Churchill Dam

Churchill Dam Quick Facts

Location: Piscataquis, Maine
Coordinates: 46.493333, -69.2883333
River: Allagash River
Primary Purpose: Hydroelectric
Type: Concrete Timber Crib Earth Gravity
Commissioned: 1968
Dam Height: 20 ft (6 m)
Dam Length: 470 ft (143 m)
Dam Capacity: 99,000 acre-ft (122,115 Ml)
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Churchill Dam Map

Churchill Dam Information

Churchill Dam is a concrete timber crib earth gravity dam located in T11 R13, Piscataquis, Maine.

The dam, which is on the Allagash River, was primarily built for Hydroelectric purposes, but also serves for Recreation benefits.

The dam was designed by and commissioned in 1968 and is currently owned by BPL, DOC/State of Maine (Allagash Wilderness Waterway).

Churchill Dam Structure

The Churchill Dam is approximately 470 feet (143 m) long, 20 feet (6 m) high and has a structural volume of cubic yards (0 cubic metres).

Churchill Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 78,000 acre-ft (96,211 Ml) and maximum capacity of 99,000 acre-ft (122,115 Ml).

The surface area of the reservoir is 10,016 acres (4,053 ha) and the total catchment area is 0 square miles (0 square kilometres).

Churchill Dam Spillway

According to the latest available data, the Churchill Dam does not have any spillways.

Churchill Dam Compared to Five Famous American Dams

Height (ft)
Length (Ft)
Storage Volume (acre-ft)
Drainage Area (sq miles)
 
Churchill Dam
Piscataquis, Maine
Height (ft)
20
Length (Ft)
470
Storage Volume (acre-ft)
99,000
Drainage Area (sq miles)
0
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

Churchill Dam Weather

Current Conditions at Churchill Dam

Failed to fetch current weather data.

7-Day Forecast for Churchill Dam

Failed to fetch weather forecast data.

Churchill Dam Frequently Asked Questions

In which state is the Churchill Dam?

Churchill Dam is in Maine.

In which county is the Churchill Dam?

Churchill Dam is in Piscataquis County.

How high is the Churchill Dam?

Churchill Dam is 20 feet high.

How long is the Churchill Dam?

Churchill Dam is 470 feet long.

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More Dams in Piscataquis County:

Caucomgomoc Lake Dam
Churchill Dam
First Roach Pond Dam
Harrington Lake Dam
Lock Dam
Loon Lake Dam
Millinocket Lake Dam
Nesowadnehunk Dam
Ragged Lake Dam
Ripogenus Dam
Schoodic Lake Dam
Sebec Dam
Seboeis Lake Dam
Telos Dam
Wilson Pond Dam
Wilson Stream 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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