US Bridges

Nj 179 over Alexauken Creek

Fair

Hunterdon County, New Jersey · 3.38 MI N of Nj 29 JCT · Structure no. 1020150

Built
1929
96 years old, rebuilt 2005
Condition
Fair
inspected January 2024
Type
Slab
Prestressed Concrete
Length
95 ft
3 main spans
Daily traffic
5,411
2024 count
Owner
State
State Highway Agency

About this bridge

Nj 179 over Alexauken Creek is a prestressed concrete slab carrying Nj 179 over Alexauken Creek in Hunterdon County, New Jersey. It was built in 1929 and reconstructed in 2005, so it is 96 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 5 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 5,411 vehicles a day, roughly 4% of them trucks, projected to reach 6,493 by 2044. The structure is 95 ft (29 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNj 179
CrossesAlexauken Creek
Location3.38 MI N of Nj 29 JCT
RouteState Highway 179
CountyHunterdon County
StateNew Jersey
Coordinates40.40337, -74.90398
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating67.5 US tons
Inventory rating52.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length95 ft (29 m)
Longest span29 ft (8.8 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,411 (2024)
Projected traffic6,493 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 179 over Alexauken Creek built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 2005.

What condition is Nj 179 over Alexauken Creek 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 January 2024.

How much traffic does Nj 179 over Alexauken Creek carry?

About 5,411 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Nj 179 over Alexauken Creek?

The structure is 95 ft (29 m) long with a longest span of 29 ft (8.8 m) and a deck 43 ft wide.

Who owns Nj 179 over Alexauken Creek?

It is owned by the State Highway Agency.