US Bridges

Ward Avenue over Mamaroneck River

Fair

Westchester County, New York · At Mamaroneck · Structure no. 000000002225110

Built
1937
88 years old
Condition
Fair
inspected March 2023
Type
Arch - Deck
Concrete
Length
34 ft
1 main span
Daily traffic
356
2018 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Ward Avenue over Mamaroneck River is a concrete arch - deck carrying Ward Avenue over Mamaroneck River in Westchester County, New York. It was built in 1937, so it is 88 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 356 vehicles a day, roughly 2% of them trucks, projected to reach 498 by 2038. The structure is 34 ft (10.4 m) long and 53 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesWard Avenue
CrossesMamaroneck River
LocationAt Mamaroneck
Coordinates40.95235, -73.7345
Functional classUrban Local

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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than 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 rating71.9 US tons
Inventory rating27.9 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span31 ft (9.4 m)
Deck width53 ft (16.3 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic356 (2018)
Projected traffic498 by 2038
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$2.1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ward Avenue over Mamaroneck River built?

It was built in 1937, making it 88 years old in 2025.

What condition is Ward Avenue over Mamaroneck 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 March 2023.

How much traffic does Ward Avenue over Mamaroneck River carry?

About 356 vehicles per day (2018 count), of which roughly 2% are trucks.

How long is Ward Avenue over Mamaroneck River?

The structure is 34 ft (10.4 m) long with a longest span of 31 ft (9.4 m) and a deck 53 ft wide.

Who owns Ward Avenue over Mamaroneck River?

It is owned by the Town or Township Highway Agency.