US Bridges

Nj 28 over I-287

Fair

Somerset County, New Jersey · Intersection With I-287 · Structure no. 1806153

Built
1960
65 years old, rebuilt 1999
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
363 ft
4 main spans
Daily traffic
21,644
2024 count
Owner
State
State Highway Agency

About this bridge

Nj 28 over I-287 is a steel stringer/multi-beam or girder carrying Nj 28 over I-287 in Somerset County, New Jersey. It was built in 1960 and reconstructed in 1999, 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 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 21,644 vehicles a day, roughly 4% of them trucks, projected to reach 32,466 by 2044. The structure is 363 ft (110.6 m) long and 92 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNj 28
CrossesI-287
LocationIntersection With I-287
RouteState Highway 28
CountySomerset County
StateNew Jersey
Coordinates40.56794, -74.55727
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating48 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length363 ft (110.6 m)
Longest span123 ft (37.5 m)
Deck width92 ft (28 m)
Roadway width81 ft (24.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,644 (2024)
Projected traffic32,466 by 2044
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed5 mi (8 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$49,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nj 28 over I-287 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1999.

What condition is Nj 28 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 April 2024.

How much traffic does Nj 28 over I-287 carry?

About 21,644 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Nj 28 over I-287?

The structure is 363 ft (110.6 m) long with a longest span of 123 ft (37.5 m) and a deck 92 ft wide.

Who owns Nj 28 over I-287?

It is owned by the State Highway Agency.