US Bridges

North Main Street over Rockaway River

Fair

Morris County, New Jersey · 0.02 Mile S of CR 618 · Structure no. 1400174

Built
1948
77 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
90 ft
2 main spans
Daily traffic
1,408
2023 count
Owner
County
County Highway Agency

About this bridge

North Main Street over Rockaway River is a steel stringer/multi-beam or girder carrying North Main Street over Rockaway River in Morris County, New Jersey. It was built in 1948, so it is 77 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 1,408 vehicles a day, roughly 4% of them trucks, projected to reach 1,718 by 2043. The structure is 90 ft (27.4 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNorth Main Street
CrossesRockaway River
Location0.02 Mile S of CR 618
RouteCity Street 0
Coordinates40.91532, -74.42759
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length90 ft (27.4 m)
Longest span42 ft (12.8 m)
Deck width42 ft (12.9 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,408 (2023)
Projected traffic1,718 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was North Main Street over Rockaway River built?

It was built in 1948, making it 77 years old in 2025.

What condition is North Main Street 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 North Main Street over Rockaway River carry?

About 1,408 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is North Main Street over Rockaway River?

The structure is 90 ft (27.4 m) long with a longest span of 42 ft (12.8 m) and a deck 42 ft wide.

Who owns North Main Street over Rockaway River?

It is owned by the County Highway Agency.