US Bridges

Locust Avenue over Blind Brook

Poor

Westchester County, New York · 2.9 MI NE Mamaroneck Rye · Structure no. 000000002225260

Built
1928
97 years old
Condition
Poor
inspected March 2023
Type
Tee Beam
Concrete
Length
33 ft
1 main span
Daily traffic
2,378
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Locust Avenue over Blind Brook is a concrete tee beam carrying Locust Avenue over Blind Brook in Westchester County, New York. It was built in 1928, so it is 97 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2,378 vehicles a day, roughly 1% of them trucks, projected to reach 3,329 by 2041. The structure is 33 ft (10.1 m) long and 49 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesLocust Avenue
CrossesBlind Brook
Location2.9 MI NE Mamaroneck Rye
RouteCity Street 0
Coordinates40.9825, -73.68537
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, 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
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span29 ft (8.8 m)
Deck width49 ft (14.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,378 (2021)
Projected traffic3,329 by 2041
Trucks1%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Locust Avenue over Blind Brook built?

It was built in 1928, making it 97 years old in 2025.

What condition is Locust Avenue over Blind Brook in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.

How much traffic does Locust Avenue over Blind Brook carry?

About 2,378 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Locust Avenue over Blind Brook?

The structure is 33 ft (10.1 m) long with a longest span of 29 ft (8.8 m) and a deck 49 ft wide.

Who owns Locust Avenue over Blind Brook?

It is owned by the City or Municipal Highway Agency.