US Bridges

Ferguson Road over Trib. to Dock Watch Holl

Good

Somerset County, New Jersey · 0.3 MI No. Dock Watch Rd. · Structure no. 18H0911

Built
1997
28 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
36 ft
1 main span
Daily traffic
608
2023 count
Owner
County
County Highway Agency

About this bridge

Ferguson Road over Trib. to Dock Watch Holl is a wood or timber stringer/multi-beam or girder carrying Ferguson Road over Trib. to Dock Watch Holl in Somerset County, New Jersey. It was built in 1997, so it is 28 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 608 vehicles a day, roughly 1% of them trucks, projected to reach 742 by 2043. The structure is 36 ft (11 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFerguson Road
CrossesTrib. to Dock Watch Holl
Location0.3 MI No. Dock Watch Rd.
RouteCity Street 0
CountySomerset County
StateNew Jersey
Coordinates40.61271, -74.53675
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.
Superstructure8 Very GoodNo problems noted.
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 adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating110.1 US tons
Inventory rating73 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20 + Mod
Structure length36 ft (11 m)
Longest span32 ft (9.8 m)
Deck width29 ft (8.9 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic608 (2023)
Projected traffic742 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Ferguson Road over Trib. to Dock Watch Holl built?

It was built in 1997, making it 28 years old in 2025.

What condition is Ferguson Road over Trib. to Dock Watch Holl 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 Ferguson Road over Trib. to Dock Watch Holl carry?

About 608 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Ferguson Road over Trib. to Dock Watch Holl?

The structure is 36 ft (11 m) long with a longest span of 32 ft (9.8 m) and a deck 29 ft wide.

Who owns Ferguson Road over Trib. to Dock Watch Holl?

It is owned by the County Highway Agency.