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National Dam Safety Program Bronx River Dam Inventory Number Ny 1500 Lower Hudson River Basin Bronx County New York Phase I Inspection Report
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Book Synopsis National Dam Safety Program. Bronx River Dam (Inventory Number NY 1500), Lower Hudson River Basin, Bronx County, New York. Phase I Inspection Report by : Granville Kester (Jr)
Download or read book National Dam Safety Program. Bronx River Dam (Inventory Number NY 1500), Lower Hudson River Basin, Bronx County, New York. Phase I Inspection Report written by Granville Kester (Jr) and published by . This book was released on 1981 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bronx River Dam is a stone and mortar structure 17.7 feet high and 121.5 feet long. The right section of the dam has a crest width of about 5.5 feet, an upstream slope of 1H:5.9V (Horizontal to Vertical), and a downstream slope of 1H:4.9V. The spillway is a broad-crested, concrete weir with a breadth of 4 feet parallel to the flow. The spillway starts 32 feet from the right abutment and extends 89.5 feet to the stone wall on the left abutment. A 3-foot diameter iron pipe acts as the outlet for the dam. The valve that controls the flow through this pipe is located on a 7-foot wide masonry deck, 16 fee upstream from the right side of the dam. Examination of available documents and a 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 approximately 10 percent of the Probable Maximum Flood (PMF). Therefore, the spillway is adjudged as seriously inadequate, and the dam is assessed as unsafe, non-emergency.
Book Synopsis Lower Hudson River Basin, Bronx River Dam, Bronx County, New York, Inventory No. N.Y. 1500 by : United States. Army. Corps of Engineers. New York District
Download or read book Lower Hudson River Basin, Bronx River Dam, Bronx County, New York, Inventory No. N.Y. 1500 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 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1982 with total page 1220 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.
Book Synopsis National Dam Safety Program. Churchtown Dam (Inventory Number NY. 79), Lower Hudson River Basin, Columbia County, New York. Phase I Inspection Report by : George Koch
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.
Book Synopsis National Dam Safety Program. Vly Creek Dam, Inventory Number NY 96, Lower Hudson River Basin, Albany County, New York. Phase 1 Inspection Report by : George Koch
Download or read book National Dam Safety Program. Vly Creek Dam, Inventory Number NY 96, Lower Hudson River Basin, Albany County, New York. Phase 1 Inspection Report written by George Koch and published by . This book was released on 1978 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Vly Creek Dam is composed of a 24.5 feet high and 338 feet long earth embankment dam with spillway, and a 39.5 feet high and 1720 feet long earth embankment dike with control tower for water supply regulation. Visual inspection did not reveal conditions that are considered to be unsafe. The total discharge capacity of the spillway is adequate to pass half the Probable Maximum Flood (PMF) regardless of the flashboards. The spillway is also capable of discharging PMF without flashboards, but not with flashboards.
Book Synopsis Lower Hudson River Basin, Churchtown Dam, Columbia County, New York, Inventory No. N.Y. 79 by : United States. Army. Corps of Engineers. New York District
Download or read book Lower Hudson River Basin, Churchtown Dam, Columbia County, New York, Inventory No. N.Y. 79 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:
Book Synopsis National Dam Safety Program. Lake Mahopac Dam (Inventory Number NY 1329) Lower Hudson River Basin, Putnam County, New York. Phase I Inspection Report by : Eugene O'Brien
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.
Book Synopsis National Dam Safety Program. Melzingah Reservoir Dam (Inventory Number NY 032), Lower Hudson River Basin, Dutchess County, New York. Phase I Inspection Report by : Granville Kester (Jr)
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.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1982 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis National Dam Safety Program. Basic Creek Dam (Inventory Number N.Y. 84), Lower Hudson River Basin, Albany County, New York. Phase I Inspection Report by : George Koch
Download or read book National Dam Safety Program. Basic Creek Dam (Inventory Number N.Y. 84), Lower Hudson River Basin, Albany County, New York. Phase I Inspection Report written by George Koch and published by . This book was released on 1981 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: The examination of documents and visual inspection of Basic Creek Dam and appurtenant structures did not reveal conditions which constitute a hazard to human life or property. The discharge capacity of the spillway is inadequate for all storms in excess of 52% of the PMF (Probable Maximum Flood). During the 1/2 PMF event the water surface will approximate the top of dam elevation and the outflow will be 6801 cfs. The spillway is, therefore, assessed as 'inadequate'. The following problem areas were observed which require remedial action within 1 year of notification to the owner: Repair the areas of deteriorated concrete which are leaking (approx. 50 gpm) between the 24 inch and 48 inch valves within the intake chamber; Repair the deteriorated concrete and control the seepage within the diversion tunnel; Monitor the seepage within the intake chamber, particularly above the 12 inch valve, and repair as required; Repair the voids in the concrete spillway apron; Monitor the seepage from the horizontal joints of the spillway; Periodically monitor the concrete deterioration of the dam and appurtenances; Periodically remove the debris in the downstream channel; Remove the trees and brush on the slopes, crest and abutments of the embankments.
Book Synopsis Bronx River Basin, Kensico Dam, Westchester County, New York, Inventory No. 51 by : United States. Army. Corps of Engineers. New York District
Download or read book Bronx River Basin, Kensico Dam, Westchester County, New York, Inventory No. 51 written by United States. Army. Corps of Engineers. New York District and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Lower Hudson River Basin, Watervliet Upper Dam, Albany County, New York, Inventory No. N.Y. 1356 by : United States. Army. Corps of Engineers. New York District
Download or read book Lower Hudson River Basin, Watervliet Upper Dam, Albany County, New York, Inventory No. N.Y. 1356 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:
Book Synopsis National Dam Safety Program. Clarks Mills Dam, (Inventory Number NY 120) Upper Hudson River Basin, Washington County, New York. Phase I Inspection Report by : John B. Stetson
Download or read book National Dam Safety Program. Clarks Mills Dam, (Inventory Number NY 120) Upper Hudson River Basin, Washington County, New York. Phase I Inspection Report written by John B. Stetson and published by . This book was released on 1980 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: The examination of documents and visual inspection of the dam and appurtenant structures did not reveal conditions which constitute an immediate hazard to human life or property. The dam, however, has a number of problem areas which should be investigated, evaluated, and remedied. The following remedial measures should be undertaken within one year: (1) Eliminate leakage into the interior core of the dam and repair deteriorated concrete on the north abutment and at the pier separating the two sections of the dam; (2) A formalized inspection program should be initiated to develop data on conditions and maintenance operations at the facility; and (3) A flood warning and emergency evacuation plan should be developed and implemented to alert the public in the event conditions occur which could result in failure of the dam.
Book Synopsis National Dam Safety Program. Congers Lake Dam (Inventory Number NY 972), Passaic River Basin, Lower Hudson River Area, Rockland County, New York. Phase I Inspection Report by : Granville Kester (Jr)
Download or read book National Dam Safety Program. Congers Lake Dam (Inventory Number NY 972), Passaic River Basin, Lower Hudson River Area, Rockland County, New York. Phase I Inspection Report written by Granville Kester (Jr) and published by . This book was released on 1981 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examination of available documents and a visual inspection of the dam and appurtenant structures did not reveal conditions which constitute an immediate hazard to human life or property. It has been determined that the dam would be overtopped for all storms exceeding approximately 23 percent of the Probable Maximum Flood (PMF). Therefore, the spillway is adjudged 'seriously inadequate', and the dam is assessed as unsafe, non-emergency. It is recommended that, within three months of owner notification, detailed hydrologic and hydraulic investigations of the structure should be undertaken to more accurately determine the site-specific characteristics of the watershed and their effects upon the overtopping potential of the dam. The results of this investigation and analyses will determine the appropriate remedial measures required to achieve a spillway capacity adequate to discharge the outflow from at least the 1/2 PMF. In the interim, a detailed emergency action plan must be developed and implemented during periods of unusually heavy precipitation. Also, around-the-clock surveillance must be provided during these periods.
Book Synopsis Lower Hudson River Basin, Alcove Dam, Albany County, New York, Inventory Number NY 93 by : United States. Army. Corps of Engineers. New York District
Download or read book Lower Hudson River Basin, Alcove Dam, Albany County, New York, Inventory Number NY 93 written by United States. Army. Corps of Engineers. New York District and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis National Dam Safety Program. Kensico Dam (Inventory Number NY51), Bronx River Basin, Westchester County, New York. Phase I Inspection Report by : Clark H. Benn
Download or read book National Dam Safety Program. Kensico Dam (Inventory Number NY51), Bronx River Basin, Westchester County, New York. Phase I Inspection Report written by Clark H. Benn and published by . This book was released on 1978 with total page 75 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 Kensico Dam is maintained in excellent operational condition by the City of New York Personnel. The dam, spillway and pertinent works exhibit no evidence of distress and is stable for all anticipated conditions. Kensico Reservoir is unique in that the major source of inflow, and regulation of discharge and impoundment, are a function of the aqueduct system rather than the contributing watershed area; which is relatively small. As such it has been determined that the Kensico Dam spillway can safely discharge the probable maximum flood. (Author).
