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 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:
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 with total page 1468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lower Hudson River Basin Summit Street Lake Dam Columbia County New York Inventory No N Y 847 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 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 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.
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 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 Lower Hudson River Basin Cold Spring Dam Lower Putnam County New York Inventory No N Y 107 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 Lake Peekskill Dam Inventory Number N Y 87 Lower Hudson River Basin Putnam County New York Phase I Inspection Report written by Granville Kester (Jr) and published by . This book was released on 1981 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lake Peekskill Dam is located on an unnamed tributary of Peekskill Hollow Brook and is 2-1/2 miles northeast of Peekskill, New York. Lake Peekskill is used for recreational purposes. The visual inspection revealed several deficiencies in this structure. The following items were noted: Seepage was observed exiting the right downstream buttress near the spillway; Seepage was observed exiting near the downstream left bridge column of the abandoned bridge; Seepage was observed at the right toe of the dam; The far left bridge support has been undermined; Debris was located on the upstream side of the spillway; Debris was located at toe of the spillway discharge area; The outlet works have been sealed and are no longer operable. Trees are located in the discharge channel; and The spillway and dam have minor spalling on its concrete surfaces.
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.
Download or read book Lower Hudson River Basin Vly Creek Dam Albany County New York Inventory No N Y 96 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:
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.
Download or read book Lower Hudson River Basin Sparkle Lake Dam Westchester County New York Inventory No N Y 1330 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 Lower Hudson River Basin Basic Creek Dam Albany County New York Inventory No N Y 84 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:
