Download or read book National Programs for Inspection of Non Federal Dams Baker Floodwater Reservoir Site 2 NH 00231 NHWRB Number 244 10 Merrimack River Basin Warren New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1979 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a 805 ft. long, 68 ft. high earthen embankment structure with three different fill zones. The visual inspection indicated that the dam is in good condition. The inspection revealed minor deterioration of concrete on the riser structure and at the end of the 4 ft. diameter outlet pipe. It is intermediate in size with a high hazard potential. There are no recommendations for the dam based on the inspection report. (Author).

Download or read book National Program for Inspection of Non Federal Dams Baker Floodwater Reservoir Site 11A NH 00247 NHWRB Number 249 14 Merrimack River Basin Wentworth New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1979 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Baker Floodwater Reservoir Site 11A is a 640 foot long 24 foot high earthen structure. There is one fill zone in the dam which includes a cutoff wall. Top width of the dam is 12 feet. The upstream and downstream embankments are on a 3 horizontal to 1 vertical slope. Appurtenant structures consist of a principal spillway, plunge pool stilling basin and emergency spillway. The visual inspection revealed that the dam is in good condition. The inspections also revealed random surface cracks and scaling of the concrete on the riser structure. It is small in size with a high hazard potential classification. Keywords include: Inspection, Dam safety, Merrimack River Basin, Wentworth, New Hampshire, and Tributary to Baker River.

Download or read book National Program for Inspection of Non Federal Dams Baker Floodwater Reservoir Site 5 and Dike NH 00245 00246 NHWRB Number 249 11 Merrimack River Basin Wentworth New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1979 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a 807 ft. long 48 ft. high earthen structure. The dike is an earthen structure about 600 ft. long and 11.5 ft. high. The inspection revealed both the dam and dike to be in good condition. There were no recommendations for the dam after this inspection. The dam is intermediate in size with a significant hazard potential. (Author).

Download or read book National Program for Inspection of Non Federal Dams Baker Floodwater Reservoir Site 6 NH 00243 NHWRB Number 24901 Merrimack River Basin Wentworth New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1979 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is an earthen structure consisting of homogeneous silty sand and earth fill on a bedrock foundation. The inspection revealed that the dam is in good condition. It is intermediate in size with a significant hazard classification. There are various remedial measures which should be implemented by the owner. (Author).

Download or read book National Program for Inspection of Non Federal Dams Baker Floodwater Reservoir Site 11 NH 00478 NHWRB No 249 13 Merrimack River Basin Wentworth New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1979 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a 691 ft. long 24 ft. high earthen structure. The dam is judged to be in good condition. There were a few items noted during the inspection which require attention. It is small in size with a significant hazard potential. There are no other recommendations resulting from the inspection. (Author).

Download or read book National Program for Inspection of Non Federal Dams Souhegan River Watershed Dam Number 26 NH 00207 NHWRB 234 08 Merrimack River Basin Temple New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1979 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Souhegan River Watershed Dam No. 26 is located on Blood Brook, a tributary of the Souhegan River, approximately 2 miles upstream of West Wilton, New Hampshire. The dam is an earth embankment 692 feet long and 79 feet high with a drop inlet service spillway structure and a 30 inch outlet conduit. An emergency spillway 320 feet wide is cut into the left abutment.

Download or read book National Program for Inspection of Non Federal Dams Souhegan River Watershed Dam Number 14 NH 00433 NHWRB 175 01 Merrimack River Basin New Ipswich New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1979 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Souhegan River Watershed Dam No. 14 is located on Furnace Brook approximately 1/2 mile upstream of New Ipswich Center, NH. The dam is an earth embankment 1,500 feet long and 35 feet high with a drop inlet service spillway structure and a 30 inch outlet conduit. An earth emergency spillway 120 feet wide is cut into the left abutment. It is small in size with a high hazard potential. The test flood is the PMF. The dam is in good condition at the present time although there were some remedial measure which must be undertaken by the owner. No conditions were observed which require additional investigation. Keywords include: Visual inspection, Dam safety, Merrimack River Basin, New Ipswich, New Hampshire, and Furnace Brook tributary of Souhegan River.

Download or read book National Program for Inspection of Non Federal Dams Souhegan River Watershed Dam Number 10A NH 00264 NHWRB 254 33 Merrimack River Basin Wilton New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1979 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Souhegan River Watershed Dam No. 10A is located on Mill Brook approximately one mile upstream of Davisville, N.H. The dam is an earth embankment 951 feet long and 59 feet high with a drop inlet service spillway structure and a 30 inch outlet conduit. An earth emergency spillway 220 feet wide is cut into the left abutment. An earth emergency spillway 110 feet wide is cut into the right abutment. The dam is intermediate in size with a high hazard potential. The dam is in good condition at the present time. It is recommended that the owner retain the services of a registered professional engineer to investigate the cracking and erosion of the outlet conduit. Keywords include: Visual inspection, Dam safety, Merrimack River Basin, Wilton, New Hampshire, and Mill Brook, a Tributary of the Souhegan River.

Download or read book National Program for Inspection of Non Federal Dams Mountain Pond Dam NH 00464 NHWRB 211 07 Merrimack River Basin Sanbornton New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1978 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mountain Pond Dam is located on the north end of Mountain Pond in Sanbornton, N.H., in mountainous terrain two miles south of the village of New Hampton. The dam is an earth embankment, 97 feet long and 14 feet high with a gated 8-inch outlet. The impoundment stores the water supply for the Town of New Hampton and is also the fire protection reserve. It is small in size with a low hazard potential. The test flood is in the range of a 50 to 100 year frequency. The condition of the dam is considered to be fair, requiring that modifications be made by the owner within 1-2 years after receipt of this inspection report. Keywords include: Inspection, Dam safety, Merrimack River Basin, Sanbornton, New Hampshire, and Tributary of Pemigewasset River.

Download or read book National Program for Inspection of Non Federal Dams Crystal Lake Dam NH 00018 NHWRB Number 91 11 Merrimack River Basin Gilmanton New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1978 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a 188 ft. long, 16 ft. high earth embankment dam. The condition is fair. The visual inspection did not disclose any immediate safety problems. The dam's spillway will not pass the test flood, therefore it is recommended that the owner engage a qualified engineer to evaluate further the potential for overtopping the inadequacy of the spillway. (Author).

Download or read book National Program for Inspection of Non Federal Dams Kelleys Falls Dam NH 00299 NHWRB No 150 02 Merrimack River Basin Manchester New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1979 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kelleys Falls Dam is a run of the river type dam, with an overall length of 503 feet. Visual inspection of the dam indicated that the dam is in poor condition. The inspection revealed a number of leaks through the mass concrete spillway section, considerable loss of concrete from the spillway section, seepage around the concrete wall on the right side of the dam, and general deterioration of concrete on the abutments and hydro-building. Based on the intermediate size of the dam and the significant hazard classification and in accordance with Corps of Engineers guidelines, the test flood is one half the Probable Maximum Flood (PMF) or 55,900 cfs. The one half PMF outflow overtops the dam by 6.8 feet. With the water level at the top of the dam, the spillway will pass 38 percent of the test flood outflow. It is recommended that the owner engage a qualified engineer to make thorough investigation of the condition of the foundation of the spillway section of the dam, investigate the structural stability of the spillway section and ways to increase the spillway capacity. Also, the owner should remove the flashboards on the dam immediately. Additional keywords: Merrimack River Basin, Manchester, and New Hampshire.

Download or read book National Program for Inspection of Non Federal Dams White s Pond Dam NH 00106 NHWRB 195 07 Merrimack River Basin Pittsfield New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1978 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam consists of a 260 ft. long granite-faced earth dam with spillway, flume, and outlet culvert consisting of granite masonry and concrete. It is small in size with a significant hazard potential classification. It is in fair condition. Although there is no immediate concern, features revealed by this inspection do require attention. A formal sequenced operation plan for emergencies involving upstream and downstream dam operations should be developed and submitted to the NHWRB for review and comment.

Download or read book National Program for Inspection of Non Federal Dams Ward Dam NH 00262 NHWRB 254 18 Merrimack River Basin West Wilton New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1980 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ward Dam is a gravity arch structure constructed of rubble stone and split stone masonry, founded on bedrock. It is approximately 260 ft. long and 18 ft. high, For the purposes of this report, the top of the dam has been taken to be the top of the training wall at the right abutment. The overflow type spillway has a crest length of 29 ft. and is 14.5 ft. above the streambed. The dam is in poor condition at the present time. It is recommended that the owner undertake remedial measures within one year of receipts of the Phase I report. Keywords include: Visual inspection, Dam safety, Merrimack River Basin, West Wilton, New Hampshire, and Blood Brook, a tributary of the Souhegan River.

Download or read book National Program for Inspection of Non Federal Dams St Pauls School Dam NH 00361 NHWRB Number 51 25 Merrimack River Basin Concord New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1980 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: St. Pauls School Dam is a concrete overflow section approximately 15 ft. high from the bottom of the upstream channel to the top of the training walls and approximately 100 ft. long between the training walls. The upstream face of the concrete section is vertical and measures approximately 9 ft. from its crest to a concrete apron on the channel bottom. The dam is in fair condition at the present ime, with a few major concerns which must be corrected. The size is intermediate with a significant hazard potential. The dam could be damaged by the discharge over the abutments. It is not anticipated that lives would be lost. Keywords include: Visual inspection, Dam safety, Merrimack River Basin, Concord New Hampshire, and Turkey River.

Download or read book National Program for Inspection of Non Federal Dams Souhegan River Watershed Dam Number 35 NH 00435 NHWRB 175 21 Merrimack River Basin New Ipswich New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1979 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Souhegan River Watershed Dam No. 35 is an earth embankment 1209 ft. long and 30 ft. high with a drop inlet service spillway structure and a 36 inch outlet conduit. An emergency spillway 255 ft. wide is cut into the left abutment. The dam is intermediate in size with a high hazard potential. The test flood is the PMF. The dam is in good condition at the present time. There are various remedial measures which must be undertaken by the owner. Keywords include: Visual inspection, Dam safety.

Download or read book National Program for Inspection of Non Federal Dams Souhegan River Watershed Dam Number 25B NH 00476 NHWRB 234 12 Merrimack River Basin Temple Wilton New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1979 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is an earth embankment dam 695 ft. long and 69 ft. high. It is intermediate in size with a high hazard potential. The test flood for the dam is the PMF. The dam is in good condition at the present time. There are various remedial measures which should be implemented by the owner. The program of annual technical inspections should be continued. No conditions were observed which require further investigations.

Download or read book National Program for Inspection of Non Federal Dams Noone Mills Dam NH 00427 NHWRB Number 191 02 Merrimack River Basin Peterborough New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1980 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a stone-filled, concrete capped gravity overflow structure about 20 ft. high and 267 ft. long. The dam is considered to be in poor condition. It is small in size with a high hazard classification. There are a few major concerns which must be attended to. The potential for the loss of more than a few lives and extensive economic loss would exist. (Author).