US Bridges

CR 652 (allen Rd) over Dead River

Fair

Somerset County, New Jersey · .41 MI W of Cnty Rt 525 · Structure no. 18G1105

Built
2005
20 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
77 ft
1 main span
Daily traffic
6,902
2023 count
Owner
County
County Highway Agency

About this bridge

CR 652 (allen Rd) over Dead River is a steel stringer/multi-beam or girder carrying CR 652 (allen Rd) over Dead River in Somerset County, New Jersey. It was built in 2005, so it is 20 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 6,902 vehicles a day, roughly 3% of them trucks, projected to reach 8,282 by 2043. The structure is 77 ft (23.5 m) long and 61 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCR 652 (allen Rd)
CrossesDead River
Location.41 MI W of Cnty Rt 525
RouteCounty Highway 652
CountySomerset County
StateNew Jersey
Coordinates40.65196, -74.58238
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
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
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating84 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length77 ft (23.5 m)
Longest span71 ft (21.6 m)
Deck width61 ft (18.5 m)
Roadway width51 ft (15.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,902 (2023)
Projected traffic8,282 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

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

Frequently asked questions

When was CR 652 (allen Rd) over Dead River built?

It was built in 2005, making it 20 years old in 2025.

What condition is CR 652 (allen Rd) over Dead River 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 CR 652 (allen Rd) over Dead River carry?

About 6,902 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is CR 652 (allen Rd) over Dead River?

The structure is 77 ft (23.5 m) long with a longest span of 71 ft (21.6 m) and a deck 61 ft wide.

Who owns CR 652 (allen Rd) over Dead River?

It is owned by the County Highway Agency.