US Bridges

I-287 over Ambrose Brook

Fair

Middlesex County, New Jersey · 0.06 Mi. S. of Int. 8 · Structure no. 1231165

Built
1961
64 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
51 ft
2 main spans
Daily traffic
128,138
2023 count
Owner
State
State Highway Agency

About this bridge

I-287 over Ambrose Brook is a concrete culvert carrying I-287 over Ambrose Brook in Middlesex County, New Jersey. It was built in 1961, 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 128,138 vehicles a day, roughly 9% of them trucks, projected to reach 156,352 by 2043. The structure is 51 ft (15.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-287
CrossesAmbrose Brook
Location0.06 Mi. S. of Int. 8
RouteInterstate 287
CountyMiddlesex County
StateNew Jersey
Coordinates40.55405, -74.48293
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 inspectionApril 2023
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 rating94 US tons
Inventory rating56 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span22 ft (6.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic128,138 (2023)
Projected traffic156,352 by 2043
Trucks9%
Lanes on structure8
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 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 Ambrose Brook built?

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

What condition is I-287 over Ambrose 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 April 2023.

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

About 128,138 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is I-287 over Ambrose Brook?

The structure is 51 ft (15.5 m) long with a longest span of 22 ft (6.7 m).

Who owns I-287 over Ambrose Brook?

It is owned by the State Highway Agency.