Quick Facts About Jackman Reservoir Dam
Jackman Reservoir Dam Map
Jackman Reservoir Dam Information
Jackman Reservoir Dam is an earthen embankment dam located in Hillsborough, Hillsborough, New Hampshire.
The dam, which is on the North Branch Contoocook River, was primarily built for Hydroelectric purposes, but also serves for benefits.
The dam was designed by and commissioned in 1926 and is currently owned by CENTRAL RIVERS POWER NH LLC.
Jackman Reservoir Dam Structure
The Jackman Reservoir Dam is approximately 1,844 feet (562 m) long, 43 feet (13 m) high and has a structural volume of cubic yards (0 cubic metres).
Jackman Reservoir Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 8,747 acre-ft (10,789 Ml) and maximum capacity of 12,400 acre-ft (15,295 Ml).
The surface area of the reservoir is 519 acres (210 ha) and the total catchment area is 63 square miles (163 square kilometres).
Jackman Reservoir Dam Spillway
According to the latest available data, the Jackman Reservoir Dam does not have any spillways.
Jackman Reservoir Dam Compared to Four Famous American Dams
Jackman Reservoir Dam Hillsborough, New Hampshire |
Hoover Dam Clark County, Nevada |
Grand Coulee Dam Okanogan County, Washington |
Theodore Roosevelt Dam Maricopa County, Arizona |
Glen Canyon Dam Coconino County, Arizona |
|
---|---|---|---|---|---|
Height (ft) | 43 | 730 | 550 | 357 | 216 |
Length (Ft) | 1,844 | 1,244 | 5,673 | 6,920 | 1,565 |
Storage Volume (acre-ft) | 12,400 | 30,237,000 | 9,562,000 | 3,540,000 | 29,875,000 |
Drainage Area (sq miles) | 63 | 167,800 | 74,100 | 3,611 | 108,355 |
Jackman Reservoir Dam Weather
Current Conditions at Jackman Reservoir Dam
Failed to fetch current weather data.7-Day Forecast for Jackman Reservoir Dam
Failed to fetch weather forecast data.Jackman Reservoir Dam Frequently Asked Questions
Jackman Reservoir Dam is in New Hampshire.
Jackman Reservoir Dam is in Hillsborough County.
Jackman Reservoir Dam is 43 feet high.
Jackman Reservoir Dam is 1,844 feet long.
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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