Av (NJ12) over Little Nishisakawick Ck. carry?

About 5,779 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Kingwood Av (NJ12) over Little Nishisakawick Ck.?

The structure is 35 ft (10.7 m) long with a longest span of 35 ft (10.7 m) and a deck 34 ft wide.

Who owns Kingwood Av (NJ12) over Little Nishisakawick Ck.?

It is owned by the County Highway Agency.