Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 122
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Book Description
Butterfield Pond Dam is a stone-filled gravity structure about 210 feet in overall length and 12.5 feet high from crest of dam to toe of slope, Located in the center of the dam is the principal overflow section which is 57 feet long and consists of a concrete capped, stone weir with concrete training walls, Near the middle of the overflow section is a 16.2 feet wide by 0.2 feet deep low flow spillway weir cast into the concrete cap. As a result of the poor visual inspection of this facility, the dam is considered to be in very poor condition. It is small in size with a significant hazard potential. The recommendations and remedial measure should be implemented as soon as possible. Keywords include: Inspection, Dam safety, Connecticut River Basin, Washington, New Hampshire, and Ashuelot River.
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 76
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Book Description
The dam is an earthen dam and stone structure about 190 ft. long with a maximum height of 13 ft. The dam is in fair condition. The inspection revealed seepage near the outlet works and near the right abutment. It is intermediate in size with a significant hazard classification. (Author).
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 75
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Book Description
Upper Reservoir Dam is a earthen structure with an overall length of 1340 ft. The dam has a height of 30 ft. as measured from the streambed to the crest of the dam. The top width is 9 ft. The upstream face is on a 2.25 horizontal to 1 vertical slope and the downstream slope is 2 horizontal to 1 vertical. The spillway consists of a 25 ft. long crest, concrete weir with training walls, which outlets to a 10 ft. wide stone wall channel. The dam is considered to be in good condition. It is small in size with a significant hazard potential. Keywords include: Visual inspection, Dam safety.
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 117
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Book Description
The dam is a concrete buttress structure with extensive earthfill at the downstream face. It is 526 ft. high and 43 ft high. The dam is considered to be in poor condition and the dike is considered to be in fair condition. Major soft, wet area with active seepage discharge at the downstream toe of the dam near the right abutment is among major concerns. It is intermediate in size with a high hazard potential.
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 88
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Book Description
The dam is a concrete gravity overflow structure constructed between three depressions in a ledge outcropping that forms the bottom of the Ammonoosuc River channel at this location. The dam is considered to be in poor condition. There are various major concerns which should be corrected to assure the continued performance of the dam. It is small in size with a significant hazard potential. (Author).
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 88
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Book Description
Based on the visual inspection, available records and past performance, the dam is considered to be in fair condition. Based on size and hazard classifications in accordance with Corps guidelines, the test flood is the PMF. In addition to long term recommendations, there are several remedial measures which should be implemented immediately.
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 81
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Book Description
Storrs Pond Dam is an earthen embankment structure with an overall length of 140 ft. Maximum height as measured from the crest of the dam to the streambed is 33.75 ft. Top width is 10 ft., and the upstream and downstream embankments are on a 2 1/2 horizontal to 1 vertical slope. The spillway is a circular drop inlet type, with an inside diameter of 10.0 ft. and is located near the center of the dam. The visual inspection revealed that the dam is in fair condition. It also revealed that deterioration of the concrete surface of the spillway and the invert of the spillway discharge tunnel. It is small in size with a hazard potential of significant. Keywords include: Inspection, Dam safety, Connecticut River Basin, Hanover, New Hampshire, and Camp Brook.
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 103
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Book Description
The dam is an earthfill gravity structure about 23 ft. high and 115 ft. long. The dam is considered to be in fair condition. It is intermediate in size with a significant hazard potential. There are various recommendations that should be implemented by the owner. (Author).
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 71
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Book Description
The dam is an 80 ft. long, 12 ft. high dam consisting of stone, earth and concrete. The visual inspection did not disclose any findings that indicate an immediate unsafe condition. The general condition of the dam is good. The dam's spillway will not pass the required test flood. The wet area found at the toe downstream should be examined when there is no flow through the spillway to determine if it is resulting from seepage through the dam or from water through the rock slope from the spillway. (Author).
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 147
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Book Description
The dam is a 1240 ft. long earthfill dam. The maximum height of the dam is 31 ft. The dam is judged to be in fair condition. It is intermediate in size with a high hazard potential classification. The slope on the upstream slope east of the spillway should be re-established. The exposed concrete surface of the core wall should be repaired. (Author).
