US Bridges

US 206 over Branch of Dukes Brook

Fair

Somerset County, New Jersey · 0.28M N. of Dukes Pky W. · Structure no. 1810180

Built
2003
22 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
34 ft
2 main spans
Daily traffic
31,490
2024 count
Owner
State
State Highway Agency

About this bridge

US 206 over Branch of Dukes Brook is a concrete culvert carrying US 206 over Branch of Dukes Brook in Somerset County, New Jersey. It was built in 2003, so it is 22 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 31,490 vehicles a day, roughly 4% of them trucks, projected to reach 37,789 by 2044. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUS 206
CrossesBranch of Dukes Brook
Location0.28M N. of Dukes Pky W.
RouteU.S. Route 206
CountySomerset County
StateNew Jersey
Coordinates40.55175, -74.61469
Functional classUrban Other Principal Arterial

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 inspectionAugust 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 rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length34 ft (10.4 m)
Longest span15 ft (4.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,490 (2024)
Projected traffic37,789 by 2044
Trucks4%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 206 over Branch of Dukes Brook built?

It was built in 2003, making it 22 years old in 2025.

What condition is US 206 over Branch of 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 August 2024.

How much traffic does US 206 over Branch of Dukes Brook carry?

About 31,490 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is US 206 over Branch of Dukes Brook?

The structure is 34 ft (10.4 m) long with a longest span of 15 ft (4.6 m).

Who owns US 206 over Branch of Dukes Brook?

It is owned by the State Highway Agency.