Download or read book National Dam Safety Program Glenham Dam Inventory Number N Y 72 Lower Hudson River Basin Dutchess County New York Phase I Inspection Report written by Granville Kester (Jr) and published by . This book was released on 1981 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examination of available documents and visual inspection of the dam and appurtenant structures did not reveal any conditions which constitute an immediate hazard to human life or property. Using the Corps of engineers' screening criteria, it has been determined that the dam would be overtopped for all storms exceeding 33 percent of the Probable Maximum Flood (PMF). Therefore, the spillway is adjudged as 'seriously inadequate' and the dam is assessed as 'unsafe, non-emergency.' Structural stability analyses based on available information, indicate that factors of safety against overturning are generally low, and the locations of the resultants fall outside of the middle 1/3. The factor of safety against sliding was less than the recommended value of 3 for Cases 3 and 4. Therefore, when the dam is subjected to severe loading conditions such as a 1/2 PMF of PMF event, the factors of safety fall to below critical levels.
Download or read book Lower Hudson River Basin Glenham Dam Dutchess County New York Inventory No N Y 72 written by United States. Army. Corps of Engineers. New York District and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1981 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1982-02 with total page 1096 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Safety Program Melzingah Reservoir Dam Inventory Number NY 032 Lower Hudson River Basin Dutchess County New York Phase I Inspection Report written by Granville Kester (Jr) and published by . This book was released on 1981 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Melzingah Reservoir Dam on Gordons Brook, a tributary of the Hudson River, is 2 miles south of Beacon, New York. Melzingah Reservoir is one of three reservoirs used as a water supply for the City of Beacon, New York. Visual inspection revealed several deficiencies in this structure. The following items were noted: There are two large seeps at the base of the spillway; Water was flowing (3-5 gpm) from beneath the spillway; Five minor seeps were found 3 to 7 feet above the toe of the dam between the spillway and left abutment; Trees and brush are growing along the toe of the dam; There are small trees growing in the discharge channel; The gunite surface of the dam is deteriorating and is cracked over the entire upstream and downstream faces; An irregularity or 'bump' in the gunite surface was observed on the downstream face of the dam, approximately 200 feet from the left abutment; The junction of the 24-inch pipe and the 12-inch water supply line is leaking, and A construction joint has deteriorated on the upstream crest of the dam approximately 75 feet from the left abutment, creating a void approximately 4 inches deep, 2 feet long, and 2 feet wide.
Download or read book Government Reports Annual Index written by and published by . This book was released on 1982 with total page 1008 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 Government Reports Annual Index Keyword A L written by and published by . This book was released on 1982 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Safety Program Mt Beacon Reservoir Inventory Number NY 26 Hudson River Basin Dutchess County New York Phase I Inspection Report written by and published by . This book was released on 1980 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides information and analysis on the physical condition of the dam as of the report date. Information and analysis are based on visual inspection of the dam by the performing organization.
Download or read book National Dam Safety Program Morgan Lake Dam Inventory Number NY 787 Hudson River Basin Dutchess County New York Phase I Inspection Reprot written by Eugene O'Brien and published by . This book was released on 1980 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides information and analysis on the physical condition of the dam as of the report date. Information and analysis are based on visual inspection of the dam by the performing organization.
Download or read book National Dam Safety Program Honk Falls Dam Inventory Number N Y 73 Lower Hudson River Basin Ulster County New York Phase I Inspection Report written by Granville Kester (Jr) and published by . This book was released on 1981 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Honk Falls Dam is located on Rondout Creek, a tributary of the Hudson River, 3 miles north of Ellenville, New York. Honk Lake is used for recreation. Visual inspection revealed several deficiencies in the structure. The following items were noted: The right wing wall has seepage at the soil-concrete contact along most of its length; The wooden gates on the 6-foot diameter outlet pipes have water running down their face; The mechanical equipment for the lift gates is inoperative; The lift arm for the left gate on the 6-foot diameter outlet pipe is missing; The left wingwall has seepage at the junction with the main structure of the dam; There is seepage through the dam on the downstream face below the auxiliary spillways; The junction of the concrete and rock at the toe of the dam is eroded; The construction joints in the dam are badly eroded; and The entire concrete surface of the dam is spalled and deteriorated.
Download or read book National Dam Safety Program Churchtown Dam Inventory Number NY 79 Lower Hudson River Basin Columbia County New York Phase I Inspection Report written by George Koch and published by . This book was released on 1981 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Visual inspection of this dam and engineering analyses which have been performed revealed that several serious deficiencies exist with this structure. Structural stability analyses, based on available information, indicate that this dam is marginally stable under normal loading conditions and is unstable when subjected to severe loading conditions (such as flood flows or ice loading). Seepage noted under and through the structure, creating wet, soft areas along the downstream toe along both ends of the dam, adversely affect the stability of the structure. Immediately upon receipt of this notification, a system for providing around-the-clock surveillance of the dam during periods of unusually heavy precipitation should be developed and implemented. An emergency action plan for the notification of downstream residents should also be developed. It is recommended that within 3 months of the data of notification of the owner, investigations into the deficiencies on this structure should be commenced. Studies of the structural stability and seepage problems, including subsurface and structural explorations are necessary. Information obtained should be incorporated into a detailed stability evaluation.
Download or read book National Dam Safety Program Lake Mahopac Dam Inventory Number NY 1329 Lower Hudson River Basin Putnam County New York Phase I Inspection Report written by Eugene O'Brien and published by . This book was released on 1981 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: The examination of documents and the visual inspection of Lake Mahopac Dam and its appurtenant structures did not reveal conditions which constitute an immediate hazard to human life and property. Using Corps of Engineers screening criteria, it has been determined that the dam would be overtopped for all storms exceeding approximately 56 percent of Probable Maximum Flood (PMF). The maximum spillway discharge capacity is 7.9 percent of the PMF peak outflow. The spillway is, therefore, adjudged as 'inadequate'. The following remedial measures should be performed within 12 months from notification: (1) Missing portions of the upstream stone masonry wall should be repaired. (2) Brush and shrubbery should be removed from the embankment, spillway-reservoir drain structure and downstream channel. Provide a program of periodic cutting and or mowing of the dam surfaces, spillway-reservoir drain structure and the downstream channel. (3) The collected debris at the spillway-reservoir drain structure and in the downstream channel should be removed and hauled away from the dam. (4) A program of periodic inspections and maintenance of the dam and appurtenances should be provided, including yearly operation and lubrication of the reservoir drain and its control facilities. This information should be documented for future reference. (5) An emergency action plan for the project should be developed.
Download or read book National Dam Safety Program Cold Spring Dam Lower Inventory Number NY 107 Lower Hudson River Basin Putnam County New York Phase I Inspection Report written by George Koch and published by . This book was released on 1981 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides information and analysis on the physical condition of the dam as on the report date. Information and analysis are based on visual inspection of the dam by the performing organization. Visual inspection of this dam did not reveal conditions which constitute an immediate hazard to human life or property. However, the dam has some deficiencies which require further engineering investigations.
Download or read book Hudson River Basin Morgan Lake Dutchess County New York Inventory No N Y 787 written by United States. Army. Corps of Engineers. New York District and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Safety Program Goshen Reservoir Number 1 Dam Inventory Number N Y 488 Lower Hudson River Basin Orange County New York Phase I Inspection Report written by George Koch and published by . This book was released on 1981 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides information and analysis on the physical condition of the dam as of the report date. Information and analysis are based on visual inspection of the dam by the performing organization. The examination of documents and the visual inspection of the Goshen Reservoir did not reveal conditions which constitute an immediate hazard to human life or property. However, the dam has some problem areas which require additional studies and remedial work. The most serious of these deficiencies are the two areas of seepage on the downstream slope of the dam. First is at the end of a grouted stone spillway channel and the second is at the toe in the center of the dam. It is recommended that within six months from notification, an engineering investigation is initiated to determine the sources of the seepage found. Using the Corps of Engineers' screening criteria for the initial review of spillway adequacy, it has been determined that the embankment would be overtopped by all storms in excess of 51% of the Probable Maximum Flood (PMF). Therefore, the spillway is adjudged as 'inadequate.' (Author).
Download or read book Lower Hudson River Basin Greenhaven Correction Facility Dam Dutchess County New York Inventory No N Y 1170 written by United States. Army. Corps of Engineers. New York District and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Safety Program Martin Dunham Reservoir Dam Inventory Number NY 672 Lower Hudson River Basin Rensselaer County New York Phase I Inspection Report written by George Koch and published by . This book was released on 1981 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examination of available documents and a visual inspection of this dam did not reveal conditions which constitute an immediate hazard to human life or property. However, the dam has some deficiencies which need to be evaluated and remedied. The most serious deficiency noted was a large wet area near the right abutment contact at the downstream toe of the main embankment. The ground in this area was very soft and there was minor sloughing of the embankment slope, as well. Two smaller wet areas were also observed. One of these was near the downstream toe at the left end of the main embankment and the other was beyond the toe of the spillway dike. Investigations into the causes and possible treatments of these wet areas should be commenced within 3 months of the date of notification of the owner. Remedial measures on these areas should be completed within 12 months. The hydrologic/hydraulic analysis performed indicates that the spillway does not have sufficient capacity to discharge the peak outflow from one-half the Probable Maximum Flood (PMF). However, spillway discharges occurring during large storm events will cause water surface elevations in the downstream hazard area to rise to flood levels. A dam failure resulting from overtopping would not significantly increase the hazard to loss of life from that which would exist just prior to an overtopping failure. Therefore, the spillway is assessed as inadequate.
