National Program for Inspection of Non-Federal Dams. Seaver Reservoir Dam (NH 00094), State Number 109.11, Connecticut River Basin, Harrisville, 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 : 100
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Book Description
The dam has a hydraulic height of 28 ft. and is 325 ft. long. It is an earthfill embankment with a vertical 4 ft. square concrete drop inlet spillway which discharges reinforced concrete pipe outlet. The dam is in very poor condition. There are various major concerns which must be corrected. The dam 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 : 100
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Book Description
The dam has a hydraulic height of 28 ft. and is 325 ft. long. It is an earthfill embankment with a vertical 4 ft. square concrete drop inlet spillway which discharges reinforced concrete pipe outlet. The dam is in very poor condition. There are various major concerns which must be corrected. The dam 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 : 84
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Book Description
Rice Reservoir Dam has a hydraulic height of 48 ft., is 12 ft. wide, and is 980 ft. kong, It is earthen embankment dam, having a reinforced concrete core and a small chute-type spillway. The dam is in fair condition. It is intermediate in size with a significant hazard potential. Keywords include: Visual inspection, Dam safety, Connecticut River Basin, Claremont, New Hampshire, and Stevens Brook.
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 : 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 : 92
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Book Description
The stone masonry dam with upstream earthfill has a hydraulic height of 30 ft. and is 90 ft. long. The dam is in poor condition. There are some major concerns which should be implemented. The dam is small in size with a significant hazard potential. The test flood is 1/2 the PMF. A major breach at top of dam probably would not result in the loss of lives, but could cause appreciable property damage.
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 109
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Book Description
The dam is constructed of reinforced concrete and earth fill. It is about 225 ft. long and 16.6 ft. high. The dam is small in size with a high hazard potential. The dam is in poor condition at the present time. The spillway is capable of passing 5% of the Test Flood routed peak outflow. (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 : 83
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Book Description
The dam consists of dry rubble masonry capped with concrete and an earthfill embankment with a total length of about 157 ft. and 28 ft. above the stream bed. The dam is judged to be in good condition. The protective covering of the stone placed on the outlet channel has been washed away. It is intermediate in size with a high hazard potential. There are various remedial measures which must be corrected to assure the continued performance of the dam. (Author).
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 100
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Book Description
The dam is an earth embankment, about 300 ft. long and 40 ft. high, with a 6 ft. wide channel spillway. Lives in the houses would be threatened by a dam failure. It is intermediate in size with a high hazard category. The test flood for the dam is the PMF. The dam is in fair condition at the present time. Further investigations are recommended to evaluate the adequacy of the spillway and the stability of the downstream slope. (Author).
Author: CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 82
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Book Description
The dam is an earthen structure with an overall length of 1023 ft. and a maximum height of 33 ft. The dam is considered to be in poor condition. Seepage was noted both under the stone arch bridge and at the joint of the spillway weir and spillway apron slab. It is small in size with a hazard potential of significant.
