US Bridges

Nj 15 NB over Rockaway River

Fair

Morris County, New Jersey · 2.15 Mi. No. of RT.80 · Structure no. 1404157

Built
1964
61 years old
Condition
Fair
inspected February 2024
Type
Slab
Prestressed Concrete
Length
115 ft
4 main spans
Daily traffic
27,976
2024 count
Owner
State
State Highway Agency

About this bridge

Nj 15 NB over Rockaway River is a prestressed concrete slab carrying Nj 15 NB over Rockaway River in Morris County, New Jersey. It was built in 1964, so it is 61 years old, older 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 5 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 27,976 vehicles a day, roughly 4% of them trucks, projected to reach 40,285 by 2044. The structure is 115 ft (35.1 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNj 15 NB
CrossesRockaway River
Location2.15 Mi. No. of RT.80
RouteState Highway 15
CountyMorris County
StateNew Jersey
Coordinates40.93454, -74.59026
Functional classUrban Other Principal 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating53 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length115 ft (35.1 m)
Longest span32 ft (9.8 m)
Deck width49 ft (14.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,976 (2024)
Projected traffic40,285 by 2044
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nj 15 NB over Rockaway River built?

It was built in 1964, making it 61 years old in 2025.

What condition is Nj 15 NB over Rockaway River 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 February 2024.

How much traffic does Nj 15 NB over Rockaway River carry?

About 27,976 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Nj 15 NB over Rockaway River?

The structure is 115 ft (35.1 m) long with a longest span of 32 ft (9.8 m) and a deck 49 ft wide.

Who owns Nj 15 NB over Rockaway River?

It is owned by the State Highway Agency.