US Bridges

Nelson Hill Road over Wassaic Creek

Fair

Dutchess County, New York · 1.3 MI NW of S.Amenia · Structure no. 000000002262810

Built
1925
100 years old, rebuilt 2010
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
206
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Nelson Hill Road over Wassaic Creek is a prestressed concrete box beam or girders - multiple carrying Nelson Hill Road over Wassaic Creek in Dutchess County, New York. It was built in 1925 and reconstructed in 2010, so it is 100 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 6 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 206 vehicles a day, roughly 6% of them trucks, projected to reach 288 by 2040. The structure is 47 ft (14.3 m) long and 16 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesNelson Hill Road
CrossesWassaic Creek
Location1.3 MI NW of S.Amenia
Coordinates41.80496, -73.56035
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating47.3 US tons
Inventory rating20.3 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length47 ft (14.3 m)
Longest span42 ft (12.8 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic206 (2020)
Projected traffic288 by 2040
Trucks6%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$509,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nelson Hill Road over Wassaic Creek built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 2010.

What condition is Nelson Hill Road over Wassaic 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 May 2023.

How much traffic does Nelson Hill Road over Wassaic Creek carry?

About 206 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Nelson Hill Road over Wassaic Creek?

The structure is 47 ft (14.3 m) long with a longest span of 42 ft (12.8 m) and a deck 16 ft wide.

Who owns Nelson Hill Road over Wassaic Creek?

It is owned by the Town or Township Highway Agency.