US Bridges

County Route 512 over North Br Raritan River

Fair

Somerset County, New Jersey · 0.77 MI W of US 202 · Structure no. 18E1206

Built
2006
19 years old
Condition
Fair
inspected August 2023
Type
Truss - Thru
Steel
Length
58 ft
1 main span
Daily traffic
6,621
2023 count
Owner
County
County Highway Agency

About this bridge

County Route 512 over North Br Raritan River is a steel truss - thru carrying County Route 512 over North Br Raritan River in Somerset County, New Jersey. It was built in 2006, so it is 19 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 5 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 6,621 vehicles a day, roughly 3% of them trucks, projected to reach 7,945 by 2043. The structure is 58 ft (17.7 m) long and 39 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCounty Route 512
CrossesNorth Br Raritan River
Location0.77 MI W of US 202
RouteCounty Highway 512
CountySomerset County
StateNew Jersey
Coordinates40.69133, -74.64717
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length58 ft (17.7 m)
Longest span54 ft (16.5 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,621 (2023)
Projected traffic7,945 by 2043
Trucks3%
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 County Route 512 over North Br Raritan River built?

It was built in 2006, making it 19 years old in 2025.

What condition is County Route 512 over North Br Raritan River 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 2023.

How much traffic does County Route 512 over North Br Raritan River carry?

About 6,621 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is County Route 512 over North Br Raritan River?

The structure is 58 ft (17.7 m) long with a longest span of 54 ft (16.5 m) and a deck 39 ft wide.

Who owns County Route 512 over North Br Raritan River?

It is owned by the County Highway Agency.