US Bridges

Fourth Street over Ramapo River

Fair

Rockland County, New York · 0.5 MI S SB I-87 Int 15A · Structure no. 000000003346140

Built
1966
59 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
99 ft
1 main span
Daily traffic
1,846
2019 count
Owner
County
County Highway Agency

About this bridge

Fourth Street over Ramapo River is a steel stringer/multi-beam or girder carrying Fourth Street over Ramapo River in Rockland County, New York. It was built in 1966, so it is 59 years old, older than the New York average of 53 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 1,846 vehicles a day, roughly 4% of them trucks, projected to reach 2,284 by 2041. The structure is 99 ft (30.2 m) long and 38 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFourth Street
CrossesRamapo River
Location0.5 MI S SB I-87 Int 15A
Coordinates41.12493, -74.16466
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
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 inspectionAugust 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length99 ft (30.2 m)
Longest span95 ft (28.9 m)
Deck width38 ft (11.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,846 (2019)
Projected traffic2,284 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$2.8 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Fourth Street over Ramapo River built?

It was built in 1966, making it 59 years old in 2025.

What condition is Fourth Street over Ramapo 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 August 2023.

How much traffic does Fourth Street over Ramapo River carry?

About 1,846 vehicles per day (2019 count), of which roughly 4% are trucks.

How long is Fourth Street over Ramapo River?

The structure is 99 ft (30.2 m) long with a longest span of 95 ft (28.9 m) and a deck 38 ft wide.

Who owns Fourth Street over Ramapo River?

It is owned by the County Highway Agency.