US Bridges

RTE 987D over Saw Mill River

Fair

Westchester County, New York · 2.5 MI S JCT Rts SMRP&I87 · Structure no. 000000005500709

Built
1993
32 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
67 ft
1 main span
Daily traffic
43,153
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 987D over Saw Mill River is a prestressed concrete box beam or girders - multiple carrying RTE 987D over Saw Mill River in Westchester County, New York. It was built in 1993, so it is 32 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 43,153 vehicles a day, roughly 1% of them trucks, projected to reach 60,875 by 2041. The structure is 67 ft (20.4 m) long and 68 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRTE 987D
CrossesSaw Mill River
Location2.5 MI S JCT Rts SMRP&I87
Coordinates41.00958, -73.85261
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94 US tons
Inventory rating54 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length67 ft (20.4 m)
Longest span62 ft (18.8 m)
Deck width68 ft (20.6 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43,153 (2021)
Projected traffic60,875 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 statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$2.7 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 987D over Saw Mill River built?

It was built in 1993, making it 32 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 April 2023.

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

About 43,153 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is RTE 987D over Saw Mill River?

The structure is 67 ft (20.4 m) long with a longest span of 62 ft (18.8 m) and a deck 68 ft wide.

Who owns RTE 987D over Saw Mill River?

It is owned by the State Highway Agency.