US Bridges

RTE 987D over Saw Mill River

Good

Westchester County, New York · 0.1 MI N JCT Rts SMRP<I87 · Structure no. 000000005500719

Built
2019
6 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
192 ft
3 main spans
Daily traffic
29,010
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 987D over Saw Mill River is a steel continuous stringer/multi-beam or girder carrying RTE 987D over Saw Mill River in Westchester County, New York. It was built in 2019, so it is 6 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 29,010 vehicles a day, roughly 1% of them trucks, projected to reach 40,924 by 2041. The structure is 192 ft (58.5 m) long and 70 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRTE 987D
CrossesSaw Mill River
Location0.1 MI N JCT Rts SMRP<I87
Coordinates41.04405, -73.835
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating88 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length192 ft (58.5 m)
Longest span75 ft (22.9 m)
Deck width70 ft (21.4 m)
Roadway width65 ft (19.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,010 (2021)
Projected traffic40,924 by 2041
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$10.6 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 987D over Saw Mill River built?

It was built in 2019, making it 6 years old in 2025.

What condition is RTE 987D over Saw Mill River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

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

About 29,010 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is RTE 987D over Saw Mill River?

The structure is 192 ft (58.5 m) long with a longest span of 75 ft (22.9 m) and a deck 70 ft wide.

Who owns RTE 987D over Saw Mill River?

It is owned by the State Highway Agency.