National Program for Inspection of Non-Federal Dam. First Connecticut Lake Dam (NH 00186), NHWRB 194.02, Connecticut River Basin, Pittsburg, New Hampshire. Phase I Inspection Report PDF Download
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Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 105
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Book Description
The dam is a concrete gravity dam with earth embankments at each end. The dam is considered to be in good condition, although the deteriorated concrete requires superficial patch work in many places. It is large in size with a low hazard potential. (Author).
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 105
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Book Description
The dam is a concrete gravity dam with earth embankments at each end. The dam is considered to be in good condition, although the deteriorated concrete requires superficial patch work in many places. It is large in size with a low hazard potential. (Author).
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 96
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Book Description
The dam is a 28 ft. high concrete dam with earth embankments on both sides. The dam is in good condition although deteriorated concrete requires superficial patch work. Continuance of this classification depends on proper operations and maintenance of the dam. 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 : 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 : 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 : 73
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Book Description
The dam is an 83 ft. long earth-filled masonry crib with a maximum height of about 11 ft. It is intermediate in size with a significant hazard potential. The test flood is between the 1/2 PMF and full PMF. The dam is in fair condition, at the present time and requires some routine maintenance. Based on the dams fair condition, periodic technical inspections should be scheduled every two years. (Author).
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 168
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Book Description
Murphy Dam consists of an earth embankment dam with a side approach channel overflow spillway. The crest length of the dam embankment is 2,200 ft. with a hydraulic height of 106 ft. The dam consists of an earth embankment dam with a side approach channel overflow spillway. It is large in size with a high hazard potential. The dam is in good condition. Although some deficiencies were noted, there was no evidence of settlement, lateral movement or other signs of structural failure, or other conditions which would warrant urgent remedial action. Keywords include: Inspection, Dam safety, Connecticut River Basin, and Pittsburg New Hampshire.
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 96
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Book Description
The dam is constructed of rock and earth filled timber cribbing and is equipped with 6.2 ft. of nonfailing flashboards. It is about 275 ft. long and 15 ft. high. It is small in size with a high hazard potential. One half of the PMF has been adopted as the appropriate test flood. The dam is in fair condition at the present time. There are various remedial measures which require attention.
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 : 83
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Book Description
The dam has a maximum height of 45 ft. and is about 415 ft. long. The dam is judged to be in good condition. Two wet patches were observed on the downstream side above the elevation of the permanent pool. The dam is classified as intermediate in size with a hazard potential of high. There is work which must be done on the remaining spillway to assure the continued performance of the dam. (Author).
