Download or read book National Program for Inspection of Non Federal Dam Kilburn Pond Dam NH 00298 NHWRB Number 255 09 Connecticut River Basin Winchester 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 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a concrete gravity dam structure consisting of an overflow section and gate house structure and is about 35 ft. long between the ledge abutments. The dam is about 15 ft. high. Because of the lack of a low level functioning outlet, the dam is rated fair. It is small in size with a significant hazard potential. A major breach at top of dam would leave the potential of loss of less than a few lives, as well as economic loss. (Author).

Download or read book National Program for Inspection of Non Federal Dams Robertson Dam NH 00276 NHWRB Number 255 02 Connecticut River Basin Winchester 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 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a run-of-the-river dam consisting of a rock filled timber crib overflow section capped with a 10 inch thick concrete slab. It is 150 ft. long with a maximum height of 17 ft. The maximum storage capacity at top of dam is 112 acre ft. The dam is considered to be in poor condition. The dam is small in size with a significant hazard potential. (Author).

Download or read book National Program for Inspection of Non Federal Dams Minnewawa Dam NH 00104 NHWRB 151 06 Connecticut River Basin Marlborough 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 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book National Program for Inspection of Non Federal Dams Butterfield Pond Dam NH 00233 NHWRB Number 245 01 Connecticut River Basin Washington 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 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book National Program for Inspection of Non Federal Dams Upper Reservoir Dam NH 00049 NHWRB Number 108 06 Connecticut River Basin Hanover 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 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book National Program for Inspection of Non Federal Dams Dole Reservoir Dam Dike NH 00143 NH 00483 NHWRB Number 47 17 Connecticut River Basin Claremont 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 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book National Program for Inspection of Non Federal Dams Upper Ammonoosuc Dam NH 00370 NHWRB 182 04 Connecticut River Basin Northumberland New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1981 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book National Program for Inspection of Non Federal Dams Storrs Pond Dam NH 00050 NHWRB Number 108 07 Connecticut River Basin Hanover 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 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book National Program for Inspection of Non Federal Dams Ammonoosuc River Dam NH 00061 NHWRB Number 17 02 Connecticut River Basin Bath 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 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).

Download or read book National Program for Inspection of Non Federal Dams Babbidge Reservoir Dam NH 00398 NHWRB 206 03 Connecticut River Basin Roxbury New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1981 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Babbidge Reservoir Dam is a 38-foot-high earth embankment with a reinforced concrete corewall. There is a 36-foot-long concrete overflow spillway at the left abutment and a gatehouse at the crest which controls flow from the reservoir and from the Quarry Dam upstream. It is small in size with a high hazard potential. Significant economic loss and possible loss of more than a few lives could result from the event of a dam failure. With stoplogs, the spillway is capable of passing 9% of the test flood. The dam is in fair condition. Remedial measures should be undertaken by the owner. Keywords include: Inspection, Dam safety, Connecticut River Basin, Roxbury, New Hampshire, and Roaring Brook.

Download or read book National Program for Inspection of Non Federal Dams Granite Lake Dam NH 00336 NHWRB 166 02 Connecticut River Basin Nelson 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 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a dry rubble masonry dam with a concrete facing. It is about 78 ft. long with a maximum height to 34 ft. The overall condition of the dam is considered to be fair. At the time of the inspection the penstock opening has been sealed and the intake gate removed. It is intermediate in size with a significant hazard potential. The test flood would overtop the dam by 2.8 ft. There are various maintenance and operating measures which should be implemented.

Download or read book National Program for Inspection of Non Federal Dams Goose Pond Dam NH 00101 Connecticut River Basin Keene 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 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is located on an unnamed tributary of the Ashuelot River. The dam is an earth embankment about 210 ft. long and 23 ft. high. The dam was originally used as a water supply but now serves only as recreation. The dam is in fair condition. The drainage area covers 1.5 square miles and is made up primarily of mountainous woodland with some pasture and minor development. It is small in size with a high hazard potential. (Author).

Download or read book National Program for Inspection of Non Federal Dams Grafton Pond Dam NH 00119 NHWRB 96 01 Connecticut River Basin Grafton 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 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a gravity concrete structure which about 285 ft. long and has a maximum height of 21 ft. It is intermediate in size with a low hazard potential. The dam is in very poor condition. Deterioration of the dam's two key structural elements, the upstream facing wall and its supporting buttresses, appears to seriously threaten the integrity of the structure. Due to the nature and extent of the deficiencies in this dam, remedial measures should be implemented immediately.

Download or read book National Program for Inspection of Non Federal Dams Lower Reservoir Dam NH 00048 NHWRB Number 108 05 Connecticut River Basin Hanover 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 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book National Program for Inspection of Non Federal Dams Upper Wilson Pond Dam NH 00202 Connecticut River Basin Swanzey New Hampshire Phase I Inspection Report written by CORPS OF ENGINEERS WALTHAM MA NEW ENGLAND DIV. and published by . This book was released on 1981 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).

Download or read book National Program for Inspection of Non Federal Dams Sunapee Lake Town Dam NH 00108 NHWRB 229 05 Connecticut River Basin Sunapee 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 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a stone masonry dam capped with a concrete slab over the upstream face. The dam is considered to be in good condition. It is intermediate in size with a high hazard potential classification. The extent of damage that might occur at the dam and in downstream areas in the event of overtopping should be assessed. There are various operating and maintenance measures which should be implemented by the owner. (Author).

Download or read book National Program for Inspection of Non Federal Dams Sanborn Pond Outlet Dam NH 00182 NHWRB Number 143 10 Merrimack River Basin Loudon 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 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sanborn Pond Outlet dam is an earthen embankment structure about 265 feet in overall length and a maximum height of 16.5 feet from crest of dam to downstream toe. The upstream and downstream faces consists of a 2 feet thick vertical dry stone masonry wall which extends the full height of the dam. Located about 105 feet from the left abutment is the principal spillway which consists of a 19 feet long spillway structure with vertical dry masonry training walls and flashboards. The dam in considered to be in poor condition with some major concern which must be corrected. It is intermediate in size with a significant hazard potential. Keywords include: Visual inspection, Dam safety, Merrimack River Basin, Louden, New Hampshire, and Sanborn Brook.