US Bridges

County Road 8 over Dover Kill

Fair

Columbia County, New York · 0.9 MI SE of Snyderville · Structure no. 000000003342580

Built
1951
74 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
704
2017 count
Owner
County
County Highway Agency

About this bridge

County Road 8 over Dover Kill is a concrete slab carrying County Road 8 over Dover Kill in Columbia 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 704 vehicles a day, roughly 4% of them trucks, projected to reach 986 by 2037. The structure is 30 ft (9.1 m) long and 29 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

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CarriesCounty Road 8
CrossesDover Kill
Location0.9 MI SE of Snyderville
RouteCounty Highway 0
CountyColumbia County
StateNew York
Coordinates42.08007, -73.74845
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 alignment7: Better than present minimum criteria
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width29 ft (8.9 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic704 (2017)
Projected traffic986 by 2037
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$762,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 8 over Dover Kill built?

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

What condition is County Road 8 over Dover 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 September 2024.

How much traffic does County Road 8 over Dover Kill carry?

About 704 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is County Road 8 over Dover Kill?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 29 ft wide.

Who owns County Road 8 over Dover Kill?

It is owned by the County Highway Agency.