US Bridges

I-287 over Troy Brook

Fair

Morris County, New Jersey · 0.26 Mi. No. of I-80. · Structure no. 1420156

Built
1962
63 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
36 ft
2 main spans
Daily traffic
63,891
2024 count
Owner
State
State Highway Agency

About this bridge

I-287 over Troy Brook is a concrete culvert carrying I-287 over Troy Brook in Morris County, New Jersey. It was built in 1962, so it is 63 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 63,891 vehicles a day, roughly 9% of them trucks, projected to reach 76,669 by 2044. The structure is 36 ft (11 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesI-287
CrossesTroy Brook
Location0.26 Mi. No. of I-80.
RouteInterstate 287
CountyMorris County
StateNew Jersey
Coordinates40.86799, -74.41741
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length36 ft (11 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic63,891 (2024)
Projected traffic76,669 by 2044
Trucks9%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-287 over Troy Brook built?

It was built in 1962, making it 63 years old in 2025.

What condition is I-287 over Troy Brook 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 February 2024.

How much traffic does I-287 over Troy Brook carry?

About 63,891 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is I-287 over Troy Brook?

The structure is 36 ft (11 m) long with a longest span of 16 ft (4.9 m).

Who owns I-287 over Troy Brook?

It is owned by the State Highway Agency.