US Bridges

RTE 987D over Saw Mill River

Fair

Westchester County, New York · 2.1 MI N JCT Smrp & Ccp · Structure no. 000000005500600

Built
1960
65 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
352 ft
25 main spans
Daily traffic
61,032
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 987D over Saw Mill River is a concrete continuous slab carrying RTE 987D over Saw Mill River in Westchester County, New York. It was built in 1960, so it is 65 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 61,032 vehicles a day, roughly 1% of them trucks, projected to reach 86,097 by 2041. The structure is 352 ft (107.3 m) long and 14 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRTE 987D
CrossesSaw Mill River
Location2.1 MI N JCT Smrp & Ccp
RouteCity Street 987D
Coordinates40.96169, -73.87122
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.5 US tons
Inventory rating21.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans25
Design loadH 20
Structure length352 ft (107.3 m)
Longest span16 ft (4.8 m)
Deck width14 ft (4.3 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic61,032 (2020)
Projected traffic86,097 by 2041
Trucks1%
Lanes on structure1
Traffic directionOne-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 statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$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 1960, making it 65 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 September 2024.

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 352 ft (107.3 m) long with a longest span of 16 ft (4.8 m) and a deck 14 ft wide.

Who owns RTE 987D over Saw Mill River?

It is owned by the State Highway Agency.