US Bridges

West End Ave over Stony Brook

Good

Somerset County, New Jersey · 0.4 MI S of US 22 · Structure no. 18M0907

Built
1976
49 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
63 ft
1 main span
Daily traffic
10,248
2023 count
Owner
County
County Highway Agency

About this bridge

West End Ave over Stony Brook is a prestressed concrete box beam or girders - multiple carrying West End Ave over Stony Brook in Somerset County, New Jersey. It was built in 1976, so it is 49 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 10,248 vehicles a day, roughly 3% of them trucks, projected to reach 12,504 by 2043. The structure is 63 ft (19.2 m) long and 62 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesWest End Ave
CrossesStony Brook
Location0.4 MI S of US 22
RouteCounty Highway 649
CountySomerset County
StateNew Jersey
Coordinates40.61412, -74.44601
Functional classUrban Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length63 ft (19.2 m)
Longest span60 ft (18.3 m)
Deck width62 ft (18.9 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,248 (2023)
Projected traffic12,504 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$645,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was West End Ave over Stony Brook built?

It was built in 1976, making it 49 years old in 2025.

What condition is West End Ave over Stony 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 October 2023.

How much traffic does West End Ave over Stony Brook carry?

About 10,248 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is West End Ave over Stony Brook?

The structure is 63 ft (19.2 m) long with a longest span of 60 ft (18.3 m) and a deck 62 ft wide.

Who owns West End Ave over Stony Brook?

It is owned by the County Highway Agency.