US Bridges

Leigh Street over Beaver Brook

Good

Hunterdon County, New Jersey · At Nj 173 JCT · Structure no. 1000098

Built
2003
22 years old
Condition
Good
inspected April 2023
Type
Frame
Concrete
Length
38 ft
1 main span
Daily traffic
3,874
2023 count
Owner
County
County Highway Agency

About this bridge

Leigh Street over Beaver Brook is a concrete frame carrying Leigh Street over Beaver Brook in Hunterdon County, New Jersey. It was built in 2003, so it is 22 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 3,874 vehicles a day, roughly 4% of them trucks, projected to reach 4,727 by 2043. The structure is 38 ft (11.6 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLeigh Street
CrossesBeaver Brook
LocationAt Nj 173 JCT
RouteCity Street 0
Coordinates40.63633, -74.90956
Functional classUrban Minor 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71 US tons
Inventory rating42 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length38 ft (11.6 m)
Longest span38 ft (11.6 m)
Deck width52 ft (16 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,874 (2023)
Projected traffic4,727 by 2043
Trucks4%
Lanes on structure3
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 Leigh Street over Beaver Brook built?

It was built in 2003, making it 22 years old in 2025.

What condition is Leigh Street over Beaver Brook 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 April 2023.

How much traffic does Leigh Street over Beaver Brook carry?

About 3,874 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Leigh Street over Beaver Brook?

The structure is 38 ft (11.6 m) long with a longest span of 38 ft (11.6 m) and a deck 52 ft wide.

Who owns Leigh Street over Beaver Brook?

It is owned by the County Highway Agency.