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West Branch Dam Quick Facts

Location: Putnam, New York
Coordinates: 41.411667, -73.6963889
River: West Branch Croton River
Primary Purpose: Water Supply
Type: Earth
Commissioned: 1895
Dam Height: 85 ft (26 m)
Dam Length: 1,795 ft (547 m)
Dam Capacity: 42,300 acre-ft (52,176 Ml)
Condition Assessment: Satisfactory
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West Branch Dam Map

West Branch Dam Information

West Branch Dam is an earthen embankment dam located about 1 miles from Crafts, Putnam, New York.

The dam, which is on the West Branch Croton River, was primarily built for Water Supply purposes, but also serves for benefits.

The dam was designed by and commissioned in 1895 and is currently owned by NYCDEP DAMS EAST OF THE HUDSON RIVER.

West Branch Dam Structure

The West Branch Dam is approximately 1,795 feet (547 m) long, 85 feet (26 m) high and has a structural volume of cubic yards (0 cubic metres).

West Branch Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 30,900 acre-ft (38,115 Ml) and maximum capacity of 42,300 acre-ft (52,176 Ml).

The surface area of the reservoir is 1,083 acres (438 ha) and the total catchment area is 43 square miles (111 square kilometres).

West Branch Dam Spillway

The dam has a 260 feet (79 m) wide controlled spillway with a maximum discharge capacity of 36000 cubic feet per second (1019 cubic metres per second).

West Branch Dam Compared to Five Famous American Dams

Height (ft)
Length (Ft)
Storage Volume (acre-ft)
Drainage Area (sq miles)
 
West Branch Dam
Putnam, New York
Height (ft)
85
Length (Ft)
1,795
Storage Volume (acre-ft)
42,300
Drainage Area (sq miles)
43
Hoover Dam
Clark County, Nevada
Height (ft)
730
Length (Ft)
1,244
Storage Volume (acre-ft)
30,237,000
Drainage Area (sq miles)
167,800
Grand Coulee Dam
Okanogan County, Washington
Height (ft)
550
Length (Ft)
5,673
Storage Volume (acre-ft)
9,562,0000
Drainage Area (sq miles)
74,100
Theodore Roosevelt Dam
Maricopa County, Arizona
Height (ft)
357
Length (Ft)
1,208
Storage Volume (acre-ft)
3,411,500
Drainage Area (sq miles)
5,736
Oroville Dam
Butte County, California
Height (ft)
235
Length (Ft)
6,920
Storage Volume (acre-ft)
3,540,000
Drainage Area (sq miles)
3,611
Glen Canyon Dam
Coconino County, Arizona
Height (ft)
216
Length (Ft)
1,565
Storage Volume (acre-ft)
29,875,000
Drainage Area (sq miles)
108,355

West Branch Dam Weather

Current Conditions at West Branch Dam

Parameter Value
Current Time 20:37
Sunrise 07:11
Sunset 16:25
Temperature (°F) 49
Feels Like (°F) 46
Cloud Coverage (%) 100
Pressure (inHg) 998
Humidity (%) 77
Wind Speed (mph) 7
Rain (mm) 2

7-Day Forecast for West Branch Dam

Day Min Temp (°F) Max Temp (°F) Feels Like (°F) Pressure (inHg) Humidity (%) Wind Speed (mph) Wind Gust (mph) Wind Dir Precip Prob (%) Precip Volume (mm) Weather
Today 43 59 57 1003 97 26 58 S 100 35 rain and snow
Thu 25 42 27 1019 58 15 32 WNW 80 - scattered clouds
Fri 23 31 18 1038 37 11 21 WNW 0 - clear sky
Sat 21 33 27 1048 41 3 5 NNE 0 - clear sky
Sun 25 39 29 1043 53 8 14 SSE 0 - overcast clouds
Mon 34 44 40 1029 98 9 31 SSE 100 13 moderate rain
Tue 36 54 53 1009 95 15 37 WSW 100 5 moderate rain
Wed 31 43 33 1025 66 14 32 WNW 0 - clear sky

West Branch Dam Frequently Asked Questions

In which state is the West Branch Dam?

West Branch Dam is in New York.

In which county is the West Branch Dam?

West Branch Dam is in Putnam County.

How high is the West Branch Dam?

West Branch Dam is 85 feet high.

How long is the West Branch Dam?

West Branch Dam is 1,795 feet long.

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More Dams in Putnam County:

Ash Pond E Dam
Bog Brook Dam #1
Bog Brook Dam #2
Boyds Corner Dam
Carmel Auxiliary Dike
Croton Falls Dam
Henry H. Buckman Lock Dam
Heritage Lake Dam
John Amos Flyash Dam
Kirkpatrick Dam and Rodman Reservoir
Lake Mahopac Dam
Lake Thunderhead Dam
Little Walnut Creek Conservancy District - Structure 5 Dam
Little Walnut Creek Conservancy District Structure #4 Dam
Middle Branch Dam
Secondary Wastewater Treatment Impoundment Dam
Sodom Dam
West Branch Dam

Condition Assessment Classification

Satisfactory

No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.

Fair

No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum

Poor

A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.

Unsatisfactory

A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.

Not Rated

The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.

Not Available

Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High

Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.

Significant

Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.

Low

Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner’s property.

Undetermined

Dams for which a downstream hazard potential has not been designated or is not provided.

Not Available

Dams for which the downstream hazard potential is restricted to approved government users.

Source: National Inventory of Dams

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