US Bridges

RTE 9 over RTE 129

Fair

Westchester County, New York · JCT Rts 9+129 · Structure no. 000000001004991

Built
1963
62 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
134 ft
3 main spans
Daily traffic
19,747
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 9 over RTE 129 is a steel stringer/multi-beam or girder carrying RTE 9 over RTE 129 in Westchester County, New York. It was built in 1963, so it is 62 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 19,747 vehicles a day, roughly 7% of them trucks, projected to reach 27,857 by 2041. The structure is 134 ft (40.8 m) long and 35 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRTE 9
CrossesRTE 129
LocationJCT Rts 9+129
RouteU.S. Route 9
CountyWestchester County
StateNew York
Coordinates41.20148, -73.88796
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83 US tons
Inventory rating49.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length134 ft (40.8 m)
Longest span60 ft (18.2 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,747 (2020)
Projected traffic27,857 by 2041
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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$3.4 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 9 over RTE 129 built?

It was built in 1963, making it 62 years old in 2025.

What condition is RTE 9 over RTE 129 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 July 2024.

How much traffic does RTE 9 over RTE 129 carry?

About 19,747 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is RTE 9 over RTE 129?

The structure is 134 ft (40.8 m) long with a longest span of 60 ft (18.2 m) and a deck 35 ft wide.

Who owns RTE 9 over RTE 129?

It is owned by the State Highway Agency.