US Bridges

N. Main ST (CR533) over Raritan River

Good

Somerset County, New Jersey · .42 MI N of Dukes Pkwy E · Structure no. 18G0702

Built
2007
18 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
560 ft
9 main spans
Daily traffic
25,473
2023 count
Owner
County
County Highway Agency

About this bridge

N. Main ST (CR533) over Raritan River is a steel continuous stringer/multi-beam or girder carrying N. Main ST (CR533) over Raritan River in Somerset County, New Jersey. It was built in 2007, so it is 18 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 25,473 vehicles a day, roughly 4% of them trucks, projected to reach 31,082 by 2043. The structure is 560 ft (170.7 m) long and 65 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesN. Main ST (CR533)
CrossesRaritan River
Location.42 MI N of Dukes Pkwy E
RouteCounty Highway 533
CountySomerset County
StateNew Jersey
Coordinates40.554, -74.58371
Functional classUrban Minor Arterial

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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating71 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadHS 25 or greater
Structure length560 ft (170.7 m)
Longest span81 ft (24.7 m)
Deck width65 ft (19.7 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,473 (2023)
Projected traffic31,082 by 2043
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 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 N. Main ST (CR533) over Raritan River built?

It was built in 2007, making it 18 years old in 2025.

What condition is N. Main ST (CR533) over 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 August 2023.

How much traffic does N. Main ST (CR533) over Raritan River carry?

About 25,473 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is N. Main ST (CR533) over Raritan River?

The structure is 560 ft (170.7 m) long with a longest span of 81 ft (24.7 m) and a deck 65 ft wide.

Who owns N. Main ST (CR533) over Raritan River?

It is owned by the County Highway Agency.