US Bridges

Somerville Road over Dead River

Good

Somerset County, New Jersey · 0.71 MI So.Of CR 512 · Structure no. 18G1107

Built
2000
25 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
73 ft
1 main span
Daily traffic
5,408
2023 count
Owner
County
County Highway Agency

About this bridge

Somerville Road over Dead River is a steel stringer/multi-beam or girder carrying Somerville Road over Dead River 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 5,408 vehicles a day, roughly 3% of them trucks, projected to reach 6,490 by 2043. The structure is 73 ft (22.3 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSomerville Road
CrossesDead River
Location0.71 MI So.Of CR 512
RouteCity Street 0
Coordinates40.65618, -74.59253
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating70 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length73 ft (22.3 m)
Longest span68 ft (20.7 m)
Deck width43 ft (13 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,408 (2023)
Projected traffic6,490 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 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 Somerville Road over Dead River built?

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

What condition is Somerville Road over Dead River 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 September 2023.

How much traffic does Somerville Road over Dead River carry?

About 5,408 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Somerville Road over Dead River?

The structure is 73 ft (22.3 m) long with a longest span of 68 ft (20.7 m) and a deck 43 ft wide.

Who owns Somerville Road over Dead River?

It is owned by the County Highway Agency.