US Bridges

Westchester Ave. over Stamford Mill River

Fair

Westchester County, New York · .8 MI SE JCT CR 137 + 124 · Structure no. 000000002270400

Built
1930
95 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete
Length
45 ft
2 main spans
Daily traffic
3,441
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Westchester Ave. over Stamford Mill River is a concrete slab carrying Westchester Ave. over Stamford Mill River in Westchester County, New York. It was built in 1930, so it is 95 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 5 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 3,441 vehicles a day, roughly 5% of them trucks, projected to reach 4,180 by 2041. The structure is 45 ft (13.7 m) long and 29 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesWestchester Ave.
CrossesStamford Mill River
Location.8 MI SE JCT CR 137 + 124
Coordinates41.19277, -73.56124
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.4 US tons
Inventory rating32.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span21 ft (6.4 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,441 (2021)
Projected traffic4,180 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$893,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Westchester Ave. over Stamford Mill River built?

It was built in 1930, making it 95 years old in 2025.

What condition is Westchester Ave. over Stamford 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 Westchester Ave. over Stamford Mill River carry?

About 3,441 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Westchester Ave. over Stamford Mill River?

The structure is 45 ft (13.7 m) long with a longest span of 21 ft (6.4 m) and a deck 29 ft wide.

Who owns Westchester Ave. over Stamford Mill River?

It is owned by the Town or Township Highway Agency.