US Bridges

Greenbank Road over Rockaway River

Fair

Morris County, New Jersey · 0.7MI SE of I-287 Exit 45 · Structure no. 1400268

Built
1984
41 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
96 ft
1 main span
Daily traffic
4,308
2023 count
Owner
County
County Highway Agency

About this bridge

Greenbank Road over Rockaway River is a steel stringer/multi-beam or girder carrying Greenbank Road over Rockaway River in Morris County, New Jersey. It was built in 1984, so it is 41 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 4,308 vehicles a day, roughly 3% of them trucks, projected to reach 5,256 by 2043. The structure is 96 ft (29.3 m) long and 45 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesGreenbank Road
CrossesRockaway River
Location0.7MI SE of I-287 Exit 45
RouteCity Street 0
CountyMorris County
StateNew Jersey
Coordinates40.89934, -74.38777
Functional classUrban Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating96 US tons
Inventory rating57 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length96 ft (29.3 m)
Longest span91 ft (27.7 m)
Deck width45 ft (13.8 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,308 (2023)
Projected traffic5,256 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Greenbank Road over Rockaway River built?

It was built in 1984, making it 41 years old in 2025.

What condition is Greenbank Road 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 July 2023.

How much traffic does Greenbank Road over Rockaway River carry?

About 4,308 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Greenbank Road over Rockaway River?

The structure is 96 ft (29.3 m) long with a longest span of 91 ft (27.7 m) and a deck 45 ft wide.

Who owns Greenbank Road over Rockaway River?

It is owned by the County Highway Agency.