US Bridges

North Munn Avenue over I-280

Poor

Essex County, New Jersey · 0.1 MI W of I-280-GSP JCT · Structure no. 0730168

Built
1966
59 years old
Condition
Poor
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
220 ft
2 main spans
Daily traffic
5,385
2023 count
Owner
State
State Highway Agency

About this bridge

North Munn Avenue over I-280 is a steel stringer/multi-beam or girder carrying North Munn Avenue 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 5,385 vehicles a day, roughly 4% of them trucks, projected to reach 6,445 by 2043. The structure is 220 ft (67.1 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesNorth Munn Avenue
CrossesI-280
Location0.1 MI W of I-280-GSP JCT
RouteCity Street 0
CountyEssex County
StateNew Jersey
Coordinates40.75957, -74.20993
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
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 rating54 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length220 ft (67.1 m)
Longest span109 ft (33.2 m)
Deck width64 ft (19.5 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,385 (2023)
Projected traffic6,445 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 SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$3 million (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was North Munn Avenue over I-280 built?

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

What condition is North Munn Avenue over I-280 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.

How much traffic does North Munn Avenue over I-280 carry?

About 5,385 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is North Munn Avenue over I-280?

The structure is 220 ft (67.1 m) long with a longest span of 109 ft (33.2 m) and a deck 64 ft wide.

Who owns North Munn Avenue over I-280?

It is owned by the State Highway Agency.