US Bridges

Warren Street over Rockaway River

Fair

Morris County, New Jersey · .1 Mile West of Morris ST · Structure no. 1401022

Built
1954
71 years old, rebuilt 1994
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
43 ft
1 main span
Daily traffic
14,953
2023 count
Owner
County
County Highway Agency

About this bridge

Warren Street over Rockaway River is a steel stringer/multi-beam or girder carrying Warren Street over Rockaway River in Morris County, New Jersey. It was built in 1954 and reconstructed in 1994, so it is 71 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 14,953 vehicles a day, roughly 1% of them trucks, projected to reach 18,245 by 2043. The structure is 43 ft (13.1 m) long and 234 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWarren Street
CrossesRockaway River
Location.1 Mile West of Morris ST
RouteCity Street 0
Coordinates40.88544, -74.55947
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length43 ft (13.1 m)
Longest span42 ft (12.8 m)
Deck width234 ft (71.3 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,953 (2023)
Projected traffic18,245 by 2043
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$842,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Warren Street over Rockaway River built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1994.

What condition is Warren 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 June 2023.

How much traffic does Warren Street over Rockaway River carry?

About 14,953 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Warren Street over Rockaway River?

The structure is 43 ft (13.1 m) long with a longest span of 42 ft (12.8 m) and a deck 234 ft wide.

Who owns Warren Street over Rockaway River?

It is owned by the County Highway Agency.