US Bridges

Dover Furnace Road over Mill River

Poor

Dutchess County, New York · 3.2 MI SW of Dover Plns · Structure no. 000000003342930

Built
1938
87 years old, rebuilt 1998
Condition
Poor
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
53 ft
1 main span
Daily traffic
851
2019 count
Owner
County
County Highway Agency

About this bridge

Dover Furnace Road over Mill River is a prestressed concrete box beam or girders - multiple carrying Dover Furnace Road over Mill River in Dutchess County, New York. It was built in 1938 and reconstructed in 1998, so it is 87 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 851 vehicles a day, roughly 4% of them trucks, projected to reach 1,191 by 2039. The structure is 53 ft (16.2 m) long and 28 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesDover Furnace Road
CrossesMill River
Location3.2 MI SW of Dover Plns
RouteCounty Highway 0
Coordinates41.69079, -73.5911
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92 US tons
Inventory rating45 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length53 ft (16.2 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic851 (2019)
Projected traffic1,191 by 2039
Trucks4%
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Dover Furnace Road over Mill River built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1998.

What condition is Dover Furnace Road over Mill River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2023.

How much traffic does Dover Furnace Road over Mill River carry?

About 851 vehicles per day (2019 count), of which roughly 4% are trucks.

How long is Dover Furnace Road over Mill River?

The structure is 53 ft (16.2 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns Dover Furnace Road over Mill River?

It is owned by the County Highway Agency.