US Bridges

Powder Mill Road over Quassaic Creek

Fair

Orange County, New York · 2.4 MI NW of Newburgh · Structure no. 000000003360200

Built
1977
48 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
1 main span
Daily traffic
3,868
2021 count
Owner
County
County Highway Agency

About this bridge

Powder Mill Road over Quassaic Creek is a steel stringer/multi-beam or girder carrying Powder Mill Road over Quassaic Creek in Orange County, New York. It was built in 1977, so it is 48 years old, younger 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 3,868 vehicles a day, roughly 3% of them trucks, projected to reach 5,415 by 2041. The structure is 55 ft (16.8 m) long and 35 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesPowder Mill Road
CrossesQuassaic Creek
Location2.4 MI NW of Newburgh
Coordinates41.52542, -74.05498
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating36 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span48 ft (14.6 m)
Deck width35 ft (10.7 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,868 (2021)
Projected traffic5,415 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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$1.9 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Powder Mill Road over Quassaic Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is Powder Mill Road over Quassaic 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 December 2024.

How much traffic does Powder Mill Road over Quassaic Creek carry?

About 3,868 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Powder Mill Road over Quassaic Creek?

The structure is 55 ft (16.8 m) long with a longest span of 48 ft (14.6 m) and a deck 35 ft wide.

Who owns Powder Mill Road over Quassaic Creek?

It is owned by the County Highway Agency.