US Bridges

RTE 100 over Pocantico River

Fair

Westchester County, New York · .2 MI N JCT RTE 100+9A · Structure no. 000000001053350

Built
1967
58 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
340
2018 count
Owner
State
State Highway Agency

About this bridge

RTE 100 over Pocantico River is a concrete continuous culvert carrying RTE 100 over Pocantico River in Westchester County, New York. It was built in 1967, so it is 58 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 6 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 340 vehicles a day, roughly 15% of them trucks, projected to reach 341 by 2041. The structure is 29 ft (8.8 m) long and 51 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesRTE 100
CrossesPocantico River
Location.2 MI N JCT RTE 100+9A
RouteState Highway 100
Coordinates41.15196, -73.82581
Functional classUrban Other Principal 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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating44 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span12 ft (3.6 m)
Deck width51 ft (15.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2018)
Projected traffic341 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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$738,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 100 over Pocantico River built?

It was built in 1967, making it 58 years old in 2025.

What condition is RTE 100 over Pocantico 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 May 2024.

How much traffic does RTE 100 over Pocantico River carry?

About 340 vehicles per day (2018 count), of which roughly 15% are trucks.

How long is RTE 100 over Pocantico River?

The structure is 29 ft (8.8 m) long with a longest span of 12 ft (3.6 m) and a deck 51 ft wide.

Who owns RTE 100 over Pocantico River?

It is owned by the State Highway Agency.