US Bridges

County Route 618 over Beaver Brook

Fair

Warren County, New Jersey · At Int. of US 46 · Structure no. 2102302

Built
1913
112 years old
Condition
Fair
inspected April 2023
Type
Arch - Deck
Concrete
Length
43 ft
1 main span
Daily traffic
651
2023 count
Owner
County
County Highway Agency

About this bridge

County Route 618 over Beaver Brook is a concrete arch - deck carrying County Route 618 over Beaver Brook in Warren County, New Jersey. It was built in 1913, so it is 112 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 651 vehicles a day, roughly 3% of them trucks, projected to reach 794 by 2043. The structure is 43 ft (13.1 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesCounty Route 618
CrossesBeaver Brook
LocationAt Int. of US 46
RouteCounty Highway 618
CountyWarren County
StateNew Jersey
Coordinates40.84173, -75.04906
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46 US tons
Inventory rating28 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length43 ft (13.1 m)
Longest span40 ft (12.2 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic651 (2023)
Projected traffic794 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Route 618 over Beaver Brook built?

It was built in 1913, making it 112 years old in 2025.

What condition is County Route 618 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 April 2023.

How much traffic does County Route 618 over Beaver Brook carry?

About 651 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is County Route 618 over Beaver Brook?

The structure is 43 ft (13.1 m) long with a longest span of 40 ft (12.2 m) and a deck 27 ft wide.

Who owns County Route 618 over Beaver Brook?

It is owned by the County Highway Agency.