US Bridges

I-287 over Whippany River

Fair

Morris County, New Jersey · 0.17 MI No of WB CR 510 · Structure no. 1419183

Built
1973
52 years old, rebuilt 1996
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
124,400
2023 count
Owner
State
State Highway Agency

About this bridge

I-287 over Whippany River is a steel stringer/multi-beam or girder carrying I-287 over Whippany River in Morris County, New Jersey. It was built in 1973 and reconstructed in 1996, so it is 52 years old, younger 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 124,400 vehicles a day, roughly 9% of them trucks, projected to reach 149,300 by 2043. The structure is 51 ft (15.5 m) long and 160 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-287
CrossesWhippany River
Location0.17 MI No of WB CR 510
RouteInterstate 287
CountyMorris County
StateNew Jersey
Coordinates40.80018, -74.46554
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length51 ft (15.5 m)
Longest span47 ft (14.3 m)
Deck width160 ft (48.7 m)
Roadway width144 ft (44 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic124,400 (2023)
Projected traffic149,300 by 2043
Trucks9%
Lanes on structure11
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-287 over Whippany River built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 1996.

What condition is I-287 over Whippany River 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 I-287 over Whippany River carry?

About 124,400 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is I-287 over Whippany River?

The structure is 51 ft (15.5 m) long with a longest span of 47 ft (14.3 m) and a deck 160 ft wide.

Who owns I-287 over Whippany River?

It is owned by the State Highway Agency.