US Bridges

Route I-287 S.B. over Elizabeth Ave (cr 621)

Fair

Somerset County, New Jersey · 0.8 M South of Canal RD · Structure no. 1812156

Built
1961
64 years old, rebuilt 1986
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
141 ft
3 main spans
Daily traffic
120,175
2023 count
Owner
State
State Highway Agency

About this bridge

Route I-287 S.B. over Elizabeth Ave (cr 621) is a prestressed concrete stringer/multi-beam or girder carrying Route I-287 S.B. over Elizabeth Ave (cr 621) in Somerset County, New Jersey. It was built in 1961 and reconstructed in 1986, so it is 64 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 120,175 vehicles a day, roughly 9% of them trucks, projected to reach 146,635 by 2043. The structure is 141 ft (43 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRoute I-287 S.B.
CrossesElizabeth Ave (cr 621)
Location0.8 M South of Canal RD
RouteInterstate 287
CountySomerset County
StateNew Jersey
Coordinates40.54457, -74.53437
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.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length141 ft (43 m)
Longest span69 ft (21 m)
Deck width55 ft (16.8 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120,175 (2023)
Projected traffic146,635 by 2043
Trucks9%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 Route I-287 S.B. over Elizabeth Ave (cr 621) built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1986.

What condition is Route I-287 S.B. over Elizabeth Ave (cr 621) 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 2023.

How much traffic does Route I-287 S.B. over Elizabeth Ave (cr 621) carry?

About 120,175 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Route I-287 S.B. over Elizabeth Ave (cr 621)?

The structure is 141 ft (43 m) long with a longest span of 69 ft (21 m) and a deck 55 ft wide.

Who owns Route I-287 S.B. over Elizabeth Ave (cr 621)?

It is owned by the State Highway Agency.