US Bridges

I-80 over Trout Brook

Fair

Warren County, New Jersey · 1.06 MI East of Exit 12 · Structure no. 2116152

Built
1967
58 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete Continuous
Length
34 ft
2 main spans
Daily traffic
53,033
2024 count
Owner
State
State Highway Agency

About this bridge

I-80 over Trout Brook is a concrete continuous culvert carrying I-80 over Trout Brook in Warren County, New Jersey. It was built in 1967, so it is 58 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 53,033 vehicles a day, roughly 14% of them trucks, projected to reach 69,851 by 2042. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesI-80
CrossesTrout Brook
Location1.06 MI East of Exit 12
RouteInterstate 80
CountyWarren County
StateNew Jersey
Coordinates40.92517, -74.93942
Functional classRural 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length34 ft (10.4 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 traffic53,033 (2024)
Projected traffic69,851 by 2042
Trucks14%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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-80 over Trout Brook built?

It was built in 1967, making it 58 years old in 2025.

What condition is I-80 over Trout 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 2024.

How much traffic does I-80 over Trout Brook carry?

About 53,033 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is I-80 over Trout Brook?

The structure is 34 ft (10.4 m) long with a longest span of 16 ft (4.9 m).

Who owns I-80 over Trout Brook?

It is owned by the State Highway Agency.