US Bridges

Njtpk Ramp Sit over Rocky Brook

Good

Mercer County, New Jersey · Int. 8 · Structure no. M06747H

Built
2013
12 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
93 ft
1 main span
Daily traffic
3,194
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Njtpk Ramp Sit over Rocky Brook is a steel stringer/multi-beam or girder carrying Njtpk Ramp Sit over Rocky Brook in Mercer County, New Jersey. It was built in 2013, so it is 12 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,194 vehicles a day, roughly 1% of them trucks, projected to reach 6,287 by 2043. The structure is 93 ft (28.3 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesNjtpk Ramp Sit
CrossesRocky Brook
LocationInt. 8
RouteInterstate 95
CountyMercer County
StateNew Jersey
Coordinates40.25993, -74.51251
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.4 US tons
Inventory rating70.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length93 ft (28.3 m)
Longest span91 ft (27.7 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,194 (2023)
Projected traffic6,287 by 2043
Trucks1%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 Njtpk Ramp Sit over Rocky Brook built?

It was built in 2013, making it 12 years old in 2025.

What condition is Njtpk Ramp Sit 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 2023.

How much traffic does Njtpk Ramp Sit over Rocky Brook carry?

About 3,194 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Njtpk Ramp Sit over Rocky Brook?

The structure is 93 ft (28.3 m) long with a longest span of 91 ft (27.7 m) and a deck 32 ft wide.

Who owns Njtpk Ramp Sit over Rocky Brook?

It is owned by the State Toll Authority.