Gilboa Dam

Gilboa Dam Quick Facts

Location: Schoharie, New York
Coordinates: 42.391111, -74.4511111
River: Schoharie Creek River
Primary Purpose: Water Supply
Type: Concrete Earth
Commissioned: 1926
Dam Height: 183 ft (56 m)
Dam Length: 2,273 ft (693 m)
Dam Capacity: 95,575 acre-ft (117,890 Ml)
Condition Assessment: Satisfactory
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Gilboa Dam Map

Gilboa Dam Information

Gilboa Dam is a concrete earth dam located about 3 miles from North Blenheim, Schoharie, New York.

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

The dam was designed by and commissioned in 1926 and is currently owned by NYCDEP DAMS WEST OF THE HUDSON RIVER.

Gilboa Dam Structure

The Gilboa Dam is approximately 2,273 feet (693 m) long, 183 feet (56 m) high and has a structural volume of cubic yards (0 cubic metres).

Gilboa Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 63,922 acre-ft (78,847 Ml) and maximum capacity of 95,575 acre-ft (117,890 Ml).

The surface area of the reservoir is 1,159 acres (469 ha) and the total catchment area is 314 square miles (813 square kilometres).

Gilboa Dam Spillway

The dam has a 1324 feet (404 m) wide uncontrolled spillway with a maximum discharge capacity of 168000 cubic feet per second (4757 cubic metres per second).

Gilboa Dam Compared to Five Famous American Dams

Height (ft)
Length (Ft)
Storage Volume (acre-ft)
Drainage Area (sq miles)
 
Gilboa Dam
Schoharie, New York
Height (ft)
183
Length (Ft)
2,273
Storage Volume (acre-ft)
95,575
Drainage Area (sq miles)
314
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

Gilboa Dam Weather

Current Conditions at Gilboa Dam

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7-Day Forecast for Gilboa Dam

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Gilboa Dam Frequently Asked Questions

In which state is the Gilboa Dam?

Gilboa Dam is in New York.

In which county is the Gilboa Dam?

Gilboa Dam is in Schoharie County.

How high is the Gilboa Dam?

Gilboa Dam is 183 feet high.

How long is the Gilboa Dam?

Gilboa Dam is 2,273 feet long.

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More Dams in Schoharie County:

Blenheim - Gilboa Lower Dam
Blenheim - Gilboa Upper Dam
Gilboa 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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