US Bridges

S Main ST (CR533) over Royce Brook

Good

Somerset County, New Jersey · 0.29 MI S of Camplain RD · Structure no. 18G0701

Built
2019
6 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
75 ft
2 main spans
Daily traffic
25,473
2023 count
Owner
County
County Highway Agency

About this bridge

S Main ST (CR533) over Royce Brook is a steel stringer/multi-beam or girder carrying S Main ST (CR533) over Royce Brook in Somerset County, New Jersey. It was built in 2019, so it is 6 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 9 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 75 ft (22.9 m) long and 65 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesS Main ST (CR533)
CrossesRoyce Brook
Location0.29 MI S of Camplain RD
RouteCounty Highway 533
CountySomerset County
StateNew Jersey
Coordinates40.53696, -74.5896
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106.8 US tons
Inventory rating97.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length75 ft (22.9 m)
Longest span35 ft (10.7 m)
Deck width65 ft (19.9 m)
Roadway width46 ft (14.1 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 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.9 million (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S Main ST (CR533) over Royce Brook built?

It was built in 2019, making it 6 years old in 2025.

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

How much traffic does S Main ST (CR533) over Royce Brook carry?

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

How long is S Main ST (CR533) over Royce Brook?

The structure is 75 ft (22.9 m) long with a longest span of 35 ft (10.7 m) and a deck 65 ft wide.

Who owns S Main ST (CR533) over Royce Brook?

It is owned by the County Highway Agency.