US Bridges

Bridge ST over Delaware River

FairPosted for load

Hunterdon County, New Jersey · Bridge ST · Structure no. 3300120

Built
1904
121 years old, rebuilt 2004
Condition
Fair
inspected April 2024
Type
Truss - Thru
Steel
Length
1,056 ft
6 main spans
Daily traffic
14,115
2020 count
Owner
Toll Authority
Local Toll Authority

About this bridge

Bridge ST over Delaware River is a steel truss - thru carrying Bridge ST over Delaware River in Hunterdon County, New Jersey. It was built in 1904 and reconstructed in 2004, so it is 121 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 14,115 vehicles a day, projected to reach 17,223 by 2040. The structure is 1,056 ft (321.9 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesBridge ST
CrossesDelaware River
LocationBridge ST
RouteState Highway 179
CountyHunterdon County
StateNew Jersey
Coordinates40.3649, -74.9488
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating25.2 US tons
Inventory rating19.1 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckOpen grating
Main spans6
Design loadUnknown
Structure length1,056 ft (321.9 m)
Longest span171 ft (52.1 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deck14 ft (4.2 m)

Traffic and service

Average daily traffic14,115 (2020)
Projected traffic17,223 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
Historic statusListed on the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Bridge ST over Delaware River built?

It was built in 1904, making it 121 years old in 2025. It was reconstructed in 2004.

What condition is Bridge ST over Delaware River 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 April 2024.

How much traffic does Bridge ST over Delaware River carry?

About 14,115 vehicles per day (2020 count).

How long is Bridge ST over Delaware River?

The structure is 1,056 ft (321.9 m) long with a longest span of 171 ft (52.1 m) and a deck 22 ft wide.

Who owns Bridge ST over Delaware River?

It is owned by the Local Toll Authority.