US Bridges

Dock Wtch Hllw RD over Dock Watch Hollow Brook

Good

Somerset County, New Jersey · 0.6 MI So Mt. Horeb RD · Structure no. 18H0913

Built
2000
25 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
45 ft
1 main span
Daily traffic
1,764
2023 count
Owner
County
County Highway Agency

About this bridge

Dock Wtch Hllw RD over Dock Watch Hollow Brook is a wood or timber stringer/multi-beam or girder carrying Dock Wtch Hllw RD over Dock Watch Hollow Brook in Somerset County, New Jersey. It was built in 2000, so it is 25 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,764 vehicles a day, roughly 1% of them trucks, projected to reach 2,152 by 2043. The structure is 45 ft (13.7 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesDock Wtch Hllw RD
CrossesDock Watch Hollow Brook
Location0.6 MI So Mt. Horeb RD
RouteCity Street 0
Coordinates40.61152, -74.54022
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating92 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20 + Mod
Structure length45 ft (13.7 m)
Longest span41 ft (12.5 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,764 (2023)
Projected traffic2,152 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Dock Wtch Hllw RD over Dock Watch Hollow Brook built?

It was built in 2000, making it 25 years old in 2025.

What condition is Dock Wtch Hllw RD over Dock Watch Hollow Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does Dock Wtch Hllw RD over Dock Watch Hollow Brook carry?

About 1,764 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Dock Wtch Hllw RD over Dock Watch Hollow Brook?

The structure is 45 ft (13.7 m) long with a longest span of 41 ft (12.5 m) and a deck 32 ft wide.

Who owns Dock Wtch Hllw RD over Dock Watch Hollow Brook?

It is owned by the County Highway Agency.