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Diamond Hill Reservoir Dam
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Diamond Hill Reservoir Dam Share
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Overview Share
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Cumberland, Rhode Island
Water Supply
Local government owned
Built in 1971

Diamond Hill Reservoir Dam is built on the Burnt Swamp Brook River and is located in Cumberland, Rhode Island. It was built in 1971 for the purpose of water supply.

The dam is owned by the local government. It is also known as Pawtucket Upper Reservoir.

Location
Diamond Hill Reservoir Dam
Cumberland, Rhode Island, U.S.
Dam type
Other
Dam type
Water supply
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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Pawtucket Water Supply Board
Owner
Local government

Diamond Hill Reservoir Dam is owned by the local government.

Construction Share
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1971
Completed
Burnt Swamp Brook River
River built on
Diamond Hill Reservoir Dam was built in 1971.
Metrics Share
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Summary
Dam length 2,000 feet
Dam height 76 feet
Structural height 80 feet
Hydraulic height 71 feet
Max discharge 3,100 cubic feet per second
Max storage 15,680 acre feet
Normal storage 11,000 acre feet
Surface area 390 acres
Drainage area 8 square miles
2,000 feet
Dam length

Length of the dam is defined as the length along the top of the dam. This also includes the spillway, powerplant, navigation lock, fish pass, etc., where these form part of the length of the dam. If detached from the dam, these structures should not be included.

76 feet
Dam height

Height of the dam is defined as the vertical distance between the lowest point on the crest of the dam and the lowest point in the original streambed.

80 feet
Structural height

Structural height of the dam is defined as the vertical distance from the lowest point of the excavated foundation to the top of the dam. Top of dam refers to the parapet wall and not the crest.

71 feet
Hydraulic height

Hydraulic height of the dam is defined as the vertical difference between the maximum design water level and the lowest point in the original streambed.

3,100 cubic feet per second
Max discharge

Number of cubic feet per second the spillway is capable of discharging when the reservoir is at its maximum designed water surface elevation.

15,680 acre feet
Max storage

Maximum storage is defined as the total storage space in a reservoir below the maximum attainable water surface elevation, including any surcharge storage.

11,000 acre feet
Normal storage

Normal storage is defined as the total storage space in a reservoir below the normal retention level, including dead and inactive storage and excluding any flood control or surcharge storage. For normally dry flood control dams, the normal storage will be a zero value.

390 acres
Surface area

Surface area, in acres, of the impoundment at its normal retention level.

8 square miles
Drainage area

Drainage area of the dam, in square miles, which is defined as the area that drains to a particular point (in this case, the dam) on a river or stream.

Safety Share
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High
Downstream potential hazard

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

No emergency action plan
Emergency action plan

An emergency action plan is defined as a plan of action to be taken to reduce the potential for property damage and loss of life in an area affected by a dam failure or large flood.

8/20/2014
Most recent inspection date

Inspections are every 2 years.

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Also known as Pawtucket Upper Reservoir
Distance to nearest town (miles) 1
Latitude 41
Longitude -71
NID ID (National ID) RI00802

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