US Bridges

RTE 987D over Saw Mill River

Fair

Westchester County, New York · 2.4 MI N JCT Rts Smrp&ccp · Structure no. 000000005500619

Built
1997
28 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
68 ft
1 main span
Daily traffic
61,032
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 987D over Saw Mill River is a prestressed concrete stringer/multi-beam or girder carrying RTE 987D over Saw Mill River in Westchester County, New York. It was built in 1997, so it is 28 years old, younger 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 61,032 vehicles a day, roughly 1% of them trucks, projected to reach 86,097 by 2041. The structure is 68 ft (20.7 m) long and 76 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesRTE 987D
CrossesSaw Mill River
Location2.4 MI N JCT Rts Smrp&ccp
CountyWestchester County
StateNew York
Coordinates40.965, -73.87096
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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 adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating46.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span62 ft (18.8 m)
Deck width76 ft (23.2 m)
Roadway width69 ft (21 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic61,032 (2020)
Projected traffic86,097 by 2041
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$3.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 987D over Saw Mill River built?

It was built in 1997, making it 28 years old in 2025.

What condition is RTE 987D over Saw Mill 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 March 2023.

How much traffic does RTE 987D over Saw Mill River carry?

About 61,032 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is RTE 987D over Saw Mill River?

The structure is 68 ft (20.7 m) long with a longest span of 62 ft (18.8 m) and a deck 76 ft wide.

Who owns RTE 987D over Saw Mill River?

It is owned by the State Highway Agency.