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National Dam Safety Program Warner Dam Chautauqua Lake Outlet Inventory Number Ny 750 Allegheny River Basin Chautauqua County New York Phase I Inspection Report
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Book Synopsis National Dam Safety Program. Warner Dam, Chautauqua Lake Outlet (Inventory Number NY 750) Allegheny River Basin, Chautauqua County, New York. Phase I Inspection Report by : Bent L. Thomsen
Download or read book National Dam Safety Program. Warner Dam, Chautauqua Lake Outlet (Inventory Number NY 750) Allegheny River Basin, Chautauqua County, New York. Phase I Inspection Report written by Bent L. Thomsen and published by . This book was released on 1980 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examination of available documents and a visual inspection of the dam did not reveal conditions which constitute an immediate hazard to human life or property. However, the dam has some deficiencies which require further investigation and remedial action. Using the Corps of Engineers screening criteria for review of spillway adequacy, it has been determined that the dam would be overtopped for all storms exceeding approximately 75 percent of the PMF. The spillway is, therefore, considered to be 'inadequate'. A review of the structural stability analysis performed by the designer indicated calculated safety factors against sliding to be less than recommended minimum value. A more detailed analysis which was performed as a part of this Phase I investigation produces a similar conclusion. Therefore, it is recommended that within 6 months of notification to the owner a detailed field investigation and monitoring program be undertaken to determine the actual hydrostatic uplift pressures along the base of the dam and that further detailed structural stability analyses be performed using this information. Debris should be removed from the upstream face of the dam as part of the routine maintenance program. Finally, leakage along the south side of the south tainter gate should be monitored on a daily basis with these observations documented in the dam operator's log book.
Book Synopsis Allegheny River Basin, Warner Dam, Chautauqua Lake Outlet, Chautauqua County, New York, Inventory No. N.Y. 750 by : United States. Army. Corps of Engineers. New York District
Download or read book Allegheny River Basin, Warner Dam, Chautauqua Lake Outlet, Chautauqua County, New York, Inventory No. N.Y. 750 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 Technical Abstract Bulletin written by and published by . This book was released on 1980 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 1981 with total page 1176 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 1981 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis National Dam Safety Program. Conewango Creek Watershed Dam Number 9A (Inventory Number N.Y. 596), Allegheny River Basin, Chautauqua County, New York. Phase I Inspection Report by : Robert J. Farrell
Download or read book National Dam Safety Program. Conewango Creek Watershed Dam Number 9A (Inventory Number N.Y. 596), Allegheny River Basin, Chautauqua County, New York. Phase I Inspection Report written by Robert J. Farrell and published by . This book was released on 1981 with total page 151 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. Examination of available documents and a visual inspection of the dam did not reveal conditions which constitute an immediate hazard to human life and property. However, the dam has some deficiencies which require further investigation and remedial action.
Book Synopsis National Dam Safety Program. Conewango Creek Watershed Project Site 33 (Inventory Number NY 581), Allegheny River Basin, Chautauqua County, New York, Phase 1 Inspection Report by :
Download or read book National Dam Safety Program. Conewango Creek Watershed Project Site 33 (Inventory Number NY 581), Allegheny River Basin, Chautauqua County, New York, Phase 1 Inspection Report written by and published by . This book was released on 1980 with total page 173 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 available engineering documents and visual inspection of the Conewango Creek Watershed Project - Site 33 dam did not disclose conditions which constitute a hazard to downstream human life or property. The total discharge capacity of the combined principal and auxiliary spillways is adequate to impound and safely discharge the floodwater resulting from the Probable Maximum Flood (PMF). A number of minor deficiencies were noted on this structure. These deficiencies include: debris around the trash racks of the orifice in the riser intake structure, debris (logs) on the lower half of the upstream slope as measured from the crest to the normal pool elevation, slight erosion along abutment- embankment contacts on lower third of downstream slope, damaged internal drainage pipes above plunge pool, small animal burrow on downstream slope just above riprap around the principal spillway outlet pipe, wet areas beyond downstream toe in waste area along east side of outlet channel and natural flood plain on the west side of the outlet channel.
Book Synopsis National Dam Safety Program. Panama Dam (Inventory Number NY 784) Allegheny River Basin Chautauqua County. Phase I Inspection Report by : George Koch
Download or read book National Dam Safety Program. Panama Dam (Inventory Number NY 784) Allegheny River Basin Chautauqua County. Phase I Inspection Report written by George Koch and published by . This book was released on 1980 with total page 73 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 Panama Dam did not reveal conditions which constitute an immediate hazard to human life or property. However, the dam has some deficiencies which require additional studies to further evaluate conditions affecting the dam. Using the Corps of Engineers Screening Criteria for the initial review of spillway adequacy, it has been determined that the embankment would be overtopped for all storms in excess of 5% of the PMF (Probable Maximum Flood). This determination has been confirmed by the overtopping of the dam during the September 14, 1979 storm, which resulted in the need for evacuation of Panama Village residents and the closing of NYS Route 474 due to extensive erosion. The spillway is therefore, adjudged as 'seriously inadequate' and the dam is assessed as unsafe, non-emergency. The classification of 'unsafe' applied to a dam because of a 'seriously inadequate' spillway is not meant to connote the same degree of emergency as would be associated with an 'unsafe' classification applied for a structural deficiency.
Book Synopsis National Dam Safety Program. Findley Lake Dam (Inventory Number NY 752), Lake Erie Basin, Chautauqua County, New York. Phase 1 Inspection Report by :
Download or read book National Dam Safety Program. Findley Lake Dam (Inventory Number NY 752), Lake Erie Basin, Chautauqua County, New York. Phase 1 Inspection Report written by and published by . This book was released on 1980 with total page 133 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 the available documents and the visual inspection of the Findley Lake Dam did not reveal conditions which constitute an immediate hazard to human life or property. However, this dam has deficiencies which require further investigation and remedial action. Using the Corps of Engineers screening criteria for review of spillway adequacy, it has been determined that the dam would be overtopped for all storms exceeding approximately 20 percent of the PMF. The overtopping of the dam could cause the erosion of the embankment, especially around the outlet conduit, which would result in dam failure, thus significantly increasing the hazard to the loss of life, especially on the New York State highway which traverses its crest. To a lesser degree, there is also a potential loss of life by overtopping or breaching a downstream village street which is the only other connection between 2 halves of the Village. The spillway is, therefore, adjudged as 'seriously inadequate' and the dam is assessed as unsafe, non-emergency.
Book Synopsis National Dam Safety Program. Smith Mills Reservoir Dam (Inventory Number NY-786), Lake Erie Basin, Chautauqua County, New York. Phase 1 Inspection Report by :
Download or read book National Dam Safety Program. Smith Mills Reservoir Dam (Inventory Number NY-786), Lake Erie Basin, Chautauqua County, New York. Phase 1 Inspection Report written by and published by . This book was released on 1980 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: The examination of documents and visual inspection of Smith Mills Reservoir 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 require investigation and remedial action. These areas are as follows: The spillway is inadequate for all storms in excess of 1% of the PMF (Probable Maximum Flood). The spillway capacity for analysis purposes is 110 cfs before overtopping of the dam would occur. The PMF was calculated to be 25,300 cfs. The dam is overtopped by 7.4 feet during the 1.2 PMF and 12.7 feet during the PMF. The ability of the dam to withstand overtopping and the need to provide additional spillway capacity will have to be evaluated. The design and configuration of the dam is such that only a detailed analysis of the structural stability, which is beyond the scope of this report, will provide sufficient information to determine if overtopping of the dam will be detrimental to the stability of the structure. Therefore, a detailed structural stability investigation is required to determine the type and extent of required remedial measures. This analysis should be initiated as soon as possible with remedial action, as a result of this investigation, completed within the following year.
Book Synopsis National Dam Safety Program. Wiscoy Dam (Inventory Number N.Y. 461), Genesee River Basin, Allegheny County, New York. Phase I Inspection Report by : Robert J. Farrell
Download or read book National Dam Safety Program. Wiscoy Dam (Inventory Number N.Y. 461), Genesee River Basin, Allegheny County, New York. Phase I Inspection Report written by Robert J. Farrell and published by . This book was released on 1981 with total page 114 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. Examination of available documents and a visual inspection of the dam did not reveal conditions which constitute an immediate hazard to human life and property. However, the dam has some deficiencies which require further investigation and remedial action.
Book Synopsis National Dam Safety Program. Davis Brook Dam (Site 1) (Inventory Number N.Y. 564), Allegheny River Basin, Conewango Creek Watershed, Cattaraugus County, New York. Phase I Inspection Report by : Robert J. Farrell
Download or read book National Dam Safety Program. Davis Brook Dam (Site 1) (Inventory Number N.Y. 564), Allegheny River Basin, Conewango Creek Watershed, Cattaraugus County, New York. Phase I Inspection Report written by Robert J. Farrell 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 visual inspection of Conewango Creek Watershed Davis Brook Dam (Site 1) and appurtenant structures did not reveal conditions which constitute a hazard to human life or property. However, the dam has some deficiencies which require further investigation and remedial action. A wet condition of unknown cause was observed on the lower portion of the left downstream slope. It is recommended that the services of a qualified registered professional engineer be retained to evaluate this condition. Using the Corps of Engineers screening criteria for review of spillway adequacy, it has been determined that the dam would not be overtopped under full PMF conditions. The PMF routed through the reservoir required only 46 percent of the spillway outflow capacity. The spillway capacity is therefore judged as adequate. The following remedial measures should be performed within 1 year of notification to owner: develop a formal downstream warning system; develop and maintain a program of periodic technical inspections; implement a program of diligent and periodic maintenance; remove trees and brush from slopes; regrade and fill in the erosion gullies; and install ladder rungs on the riser.
Book Synopsis National Dam Safety Program. Fredonia Reservoir (Inventory Number NY 749), Lake Erie Basin, Chautauqua County, New York. Phase I Inspection Report by : Bent L. Thomsen
Download or read book National Dam Safety Program. Fredonia Reservoir (Inventory Number NY 749), Lake Erie Basin, Chautauqua County, New York. Phase I Inspection Report written by Bent L. Thomsen and published by . This book was released on 1980 with total page 158 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. Examination of available documents and a visual inspection of the dam revealed conditions which if not corrected constitute a hazard to human life or property. Using the Corps of Engineers screening criteria for review of spillway adequacy, it has been determined that the dam would be overtopped by all storms exceeding approximately 34 percent of the PMF. The overtopping of the dam could cause erosion in the notched earthen section adjacent and parallel to the concrete Ogee weir resulting in possible undermining and failure of the spillway. Failure of the spillway would result in an increased hazard to the loss of life and property downstream. The spillway is, therefore, judged as 'seriously inadequate' and the dam is assessed as unsafe, non-emergency.
Book Synopsis National Dam Safety Program. Keuka Lake Outlet Dam (Inventory Number NY 390), Oswego River Basin, Yates County, New York. Phase 1 Inspection Report by :
Download or read book National Dam Safety Program. Keuka Lake Outlet Dam (Inventory Number NY 390), Oswego River Basin, Yates County, New York. Phase 1 Inspection Report written by and published by . This book was released on 1980 with total page 112 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. Examination of available documents and a visual inspection of the dam did not reveal conditions which constitute an immediate hazard to human life or property. Several deficiencies were noted and these should be corrected within 6 months of the date of the final approval of this report. Among the other actions which should be taken are repairing concrete on the post supporting the northern slide gate, filling the small scoured areas behind the sheet pile wall and monitoring the leakage through the masonry wall. In addition, a detailed emergency operation- action plan and warnng system should be developed. The spillways do not have sufficient capacity to discharge the peak outflow from one-half the Probable Maximum Flood (PMF). For this storm event and lesser events, high discharges will cause damage in the channel downstream of the dam. However, dam failure would not significantly increase the hazard to loss of lie downstream from that which would exist just prior to an overtopping-induced failure. Therefore, the spillway is assessed as inadequate.
Book Synopsis National Dam Safety Program. Brocton Reservoir (Inventory Number NY 785), Lake Erie Basin, Chautauqua County, New York. Phase I Inspection Report by :
Download or read book National Dam Safety Program. Brocton Reservoir (Inventory Number NY 785), Lake Erie Basin, Chautauqua County, New York. Phase I Inspection Report written by and published by . This book was released on 1980 with total page 154 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. Examination of available documents and a visual inspection of the dam did not reveal conditions which constitute an immediate hazard to human life or property. However, the dam has some deficiencies which require further investigation and remedial action. Using the Corps of Engineers screening criteria for review of spillway adequacy, it has been determined that the dam would be overtopped for all storms exceeding approximately 52 percent of the PMF. The overtopping of the dam could cause the erosion of the west embankment-spillway contact and downstream face of the west embankment resulting in spillway failure, thus increasing the hazard to the loss of life downstream. The spillway is, therefore, considered to be 'inadequate'. Structural stability analysis based on available information and the visual inspection indicates that the stability of the spillway section against overturning is inadequate for the loading conditions of maximum ice load at normal pool as well as one half and full PMF. A wet area, detected during the visual inspection(s) along the toe of the east embankment could, depending on the source of the wet area, affect the stability of the east embankment.
Book Synopsis National Dam Safety Program. Owasco Lake Outlet Dam Inventory Number (NY 776), Oswego River Basin, Cayuga County, New York. Phase 1 Inspection Report by :
Download or read book National Dam Safety Program. Owasco Lake Outlet Dam Inventory Number (NY 776), Oswego River Basin, Cayuga County, New York. Phase 1 Inspection Report written by and published by . This book was released on 1979 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. Owasco Lake Outlet Dam did not reveal any conditions which pose an immediate threat to life or property. Additional studies are recommended. The dam would be overtopped and become unstable by either the PMF or 1/2 the PMF. However, there would be no significantly increased hazard to loss of life downstream as compared to pre- overtopping failure. Minor deficiencies (joint needing repointing, gullies) are noted.
Book Synopsis National Dam Safety Program. Ischua Creek Watershed Dam Number 2 (Inventory Number N.Y. 560), Allegheny River Basin, Cattaraugus County, New York. Phase I Inspection Report by : Robert J. Farrell
Download or read book National Dam Safety Program. Ischua Creek Watershed Dam Number 2 (Inventory Number N.Y. 560), Allegheny River Basin, Cattaraugus County, New York. Phase I Inspection Report written by Robert J. Farrell and published by . This book was released on 1981 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examination of available documents and visual inspection of Ischua Creek Watershed Dam No. 2 and appurtenant structures did not reveal conditions which constitute a hazard to human life or property. However, the dam has some deficiencies which require further investigation and remedial action. Drainage gullies were observed across the emergency spillway and emanating from the downstream east toe of the embankment. In addition, a bulge or slough was observed in the upper portion of the downstream east slope. It is recommended that these conditions be evaluated further by a qualified registered professional engineer. Using the Corps of Engineers screening criteria for review of spillway adequacy, it has been determined that the dam would not be overtopped under full PMF conditions. The PMF routed through the reservoir required 97 percent of the spillway outflow capacity. The spillway is, therefore, judged to be adequate. The investigations recommended should be completed within 12 months of notification to owner, and remedial actions resulting from these investigations completed in the subsequent 12 months.
