US Bridges

Rockaway Valley RD over Stony Brook

Fair

Morris County, New Jersey · 0.47 MI West of CR 618 · Structure no. 1400348

Built
1986
39 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
3,211
2023 count
Owner
County
County Highway Agency

About this bridge

Rockaway Valley RD over Stony Brook is a prestressed concrete box beam or girders - multiple carrying Rockaway Valley RD over Stony Brook in Morris County, New Jersey. It was built in 1986, so it is 39 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,211 vehicles a day, roughly 4% of them trucks, projected to reach 3,918 by 2043. The structure is 56 ft (17.1 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesRockaway Valley RD
CrossesStony Brook
Location0.47 MI West of CR 618
RouteCity Street 0
CountyMorris County
StateNew Jersey
Coordinates40.94053, -74.42704
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length56 ft (17.1 m)
Longest span52 ft (15.8 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,211 (2023)
Projected traffic3,918 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rockaway Valley RD over Stony Brook built?

It was built in 1986, making it 39 years old in 2025.

What condition is Rockaway Valley RD over Stony Brook in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does Rockaway Valley RD over Stony Brook carry?

About 3,211 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Rockaway Valley RD over Stony Brook?

The structure is 56 ft (17.1 m) long with a longest span of 52 ft (15.8 m) and a deck 32 ft wide.

Who owns Rockaway Valley RD over Stony Brook?

It is owned by the County Highway Agency.