Download or read book National Dam Safety Program Koppers Petrolia Plant Number 3 Reservoir Dam NDI Number PA 00902 PennDer Number 10 74 Ohio River Basin Unnamed Tributary South Branch of Bear Creek Butler County Pennsylvania Phase I Inspection Report written by BAKER (MICHAEL) JR INC BEAVER PA. and published by . This book was released on 1979 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: Koppers Petrolia Plant - No. 3 Reservoir Dam is a zoned, earthfill dam owned and operated by the Koppers Company, Inc. The dam has a crest length of 710 feet, a maximum height of 59 feet, and a maximum storage capacity of 278 acre-feet. The dam is classified as a 'High' hazard - 'Intermediate' size dam. Hydraulic/Hydrologic evaluations, performed in accordance with procedures established by the Baltimore District, Corps of Engineers, for Phase I Inspection Reports, revealed that the spillways will pass the Probable Maximum Flood (PMF) without overtopping the dam. The spillway is therefore considered 'adequate'. The dam was found to be in fair overall condition at the time of inspection. Several items of remedial work should be performed by the owner without delay.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1980 with total page 216 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 1980 with total page 1058 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 1120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Safety Program Unnamed Tributary to Harmon Creek NDI Number PA 01123 PennDER Number 63 81 SCS Number PA 485 Ohio River Basin Washington County Pennsylvania Phase I Inspection Report written by John A. Dziubek and published by . This book was released on 1980 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: PA 485 is a zoned earthfill embankment with a total length of 630 feet, including the emergency spillway on the left abutment. The height and crest width of the embankment are 78 feet and 14 feet, respectively. The embankment was constructed using three zones of fill material. The principal spillway is a drop-inlet structure consisting of a two stage reinforced concrete riser connected to a 30 inch diameter reinforced concrete outlet pipe. The emergency spillway for the dam is located at the left abutment. It consists of a vegetated trapezoidal channel with a bottom width of 50 feet and 2H:1V side slopes. Hydrologic/hydraulic evaluations revealed that the spillway will pass the Probable Maximum Flood (PMF) without overtopping the dam. A spillway design flood (SDF) equal to the PMF is required for PA 485. The spillway is therefore considered to be 'adequate'. The visual inspection revealed several minor deficiencies which require remedial action by the owners of the dam.
Download or read book National Dam Safety Program Siegel Marsh Dam NDI Number PA 00015 PennDER Number 25 14 Ohio River Basin East Branch LeBoeuf Creek Erie County Pennsylvania Phase I Inspection Report written by John A. Dziubek and published by . This book was released on 1980 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: Siegel Marsh Dam was originally constructed as a 9 foot high earth embankment with a single concrete spillway 136 feet long. At a later date, the embankment was raised 1.5 feet, the spillway was raised 3.5 feet, and an additional spillway with a length of 126 feet was added. The impoundment is situated in State Game Lands No. 218 and is used for wildlife propagation. The embankment currently consists of three sections separated by two spillway structures. The spillway currently consists of two trapezoidal shaped, broad-crested concrete weirs separated by an earth embankment. A minimum flow of at least 1.71 c.f.s. out of the reservoir is maintained by a set of stop logs on the left side of the right spillway. All of the stop logs can be removed to drain the reservoir. Hydraulic/hydrologic evaluations revealed that the spillway will pass the 1/2 Probable Maximum Flood (1/2 PMF) without overtopping the dam. A spillway design flood (SDF) in the range of the 1/2 PMF to Probable Maximum Flood (PMF) is required for Siegel Marsh Dam. The 1/2 PMF was chosen as the SDF because the dam is on the low side of the 'Intermediate' size category due to the low height of the embankment. The spillways are therefore considered 'adequate'. The inspection revealed certain items of remedial work which should be performed immediately by the owner.
Download or read book National Dam Safety Program Upper and Lower Dams NDI Number PA 00389 PennDER Number 20 55 SCS Numbers PA 487A and B Ohio River Basin Crooked Creek Crawford County Pennsylvania Phase I Inspection Report written by BAKER (MICHAEL) JR INC BEAVER PA. and published by . This book was released on 1980 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Upper and Lower Dams consist of two dams in series designed by the U.S. Department of Agriculture, Soil Conservation Service (SCS) for floodwater detention and waterfowl habitat enhancement. Lower Dam is the primary structure upon which this report focuses because the majority of Upper Dam becomes inundated by backwater from Lower Dam before the emergency spillways at Lower Dam are activated. Hydraulic/hydrologic evaluations revealed that the spillways will pass the Probable Maximum Flood (PMF) without overtopping Lower Dam. A spillway design flood (SDF) equal to the PMF is required for Lower Dam. Therefore, the spillways are considered 'adequate.' The inspection revealed only one deficiency which should be corrected immediately, namely, the repair of the chipped concrete on the impact basin of Upper Dam.
Download or read book National Dam Safety Program Ward Run NDI Number PA 01124 PennDER Number 63 75 SCS Number PA 483 Ohio River Basin Washington County Pennsylvania Phase I Inspection Report written by John A. Dziubek and published by . This book was released on 1980 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: PA 483 is a 74-foot high, zoned-earthfill floodwater retarding dam designed by the U.S. Department of Agriculture, Soil Conservation Service (SCS). The dam is owned and operated by the Washington County Commissioners. The dam consists of a 360 foot long embankment, a vegetated earth side channel emergency spillway, and an intake riser and outlet conduit (principal spillway). The dam and appurtenant structures were found to be in good overall condition at the time of the inspection. Hydraulic/hydrologic evaluations revealed that the spillway will pass the Probable Maximum Flood (PMF) without overtopping the dam. PA 483 is a 'High' hazard, 'Intermediate' size dam requiring evaluation for a spillway design flood (SDF) equal to the PMF. Therefore, the spillway is assessed as 'adequate.' The inspection revealed certain items of remedial work which should be performed immediately by the owner.
Download or read book National Dam Safety Program H B Norton Dam PA No Name No 42 NDI PA 00385 PennDer No 24 35 Ohio River Basin Big Mill Creek Elk County Pennsylvania Phase I Inspection Report written by C. Y. Chen and published by . This book was released on 1979 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: The H.B. Norton Dam consists of an earthfill embankment approximately 37 feet high and 675 feet long. A 75-foot wide, concrete ogee spillway is located at the right abutment, and a 150-foot wide emergency spillway is located at the left abutment. Seepage control is provided by a steel core wall comprised of 72-inch by 96-inch by 1/4-inch steel sheets, which are riveted and welded in place. The downstream embankment rises at a slope of 2 horizontal to 1 vertical (2H:1V) to the crest at elevation 1422.4 feet. The upstream slopes rise at 2.5H:1V to elevation 1412 feet and then 2H:1V to the 12-foot wide crest. The upstream face is lined with well-placed sandstone riprap, typically 1- to 2-foot square. The ogee type spillway has a crest elevation of 1415 feet, or 7 feet lower than the top of dam. Approximately 225 feet to the left of the ogee spillway is a concrete screen chamber built into the embankment. The intake consists of two pipes, a 16-inch cast-iron pipe with an invert elevation of 1400 feet and a 36-inch cast-iron pipe with an invert at elevation 1386.0 feet.
Download or read book National Dam Safety Program Treated Water Pond NDI Number PA 01138 PennDER Number 63 91 Ohio River Basin Sawmill Creek Washington County Pennsylvania Phase I Inspection Report written by ACKENHEIL AND ASSOCIATES INC PITTSBURGH PA. and published by . This book was released on 1980 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: The general condition of the Treated Water Pond is considered to be fair. This assessment is based primarily on visual observations of embankment conditions and lack of information on the structural capacity of conduits through the embankment. The structure is classified as an 'intermediate' size, 'high' hazard dam. Corps of Engineers guidelines recommend the Probable Maximum Flood (PMF) as the Spillway Design Flood for an 'intermediate' size, 'high' hazard dam. The Treated Water Pond's Spillway Design Flood is the Probable Maximum Flood. Spillway capacity is 'adequate' because the non-overtopping flood discharge was found, by using the HEC-1 computer program, to be in excess of 100 percent of the PMF. The visual inspection indicates several minor deficiencies in addition to those requiring further investigation. The deficiencies can be corrected or improved through implementation of the following recommended evaluation, remedial, monitoring and/or maintenance efforts.
Download or read book National Dam Safety Program Ethel Springs Dam NDI Number PA 01121 PennDER Number 65 13 Ohio River Basin Westmoreland County Pennsylvania Phase I Inspection Report written by BAKER (MICHAEL) JR INC BEAVER PA. and published by . This book was released on 1980 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ethel Springs Dam is owned and operated by the Borough of Derry Municipal Water Authority. The dam is classified as a 'High' hazard - 'Intermediate' size dam. The dam was found to be in poor overall condition at the time of inspection. Hydraulic/hydrologic evaluations, performed in accordance with procedures established by the Baltimore District, Corps of Engineers, for Phase I Inspection Reports, revealed that the spillway will pass approximately 40 percent of the Probable Maximum Flood (PMF) before overtopping will occur. A spillway design flood (SDF) equal to the PMF is required for Ethel Springs Dam. Additional analyses were performed to assess whether or not the dam would fail under 1/2 Probable Maximum Flood (1/2 PMF) conditions. Since the duration and depth of overtopping under the 1/2 PMF (6.0 hours and 0.28 feet, respectively) do not exceed the limiting criteria assumed for failure of the dam (8.0 hours and 1 foot), it has been estimated that failure of the dam under 1/2 PMF conditions is not likely. The spillway is therefore considered 'inadequate' but not 'seriously inadequate.' The owner should immediately initiate an engineering study to further evaluate the spillway capacity and to develop recommendations for remedial measures to reduce the overtopping potential of the dam. The possibility of movement of the upstream slope and the uncertainties of construction of the dike and downstream slope are causes for concern for the continued stability and safety of this dam. It is recommended that a detailed overall investigation of this dam be performed.
Download or read book National Dam Safety Program Dinsmore Storage Number 2 Dam NDI Number PA 00497 PennDER Number 63 20 Ohio River Basin Harmon Creek Washington County Commonwealth of Pennsylvania written by John A. Dziubek and published by . This book was released on 1980 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is prepared under guidance contained in the 'Recommended Guidelines for Safety Inspection of Dams, ' for Phase I Investigations. The purpose of a Phase I Investigation is to identify expeditiously those dams which may pose hazards to human life or property. The assessment of the general condition of the dam is based upon available data and visual inspections. Detailed investigation, and analyses involving topographic mapping, subsurface investigations, testing, and detailed computational evaluations are beyond the scope of a Phase I Investigation; however, the investigation is intended to identify any need for such studies.
Download or read book National Dam Safety Program Kahle Lake Dam NDI Number PA 00825 Penn DER Number 61 20 Ohio River Basin Mill Creek Venango County Pennsylvania Phase I Inspection Report written by Chuan Yuan Chen and published by . This book was released on 1979 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kahle Lake Dam is a zoned, earthfill embankment with a maximum height of 45 feet and a total length between abutments of 1300 feet. The embankment has a crest width of 19 feet and side slopes of 3H:1V (Horizontal to Vertical) upstream and 2.5H:1V downstream. The upper 10 feet of the upstream slope is provided with 18 inch thick riprap for wave and ice protection. The auxiliary spillway, located in the left abutment, consists of a concrete weir, a concrete chute, and a stilling basin. The weir has an overall length of 81 feet with the crest elevation 6 feet below the top of dam. Flow over the weir discharges into a reinforced concrete chute. The chute width varies from 81 feet at the weir to 60 feet at the stilling basin. The bottom of the chute has a slope of 5H:1V and an overall length of 144.33 feet. Reinforced concrete training walls are provided from the weir to the end of the stilling basin.
Download or read book National Dam Inspection Program Cokeburg Water Supply Dam NDI ID Number PA 1094 DER ID Number 63 30 Borough of Cokeburg Ohio River Basin Tributary South Branch Pigeon Creek Washington County Pennsylvania Phase I Inspection Report written by KIMBALL (L ROBERT) AND ASSOCIATES EBENSBURG PA. and published by . This book was released on 1981 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: The inspection and review of data of the Cokeburg Water Supply Dam revealed that further investigations of the magnitude of a Phase II are required. The inspection did not reveal any problems which require immediate emergency action. The dam appears to be in poor condition and poorly maintained. The structure is classified an unsafe, non-emergency. The stability of the structure is questionable due to the existence of coke ovens in the downstream slope of the embankment and failure of the discharge culvert outlet. Considerable erosion and/or settlement has occurred near the outlet of the spillway discharge culvert. The interior walls of the culvert, at the outlet are caving in and debris partially blocks the outlet. Portions of the reservoir slopes may contain coal refuse, which could lead to potential landslides affecting the storage and volume of the reservoir. During periods of heavy precipitation a potential landslide could occur, increasing the possibility for overtopping of the structure. The Cokeburg Water Supply Dam is a high hazard-small size dam. The Spillway Design Flood (SDF) for a dam of this size and classification is in the range of 1/2 PMF to the PMF. The PMF has been selected as the spillway design flood based on the downstream potential for loss of life and property damage.
Download or read book National Dam Safety Program Ryerson Station State Park Dam NDIID PA 193 DERID 30 20 Ohio River Basin North Fork of Wheeling Creek Greene County Pennsylvania Phase I Inspection Report written by Lawrence D. Anderson and published by . This book was released on 1979 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ryerson Station State Park Dam is a 515-foot-long concrete gravity structure. A 200-foot-long ogee section near the right abutment (looking downstream) is the combined primary and emergency spillway of the dam. The maximum height of the dam is about 30 feet for the spillway and 42 feet for the nonoverflow section measured from the downstream toe. The width of the dam varies from a minimum of 6 feet at the crest of the nonoverflow section to about 30 feet at the base of the dam. The outlet works for the dam consist of a 36-inch-diameter conduit through the dam left of the spillway. Flow through the outlet conduit is controlled by a manually operated sluice gate located at the upstream end. The outlet works constitute the emergency drawdown facility for the reservoir. The dam is located in Ryerson Station State Park approximately one mile upstream from the town of Ryerson Station in Richville Township, Greene County, Pennsylvania.
Download or read book National Dam Safety Program Parker Dam NDI Number PA 01126 PennDER Number 17 87 Susquehanna River Basin Laurel Run Clearfield County Pennsylvania Phase I Inspection Report written by John A. Dziubek and published by . This book was released on 1980 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parker Dam is classified as a 'Significant' hazard - 'Small' size dam. The dam and reservoir, owned by the Commonwealth of Pennsylvania, Department of Environmental Resources, are used for recreational purposes. The dam and appurtenant structures were found to be in good overall condition at the time of the inspection. A spillway design flood (SDF) in the range of the 100-year flood to the 1/2 Probable Maximum Flood (1/2 PMF) is required for Parker Dam. Since the dam is in the middle of the 'Small' size category according to storage capacity, the 1/2 PMF was selected as the SDF. Hydrologic/hydraulic evaluations, performed in accordance with procedures established by the Baltimore District of the U.S. Army Corps of Engineers, revealed that the available spillway capacity is much greater than the maximum flow expected during the SDF. Therefore, the dam will not be overtopped during the SDF and the spillways are considered to be 'adequate'.
Download or read book National Dam Safety Program West Leechburg Reservoir Dam NDI PA 452 Ohio River Basin West Penn Run Westmoreland County Pennsylvania written by GAI CONSULTANTS INC MONROEVILLE PA. and published by . This book was released on 1978 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: West Leechburg Reservoir Dam is an earth embankment approximately 406 feet long reaching a maximum height of about 60 feet near the center of the embankment. The structure is provided with a cutoff trench, excavated to rock, as well as a concrete cutoff wall extending two feet into rock and extending five feet above the rock surface. The visual inspection, records of past performance, and hydologic and hydraulic analysis indicate that the facility is in fair condition and in need of remedial repair and further engineering evaluation. Hydrologic and hydraulic calculations indicate that the facility is capable of passing and/or storing 43% of the runoff associated with a storm of PMF intensity without overtopping the spillway wingwalls. Based on screening criteria estabished by the Dept. of the Army, Office of Chief of Engineers, the spillway, in its present configuration, is considered seriously inadequate. Seepage flow was observed in the lower portion of the embankment behind the treatment plant.
