US Bridges

Lower Kingtown RD over Capoolong Creek

Poor

Hunterdon County, New Jersey · 0.5 Mile East of CR 513 · Structure no. 10XXF54

Built
1925
100 years old, rebuilt 1999
Condition
Poor
inspected June 2023
Type
Truss - Thru
Steel
Length
53 ft
1 main span
Daily traffic
828
2023 count
Owner
County
County Highway Agency

About this bridge

Lower Kingtown RD over Capoolong Creek is a steel truss - thru carrying Lower Kingtown RD over Capoolong Creek in Hunterdon County, New Jersey. It was built in 1925 and reconstructed in 1999, so it is 100 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 828 vehicles a day, roughly 3% of them trucks, projected to reach 993 by 2043. The structure is 53 ft (16.2 m) long and 14 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLower Kingtown RD
CrossesCapoolong Creek
Location0.5 Mile East of CR 513
Coordinates40.59471, -74.93848
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating74 US tons
Inventory rating44 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length53 ft (16.2 m)
Longest span52 ft (15.8 m)
Deck width14 ft (4.4 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic828 (2023)
Projected traffic993 by 2043
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.1 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lower Kingtown RD over Capoolong Creek built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1999.

What condition is Lower Kingtown RD over Capoolong Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2023.

How much traffic does Lower Kingtown RD over Capoolong Creek carry?

About 828 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Lower Kingtown RD over Capoolong Creek?

The structure is 53 ft (16.2 m) long with a longest span of 52 ft (15.8 m) and a deck 14 ft wide.

Who owns Lower Kingtown RD over Capoolong Creek?

It is owned by the County Highway Agency.