US Bridges

I-80 over Beaver Brook

Fair

Warren County, New Jersey · 0.1 MI West of Route 521 · Structure no. 2115170

Built
1970
55 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete Continuous
Length
38 ft
2 main spans
Daily traffic
51,739
2023 count
Owner
State
State Highway Agency

About this bridge

I-80 over Beaver Brook is a concrete continuous culvert carrying I-80 over Beaver Brook in Warren County, New Jersey. It was built in 1970, so it is 55 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 51,739 vehicles a day, roughly 14% of them trucks, projected to reach 63,132 by 2043. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesI-80
CrossesBeaver Brook
Location0.1 MI West of Route 521
RouteInterstate 80
CountyWarren County
StateNew Jersey
Coordinates40.92468, -74.96132
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span18 ft (5.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51,739 (2023)
Projected traffic63,132 by 2043
Trucks14%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Beaver Brook built?

It was built in 1970, making it 55 years old in 2025.

What condition is I-80 over Beaver 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 September 2023.

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

About 51,739 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is I-80 over Beaver Brook?

The structure is 38 ft (11.6 m) long with a longest span of 18 ft (5.5 m).

Who owns I-80 over Beaver Brook?

It is owned by the State Highway Agency.