US Bridges

County Road 86 over Deer Hill Creek

Fair

Dutchess County, New York · 2.5 MI W of Amenia · Structure no. 000000003344030

Built
1929
96 years old, rebuilt 1987
Condition
Fair
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
957
2021 count
Owner
County
County Highway Agency

About this bridge

County Road 86 over Deer Hill Creek is a prestressed concrete box beam or girders - multiple carrying County Road 86 over Deer Hill Creek in Dutchess County, New York. It was built in 1929 and reconstructed in 1987, so it is 96 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 957 vehicles a day, roughly 6% of them trucks, projected to reach 1,340 by 2041. The structure is 34 ft (10.4 m) long and 33 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesCounty Road 86
CrossesDeer Hill Creek
Location2.5 MI W of Amenia
Coordinates41.8462, -73.60506
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
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating51.5 US tons
Inventory rating21.2 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span30 ft (9.1 m)
Deck width33 ft (10.2 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic957 (2021)
Projected traffic1,340 by 2041
Trucks6%
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$992,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 86 over Deer Hill Creek built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1987.

What condition is County Road 86 over Deer Hill Creek 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 October 2023.

How much traffic does County Road 86 over Deer Hill Creek carry?

About 957 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is County Road 86 over Deer Hill Creek?

The structure is 34 ft (10.4 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.

Who owns County Road 86 over Deer Hill Creek?

It is owned by the County Highway Agency.