US Bridges

East Dukes Pkwy over Dukes Brook

Fair

Somerset County, New Jersey · 0.12 Mile East of US 206 · Structure no. 18F0703

Built
1995
30 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
9,521
2023 count
Owner
County
County Highway Agency

About this bridge

East Dukes Pkwy over Dukes Brook is a prestressed concrete box beam or girders - single or spread carrying East Dukes Pkwy over Dukes Brook in Somerset County, New Jersey. It was built in 1995, so it is 30 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 9,521 vehicles a day, roughly 3% of them trucks, projected to reach 11,425 by 2043. The structure is 35 ft (10.7 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesEast Dukes Pkwy
CrossesDukes Brook
Location0.12 Mile East of US 206
RouteCounty Highway 608
CountySomerset County
StateNew Jersey
Coordinates40.55396, -74.61344
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 protection6 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
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating78 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length35 ft (10.7 m)
Longest span31 ft (9.4 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,521 (2023)
Projected traffic11,425 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 East Dukes Pkwy over Dukes Brook built?

It was built in 1995, making it 30 years old in 2025.

What condition is East Dukes Pkwy over Dukes 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 East Dukes Pkwy over Dukes Brook carry?

About 9,521 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is East Dukes Pkwy over Dukes Brook?

The structure is 35 ft (10.7 m) long with a longest span of 31 ft (9.4 m) and a deck 44 ft wide.

Who owns East Dukes Pkwy over Dukes Brook?

It is owned by the County Highway Agency.