US Bridges

RTE 133 over Kisco River

Fair

Westchester County, New York · 0.3 MI W JCT Rts 117+5MRP · Structure no. 000000001037740

Built
1931
94 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete
Length
39 ft
1 main span
Daily traffic
7,338
2016 count
Owner
State
State Highway Agency

About this bridge

RTE 133 over Kisco River is a concrete tee beam carrying RTE 133 over Kisco River in Westchester County, New York. It was built in 1931, so it is 94 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 7,338 vehicles a day, roughly 4% of them trucks, projected to reach 8,914 by 2041. The structure is 39 ft (11.9 m) long and 46 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesRTE 133
CrossesKisco River
Location0.3 MI W JCT Rts 117+5MRP
RouteState Highway 133
CountyWestchester County
StateNew York
Coordinates41.20829, -73.74086
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionOctober 2024
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 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 alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating43 US tons
Inventory rating26 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length39 ft (11.9 m)
Longest span38 ft (11.6 m)
Deck width46 ft (14.1 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,338 (2016)
Projected traffic8,914 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$1.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 133 over Kisco River built?

It was built in 1931, making it 94 years old in 2025.

What condition is RTE 133 over Kisco 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 October 2024.

How much traffic does RTE 133 over Kisco River carry?

About 7,338 vehicles per day (2016 count), of which roughly 4% are trucks.

How long is RTE 133 over Kisco River?

The structure is 39 ft (11.9 m) long with a longest span of 38 ft (11.6 m) and a deck 46 ft wide.

Who owns RTE 133 over Kisco River?

It is owned by the State Highway Agency.