US Bridges

Myrtle Avenue over Rockaway River

Fair

Morris County, New Jersey · 2.4 MI No of JCT 46 · Structure no. 1420162

Built
1962
63 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
90 ft
1 main span
Daily traffic
3,495
2024 count
Owner
State
State Highway Agency

About this bridge

Myrtle Avenue over Rockaway River is a steel stringer/multi-beam or girder carrying Myrtle Avenue over Rockaway River in Morris County, New Jersey. It was built in 1962, so it is 63 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 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 3,495 vehicles a day, roughly 1% of them trucks, projected to reach 4,260 by 2044. The structure is 90 ft (27.4 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMyrtle Avenue
CrossesRockaway River
Location2.4 MI No of JCT 46
RouteCity Street 0
CountyMorris County
StateNew Jersey
Coordinates40.90237, -74.4096
Functional classUrban Local

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 protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating70 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span84 ft (25.6 m)
Deck width39 ft (12 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,495 (2024)
Projected traffic4,260 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Myrtle Avenue over Rockaway River built?

It was built in 1962, making it 63 years old in 2025.

What condition is Myrtle Avenue 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 March 2024.

How much traffic does Myrtle Avenue over Rockaway River carry?

About 3,495 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Myrtle Avenue over Rockaway River?

The structure is 90 ft (27.4 m) long with a longest span of 84 ft (25.6 m) and a deck 39 ft wide.

Who owns Myrtle Avenue over Rockaway River?

It is owned by the State Highway Agency.