Download or read book National Program for Inspection of Non Federal Dams Alton Power Dam NH 00011 Merrimack River Basin Alton 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 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam consists of a concrete gravity spillway and outlet works with an earth embankment at the left end. The dam is about 190 ft. long and its height is 16 ft. The dam is in fair condition. It is intermediate in size with a high hazard potential. (Author).

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1985-10 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Government Reports Annual Index written by and published by . This book was released on 1985 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.

Download or read book National Program for Inspection of Non Federal Dams Merrimack Village Dam NH 00115 Merrimack River Basin Merrimack 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 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The concrete dam is about 180 ft. long and is constructed on a circular arc. It is small in size with a low hazard potential classification. The dam is in fair condition. At the present time, there is no way to draw down the level of the reservoir. A program of annual technical inspections of the dam should be undertaken.

Download or read book National Program for Inspection of Non Federal Dams Weare Reservoir Dam NH 00114 Merrimack River Basin Weare 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 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is an on-stream concrete gravity dam. It is 340 ft. long and 34 ft. high. The dam is assessed to be in fair condition. It is recommended that the State carry out its planned renovation program, with a few additions, within the next couple of years. (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 Hillsborough Mills Dam NH 00258 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 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a concrete and stone masonry gravity dam with an overall length of about 200 ft. The dam is 23 ft. high. The dam is small in size with a low hazard potential. The test flood flow at the dam is taken as the 100 yr. flood. The dam is in poor condition at the present time. It is recommended that a registered professional engineer be retained by the owner to perform additional studies. (Author).

Download or read book National Program for Inspection of Non Federal Dams Stinson Lake Dam NH 00399 Merrimack River Basin Rumney 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 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stinson Brook Dam is a low concrete masonry gravity dam 158 ft, long and 7.7 ft. high. The overall condition of the dam is good. The spillway cannot pass the estimated PMF discharge, having a capacity of about 40% of the PMF without overtopping the dam. More hydrological and hydraulic studies are recommended. Keywords include: Visual inspection, Dam safety.

Download or read book National Program for Inspection of Non Federal Dams Tilton Town Dam NH 00151 Merrimack River Basin Tilton 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: The dam is 192 ft. long with a hydraulic height of 13 ft. The dam is in poor condition. Major concern is the poor condition of the timber frame spillway and wooden decking. It is small in size with a significant hazard potential. (Author).

Download or read book National Program for Inspection of Non Federal Dams Sewalls Falls Dam NH 00091 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 1979 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a run of the river type dam. It is 633 ft. long with a maximum height of 35.9 ft. The visual inspection of the dam revealed that the dam is in generally fair condition. Noted were some minor cracking and spalling of concrete on the abutments and the poor condition of the gates and mechanical operators. It is intermediate in size with a significant hazard potential. Keywords include: DAMS, INSPECTION, DAM SAFETY, Merrimack River Basin, Concord, New Hampshire, and Merrimack River.

Download or read book National Program for Inspection of Non Federal Dams Greggs Falls Dam N H 00093 Merrimack River Basin Goffstown 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 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: The earth embankment and concrete gravity dam is considered to be in good condition. It is believed to be safe under normal operating conditions. Based on size and hazard classifications in accordance with Corps guidelines, the test flood is the Probable Maximum Flood. In addition to the long term recommendations, there are several remedial measures which should be implemented immediately. (Author).

Download or read book National Program for Inspection of Non Federal Dams Uncanoonuc Lake Dam Number 2 NH 00021 NHWRB No 93 04 Merrimack River Basin Goffstown 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 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is an earthen embankment structure with a central concrete core wall about 147 ft. in overall length and 9 ft. high from the crest of the dam to downstream toe. The dam is considered to be in fair condition. It is classified as small in size and significant in its hazard classification. (Author).

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 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.