US Bridges

I-287 over NJT (raritan Valley)

Fair

Somerset County, New Jersey · 0.7 MI South of Nj 28 JCT · Structure no. 1812159

Built
1960
65 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
213 ft
4 main spans
Daily traffic
148,249
2022 count
Owner
State
State Highway Agency

About this bridge

I-287 over NJT (raritan Valley) is a steel stringer/multi-beam or girder carrying I-287 over NJT (raritan Valley) in Somerset County, New Jersey. It was built in 1960, so it is 65 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 148,249 vehicles a day, roughly 9% of them trucks, projected to reach 177,899 by 2042. The structure is 213 ft (64.9 m) long and 110 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesI-287
CrossesNJT (raritan Valley)
Location0.7 MI South of Nj 28 JCT
RouteInterstate 287
CountySomerset County
StateNew Jersey
Coordinates40.5598, -74.54852
Functional classUrban Principal Arterial - Interstate

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88 US tons
Inventory rating52 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length213 ft (64.9 m)
Longest span94 ft (28.7 m)
Deck width110 ft (33.5 m)
Roadway width102 ft (31.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic148,249 (2022)
Projected traffic177,899 by 2042
Trucks9%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-287 over NJT (raritan Valley) built?

It was built in 1960, making it 65 years old in 2025.

What condition is I-287 over NJT (raritan Valley) 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 2024.

How much traffic does I-287 over NJT (raritan Valley) carry?

About 148,249 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is I-287 over NJT (raritan Valley)?

The structure is 213 ft (64.9 m) long with a longest span of 94 ft (28.7 m) and a deck 110 ft wide.

Who owns I-287 over NJT (raritan Valley)?

It is owned by the State Highway Agency.