US Bridges

Nj 31 over Bushkill Creek

Good

Hunterdon County, New Jersey · 0.29 MI S. of Rt 523 Jct. · Structure no. 1012152

Built
2004
21 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
23,266
2022 count
Owner
State
State Highway Agency

About this bridge

Nj 31 over Bushkill Creek is a concrete culvert carrying Nj 31 over Bushkill Creek in Hunterdon County, New Jersey. It was built in 2004, so it is 21 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 23,266 vehicles a day, roughly 4% of them trucks, projected to reach 27,919 by 2042. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNj 31
CrossesBushkill Creek
Location0.29 MI S. of Rt 523 Jct.
RouteState Highway 31
Coordinates40.5187, -74.85378
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating97.1 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 traffic23,266 (2022)
Projected traffic27,919 by 2042
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Nj 31 over Bushkill Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is Nj 31 over Bushkill Creek 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 July 2024.

How much traffic does Nj 31 over Bushkill Creek carry?

About 23,266 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Nj 31 over Bushkill Creek?

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

Who owns Nj 31 over Bushkill Creek?

It is owned by the State Highway Agency.