US Bridges

County Route 523 over Pleasant Run

Fair

Hunterdon County, New Jersey · @ Intersect. With CR 629 · Structure no. 1000015

Built
1994
31 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
9,835
2023 count
Owner
County
County Highway Agency

About this bridge

County Route 523 over Pleasant Run is a concrete culvert carrying County Route 523 over Pleasant Run in Hunterdon County, New Jersey. It was built in 1994, so it is 31 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 9,835 vehicles a day, roughly 4% of them trucks, projected to reach 12,000 by 2043. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCounty Route 523
CrossesPleasant Run
Location@ Intersect. With CR 629
RouteCounty Highway 523
CountyHunterdon County
StateNew Jersey
Coordinates40.56961, -74.81364
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 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 evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating75 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,835 (2023)
Projected traffic12,000 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 County Route 523 over Pleasant Run built?

It was built in 1994, making it 31 years old in 2025.

What condition is County Route 523 over Pleasant Run 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 County Route 523 over Pleasant Run carry?

About 9,835 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is County Route 523 over Pleasant Run?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m).

Who owns County Route 523 over Pleasant Run?

It is owned by the County Highway Agency.