US Bridges

South Walnut St. over I-280

Fair

Essex County, New Jersey · 0.3 MI W of 280-GSP JCT · Structure no. 0730166

Built
1966
59 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
176 ft
3 main spans
Daily traffic
4,901
2024 count
Owner
State
State Highway Agency

About this bridge

South Walnut St. over I-280 is a steel stringer/multi-beam or girder carrying South Walnut St. over I-280 in Essex County, New Jersey. It was built in 1966, so it is 59 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.

It carries about 4,901 vehicles a day, roughly 1% of them trucks, projected to reach 5,980 by 2044. The structure is 176 ft (53.6 m) long and 56 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSouth Walnut St.
CrossesI-280
Location0.3 MI W of 280-GSP JCT
RouteCity Street 0
Coordinates40.76168, -74.21396
Functional classUrban Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95 US tons
Inventory rating57 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length176 ft (53.6 m)
Longest span86 ft (26.2 m)
Deck width56 ft (17.1 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,901 (2024)
Projected traffic5,980 by 2044
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$8.4 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was South Walnut St. over I-280 built?

It was built in 1966, making it 59 years old in 2025.

What condition is South Walnut St. over I-280 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 2024.

How much traffic does South Walnut St. over I-280 carry?

About 4,901 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is South Walnut St. over I-280?

The structure is 176 ft (53.6 m) long with a longest span of 86 ft (26.2 m) and a deck 56 ft wide.

Who owns South Walnut St. over I-280?

It is owned by the State Highway Agency.