US Bridges

RTE 66 over Stony Kill

Fair

Columbia County, New York · 0.3 MI N JCT Rts 66 & 295 · Structure no. 000000001029030

Built
1886
139 years old, rebuilt 1998
Condition
Fair
inspected July 2024
Type
Arch - Deck
Masonry
Length
99 ft
1 main span
Daily traffic
1,824
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 66 over Stony Kill is a masonry arch - deck carrying RTE 66 over Stony Kill in Columbia County, New York. It was built in 1886 and reconstructed in 1998, so it is 139 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 1,824 vehicles a day, roughly 7% of them trucks, projected to reach 1,902 by 2041. The structure is 99 ft (30.2 m) long and 35 ft wide. If it were closed, the detour would be 41.6 mi (67 km).

Location

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CarriesRTE 66
CrossesStony Kill
Location0.3 MI N JCT Rts 66 & 295
RouteState Highway 66
CountyColumbia County
StateNew York
Coordinates42.36505, -73.59652
Functional classRural Major Collector

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.
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 inspectionJuly 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating90.8 US tons
Inventory rating32.4 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans1
Design loadHS 20
Structure length99 ft (30.2 m)
Longest span50 ft (15.2 m)
Deck width35 ft (10.6 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,824 (2020)
Projected traffic1,902 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed41.6 mi (67 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$4.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 66 over Stony Kill built?

It was built in 1886, making it 139 years old in 2025. It was reconstructed in 1998.

What condition is RTE 66 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 July 2024.

How much traffic does RTE 66 over Stony Kill carry?

About 1,824 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is RTE 66 over Stony Kill?

The structure is 99 ft (30.2 m) long with a longest span of 50 ft (15.2 m) and a deck 35 ft wide.

Who owns RTE 66 over Stony Kill?

It is owned by the State Highway Agency.