US Bridges

Washington Ave over I-287

Fair

Somerset County, New Jersey · 1.93 MI North of Exit 26 · Structure no. 1815174

Built
1966
59 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
226 ft
2 main spans
Daily traffic
2,309
2023 count
Owner
State
State Highway Agency

About this bridge

Washington Ave over I-287 is a steel stringer/multi-beam or girder carrying Washington Ave over I-287 in Somerset 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 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 2,309 vehicles a day, roughly 1% of them trucks, projected to reach 2,971 by 2043. The structure is 226 ft (68.9 m) long and 45 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesWashington Ave
CrossesI-287
Location1.93 MI North of Exit 26
RouteCity Street 0
CountySomerset County
StateNew Jersey
Coordinates40.71189, -74.55726
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length226 ft (68.9 m)
Longest span110 ft (33.5 m)
Deck width45 ft (13.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,309 (2023)
Projected traffic2,971 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Washington Ave over I-287 built?

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

What condition is Washington Ave over I-287 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 May 2023.

How much traffic does Washington Ave over I-287 carry?

About 2,309 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Washington Ave over I-287?

The structure is 226 ft (68.9 m) long with a longest span of 110 ft (33.5 m) and a deck 45 ft wide.

Who owns Washington Ave over I-287?

It is owned by the State Highway Agency.