US Bridges

County Road 105 over Ten Mile River

Fair

Dutchess County, New York · 1.8 MI SW of S.Amenia · Structure no. 000000003342670

Built
1939
86 years old, rebuilt 2005
Condition
Fair
inspected July 2023
Type
Frame
Concrete Continuous
Length
125 ft
3 main spans
Daily traffic
994
2021 count
Owner
County
County Highway Agency

About this bridge

County Road 105 over Ten Mile River is a concrete continuous frame carrying County Road 105 over Ten Mile River in Dutchess County, New York. It was built in 1939 and reconstructed in 2005, so it is 86 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 994 vehicles a day, roughly 11% of them trucks, projected to reach 1,392 by 2041. The structure is 125 ft (38.1 m) long and 29 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesCounty Road 105
CrossesTen Mile River
Location1.8 MI SW of S.Amenia
RouteCounty Highway 0
CountyDutchess County
StateNew York
Coordinates41.7806, -73.55886
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating52 US tons
Inventory rating22 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadUnknown
Structure length125 ft (38.1 m)
Longest span78 ft (23.7 m)
Deck width29 ft (8.9 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic994 (2021)
Projected traffic1,392 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$2.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 105 over Ten Mile River built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 2005.

What condition is County Road 105 over Ten Mile River 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 2023.

How much traffic does County Road 105 over Ten Mile River carry?

About 994 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is County Road 105 over Ten Mile River?

The structure is 125 ft (38.1 m) long with a longest span of 78 ft (23.7 m) and a deck 29 ft wide.

Who owns County Road 105 over Ten Mile River?

It is owned by the County Highway Agency.