US Bridges

RTE 100 over Ex-Nycrr (putnam)

Fair

Westchester County, New York · 1.7 MI S JCT SH100 &US202 · Structure no. 000000001036170

Built
1951
74 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete Continuous
Length
156 ft
3 main spans
Daily traffic
7,608
2017 count
Owner
State
State Highway Agency

About this bridge

RTE 100 over Ex-Nycrr (putnam) is a concrete continuous tee beam carrying RTE 100 over Ex-Nycrr (putnam) in Westchester County, New York. It was built in 1951, so it is 74 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 7,608 vehicles a day, roughly 7% of them trucks, projected to reach 9,242 by 2041. The structure is 156 ft (47.5 m) long and 56 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRTE 100
CrossesEx-Nycrr (putnam)
Location1.7 MI S JCT SH100 &US202
RouteState Highway 100
CountyWestchester County
StateNew York
Coordinates41.3057, -73.69707
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating24.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length156 ft (47.5 m)
Longest span60 ft (18.2 m)
Deck width56 ft (17.1 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,608 (2017)
Projected traffic9,242 by 2041
Trucks7%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed5 mi (8 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$6.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 100 over Ex-Nycrr (putnam) built?

It was built in 1951, making it 74 years old in 2025.

What condition is RTE 100 over Ex-Nycrr (putnam) 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 August 2024.

How much traffic does RTE 100 over Ex-Nycrr (putnam) carry?

About 7,608 vehicles per day (2017 count), of which roughly 7% are trucks.

How long is RTE 100 over Ex-Nycrr (putnam)?

The structure is 156 ft (47.5 m) long with a longest span of 60 ft (18.2 m) and a deck 56 ft wide.

Who owns RTE 100 over Ex-Nycrr (putnam)?

It is owned by the State Highway Agency.