US Bridges

Nj 133 WB over Rocky Brook

Good

Mercer County, New Jersey · 0.47 MI West of Route 130 · Structure no. 1143169

Built
1998
27 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
224 ft
2 main spans
Daily traffic
22,746
2024 count
Owner
State
State Highway Agency

About this bridge

Nj 133 WB over Rocky Brook is a prestressed concrete stringer/multi-beam or girder carrying Nj 133 WB over Rocky Brook in Mercer County, New Jersey. It was built in 1998, so it is 27 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 22,746 vehicles a day, roughly 4% of them trucks, projected to reach 28,356 by 2044. The structure is 224 ft (68.3 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNj 133 WB
CrossesRocky Brook
Location0.47 MI West of Route 130
RouteState Highway 133
Coordinates40.283, -74.53723
Functional classUrban Other Principal 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 protection9 ExcellentNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93 US tons
Inventory rating43 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length224 ft (68.3 m)
Longest span110 ft (33.5 m)
Deck width42 ft (12.7 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,746 (2024)
Projected traffic28,356 by 2044
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nj 133 WB over Rocky Brook built?

It was built in 1998, making it 27 years old in 2025.

What condition is Nj 133 WB over Rocky 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 June 2024.

How much traffic does Nj 133 WB over Rocky Brook carry?

About 22,746 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Nj 133 WB over Rocky Brook?

The structure is 224 ft (68.3 m) long with a longest span of 110 ft (33.5 m) and a deck 42 ft wide.

Who owns Nj 133 WB over Rocky Brook?

It is owned by the State Highway Agency.