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 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 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 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 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 Goose Pond Dam NH 00118 NHWRB 36 01 Connecticut River Basin Canaan 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 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is a 1240 ft. long earthfill dam. The maximum height of the dam is 31 ft. The dam is judged to be in fair condition. It is intermediate in size with a high hazard potential classification. The slope on the upstream slope east of the spillway should be re-established. The exposed concrete surface of the core wall should be repaired. (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 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 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 Millen Lake Dam NH 00236 NHWRB Number 245 04 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 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).

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 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 Silver Lake Dam NH 00062 NHWRB Number 109 01 Connecticut River Basin Harrisville 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 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).

Download or read book National Program for Inspection of Non Federal Dams Ashuelot Pond Dam NH 00237 NHWRB Number 245 05 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 1979 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is an earthen dam and stone structure about 190 ft. long with a maximum height of 13 ft. The dam is in fair condition. The inspection revealed seepage near the outlet works and near the right abutment. It is intermediate in size with a significant hazard classification. (Author).

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 Spofford Lake Dam NH 00356 NHWRB 45 08 Connecticut River Basin Chesterfield 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 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).