US Bridges

Lower Mine Road over East Branch Croton River

Fair

Putnam County, New York · 2.2 MI NE of Croton Falls · Structure no. 000000002224080

Built
1908
117 years old
Condition
Fair
inspected November 2023
Type
Arch - Deck
Concrete
Length
85 ft
1 main span
Daily traffic
411
2019 count
Owner
Local
Other Local Agency

About this bridge

Lower Mine Road over East Branch Croton River is a concrete arch - deck carrying Lower Mine Road over East Branch Croton River in Putnam County, New York. It was built in 1908, so it is 117 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 411 vehicles a day, roughly 1% of them trucks, projected to reach 575 by 2039. The structure is 85 ft (25.9 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLower Mine Road
CrossesEast Branch Croton River
Location2.2 MI NE of Croton Falls
CountyPutnam County
StateNew York
Coordinates41.37448, -73.63815
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating53.4 US tons
Inventory rating18.3 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length85 ft (25.9 m)
Longest span82 ft (24.9 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic411 (2019)
Projected traffic575 by 2039
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$4.1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lower Mine Road over East Branch Croton River built?

It was built in 1908, making it 117 years old in 2025.

What condition is Lower Mine Road over East Branch Croton 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 November 2023.

How much traffic does Lower Mine Road over East Branch Croton River carry?

About 411 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Lower Mine Road over East Branch Croton River?

The structure is 85 ft (25.9 m) long with a longest span of 82 ft (24.9 m) and a deck 28 ft wide.

Who owns Lower Mine Road over East Branch Croton River?

It is owned by the Other Local Agency.