US Bridges

RTE I90 over Stony Kill

Fair

Columbia County, New York · 0.4 MI W of East Chatham · Structure no. 000000005515282

Built
1958
67 years old, rebuilt 2003
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
93 ft
1 main span
Daily traffic
9,080
2020 count
Owner
Toll Authority
State Toll Authority

About this bridge

RTE I90 over Stony Kill is a steel stringer/multi-beam or girder carrying RTE I90 over Stony Kill in Columbia County, New York. It was built in 1958 and reconstructed in 2003, so it is 67 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 9,080 vehicles a day, roughly 41% of them trucks, projected to reach 15,917 by 2041. The structure is 93 ft (28.3 m) long and 45 ft wide.

Location

Open in Google Maps
CarriesRTE I90
CrossesStony Kill
Location0.4 MI W of East Chatham
RouteInterstate 90
CountyColumbia County
StateNew York
Coordinates42.41036, -73.53486
Functional classRural Principal Arterial - Interstate

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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length93 ft (28.3 m)
Longest span87 ft (26.5 m)
Deck width45 ft (13.7 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,080 (2020)
Projected traffic15,917 by 2041
Trucks41%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn an Interstate toll segment under Secretarial agreement
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$6.1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE I90 over Stony Kill built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2003.

What condition is RTE I90 over Stony Kill 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 I90 over Stony Kill carry?

About 9,080 vehicles per day (2020 count), of which roughly 41% are trucks.

How long is RTE I90 over Stony Kill?

The structure is 93 ft (28.3 m) long with a longest span of 87 ft (26.5 m) and a deck 45 ft wide.

Who owns RTE I90 over Stony Kill?

It is owned by the State Toll Authority.