US Bridges

RTE 987A over Tiorati Brook

Fair

Rockland County, New York · 4.6 MI NW of W.Haverstraw · Structure no. 000000005521482

Built
1970
55 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
80 ft
1 main span
Daily traffic
49
2015 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

RTE 987A over Tiorati Brook is a steel stringer/multi-beam or girder carrying RTE 987A over Tiorati Brook in Rockland County, New York. It was built in 1970, so it is 55 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 49 vehicles a day, roughly 4% of them trucks, projected to reach 59 by 2041. The structure is 80 ft (24.4 m) long and 33 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesRTE 987A
CrossesTiorati Brook
Location4.6 MI NW of W.Haverstraw
CountyRockland County
StateNew York
Coordinates41.25036, -74.0484
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 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 geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95 US tons
Inventory rating57 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length80 ft (24.4 m)
Longest span75 ft (22.8 m)
Deck width33 ft (10.1 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49 (2015)
Projected traffic59 by 2041
Trucks4%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$3.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 987A over Tiorati Brook built?

It was built in 1970, making it 55 years old in 2025.

What condition is RTE 987A over Tiorati Brook 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 October 2023.

How much traffic does RTE 987A over Tiorati Brook carry?

About 49 vehicles per day (2015 count), of which roughly 4% are trucks.

How long is RTE 987A over Tiorati Brook?

The structure is 80 ft (24.4 m) long with a longest span of 75 ft (22.8 m) and a deck 33 ft wide.

Who owns RTE 987A over Tiorati Brook?

It is owned by the State Park, Forest, or Reservation Agency.