US Bridges

Northfield Ave over I-280

Fair

Essex County, New Jersey · 2.2 MI W of I-280-GSP JCT · Structure no. 0730154

Built
1971
54 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
181 ft
2 main spans
Daily traffic
17,994
2023 count
Owner
State
State Highway Agency

About this bridge

Northfield Ave over I-280 is a steel stringer/multi-beam or girder carrying Northfield Ave over I-280 in Essex County, New Jersey. It was built in 1971, so it is 54 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 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 17,994 vehicles a day, roughly 4% of them trucks, projected to reach 21,593 by 2043. The structure is 181 ft (55.2 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesNorthfield Ave
CrossesI-280
Location2.2 MI W of I-280-GSP JCT
RouteCounty Highway 508
CountyEssex County
StateNew Jersey
Coordinates40.77608, -74.24198
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating24 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length181 ft (55.2 m)
Longest span102 ft (31.1 m)
Deck width64 ft (19.5 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,994 (2023)
Projected traffic21,593 by 2043
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$3.1 million (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Northfield Ave over I-280 built?

It was built in 1971, making it 54 years old in 2025.

What condition is Northfield Ave 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 June 2023.

How much traffic does Northfield Ave over I-280 carry?

About 17,994 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Northfield Ave over I-280?

The structure is 181 ft (55.2 m) long with a longest span of 102 ft (31.1 m) and a deck 64 ft wide.

Who owns Northfield Ave over I-280?

It is owned by the State Highway Agency.