US Bridges

New Brunswick Road over Tributary Raritan River

Good

Somerset County, New Jersey · 0.66 Miles East of CR 621 · Structure no. 18H0601

Built
2005
20 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
28 ft
1 main span
Daily traffic
6,242
2023 count
Owner
County
County Highway Agency

About this bridge

New Brunswick Road over Tributary Raritan River is a concrete culvert carrying New Brunswick Road over Tributary Raritan River in Somerset County, New Jersey. It was built in 2005, so it is 20 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 6,242 vehicles a day, roughly 3% of them trucks, projected to reach 7,490 by 2043. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNew Brunswick Road
CrossesTributary Raritan River
Location0.66 Miles East of CR 621
RouteCity Street 0
Coordinates40.525, -74.53015
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
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
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,242 (2023)
Projected traffic7,490 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 New Brunswick Road over Tributary Raritan River built?

It was built in 2005, making it 20 years old in 2025.

What condition is New Brunswick Road over Tributary Raritan 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 New Brunswick Road over Tributary Raritan River carry?

About 6,242 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is New Brunswick Road over Tributary Raritan River?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m).

Who owns New Brunswick Road over Tributary Raritan River?

It is owned by the County Highway Agency.