US Bridges

RTE 987 over Saw Mill River

Good

Westchester County, New York · 1.3 MI J Smrp + Tsp · Structure no. 000000005500839

Built
2022
3 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
115 ft
1 main span
Daily traffic
48,167
2007 count
Owner
State
State Highway Agency

About this bridge

RTE 987 over Saw Mill River is a steel stringer/multi-beam or girder carrying RTE 987 over Saw Mill River in Westchester County, New York. It was built in 2022, so it is 3 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 48,167 vehicles a day, roughly 1% of them trucks, projected to reach 67,949 by 2041. The structure is 115 ft (35 m) long and 67 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesRTE 987
CrossesSaw Mill River
Location1.3 MI J Smrp + Tsp
Coordinates41.12282, -73.78328
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable 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 rating95 US tons
Inventory rating57 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length115 ft (35 m)
Longest span113 ft (34.4 m)
Deck width67 ft (20.5 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic48,167 (2007)
Projected traffic67,949 by 2041
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$6.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 987 over Saw Mill River built?

It was built in 2022, making it 3 years old in 2025.

What condition is RTE 987 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 October 2024.

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

About 48,167 vehicles per day (2007 count), of which roughly 1% are trucks.

How long is RTE 987 over Saw Mill River?

The structure is 115 ft (35 m) long with a longest span of 113 ft (34.4 m) and a deck 67 ft wide.

Who owns RTE 987 over Saw Mill River?

It is owned by the State Highway Agency.