Download or read book National Dam Inspection Program Renton Slurry Pond 3 NDI Number PA 00838 Penn DER Number 2 50 Ohio River Basin Tributary to Little Plum Creek Allegheny County Pennsylvania Phase I Inspection Report written by and published by . This book was released on 1981 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a review of available information, visual observations of conditions as they existed on the date of the field inspections, and supporting engineering calculations, the general condition of the Pond 3 is considered to be fair. This assessment is based primarily on visual observations of embankment, spillway and seepage conditions and hydrology/hydraulic analyses of reservoir/spillway capacity. The structure is classified as a 'small' size, 'high' hazard dam. Corps of Engineers guidelines recommend 0.5 to one times the Probable Maximum Flood (PMF) as the Spillway Design Flood for a 'small' size, 'high' hazard dam. The Pond 3's Spillway Design Flood is the Probable Maximum Flood because of its height. Spillway capacity is 'inadequate' because the nonovertopping flood discharge was found, by using the HEC-1 computer program, to be 35 percent of the PMF. At 0.5 PMF, the embankment overtopping depth and duration would be 0.58 feet and eight hours and 40 minutes respectively. In the opinion of the evaluating engineer, this overtopping depth and duration would not cause a catastrophic failure of the embankment.

Download or read book OHIO RIVER BASIN TRIBUTARY TO LITTLE PLUM CREEK ALLEGHENY COUNTY PENNSYLVANIA written by United States. Army. Corps of Engineers. Baltimore 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 Inspection Program Russellton Slurry Pond 3 NDI Number PA 00839 Penn DER Number 2 52 Ohio River Basin Tributary to Little Deer Creek Allegheny County Pennsylvania Phase I Inspection Report written by and published by . This book was released on 1981 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a review of available information, visual observations of conditions as they existed on the date of the field inspection, and supporting engineering calculations, the general condition of the Russellton Slurry Pond 3 is considered to be fair. This assessment is based primarily on visual observations of the embankment, spillway and seepage conditions and hydrology/ hydraulic analyses of reservoir/spillway capacity. The structure is classified as a 'large' size, 'high' hazard structure. Corps of Engineers guidelines recommend the Probable Maximum Flood (PMF) as the Spillway Design Flood for a 'large' size, 'high' hazard dam. Pond 3'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 Phase I investigation of Pond 3 revealed deficiencies and conditions which should be corrected or improved through implementation of the following recommended remedial, monitoring and/or improvement efforts.

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1982 with total page 1262 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 1982 with total page 1304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book National Dam Inspection Program Mine Number 51 Pond 3 NDI Number PA 00863 PennDER Number 63 94 Ohio River Basin Tributary to Pigeon Creek Washington County Pennsylvania Phase I Inspection Report written by and published by . This book was released on 1981 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mine No. 51 - Pond 3 is located at the headwaters of an unnamed tributary to Pigeon Creek in Somerset Township, Washington County, Pennsylvania. The pond is approximately 1/2 mile north of Ellsworth, Pennsylvania. Mine No. 51 - Pond 3 was constructed to serve as a holding and settling impoundment for fine coal refuse slurry from the Mine No. 51 Coal Preparation Plant. Based on the observed downstream conditions, Mine No. 51 - Pond 3 was assigned a high hazard potential rating.

Download or read book Languedoc Roussillon written by and published by . This book was released on 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 Inspection Program Unnamed Tributary to Harmon Creek NDI Number PA 01125 PennDER Number 63 84 SCS Number PA 480 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 480 was designed by the U.S. Department of Agriculture, Soil Conservation Service (SCS) for floodwater detention. The total length of the dam is 555 feet, including the emergency spillway on the right abutement; the maximum height of the dam is 66 feet. 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 low-level inlet on the concrete riser is a 9 inch high by 15 inch wide orifice; this inlet maintains the normal pool level. There is 25.1 acre-feet of storage at normal pool level, all of which is reserved for a 50-year accumulation of sediment. Hydraulic/hydrologic evaluations, revealed that the spillway will pass the Probable Maximum Flood (PMF) without overtopping the dam. A spillway design flood (SDF) in the range of the 1/2 Probable Maximum Flood (1/2 PMF) to the PMF is required for PA 480. The 1/2 PMF was selected as the SDF. The spillway is therefore considered to be 'adequate'.

Download or read book National Dam Inspection Program Raw Water Pond NDI Number PA 01137 PennDER Number 61 90 Ohio River Basin Sawmill Creek Washington County Pennsylvania Phase I Inspection Report written by Samuel G. Mazzella and published by . This book was released on 1980 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Raw Water Pond was designed and constructed as an earthfill structure with clay core and cutoff along the centerline. The embankment is 1190 feet long, with a toe to crest height of 25.2 feet and a crest width of 25 feet. The Raw Water Pond outlet works is a 14 inch diameter steel pipe with an intake at the bottom of the Pond. The outlet works maintains the operating pool approximately 1.5 feet below the invert of the principal (and emergency) spillway. A gate valve and flow monitoring weir box are located downstream of the embankment. Outlet works flows are discharged to the Treated Water Pond below. Based on a review of available design information and visual observations of conditions as they existed on the date of the field inspection, the general condition of the Raw Water Pond is considered to be poor. This assessment is based primarily on visual observations that indicate a possible inadequate margin of safety against slope failure of the embankment. Spillway capacity is 'inadequate' because the non-overtopping flood discharge was found, by using the HEC-1 computer program, to be in 0.18 PMF.

Download or read book National Dam Inspection Program Harmar Refuse Bank Dam NDI Number PA 00835 PennDER Number 2 53 Ohio River Basin Tributary to Guys Run Allegheny County Pennsylvania Phase I Inspection Report written by and published by . This book was released on 1981 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Harmar Refuse Bank is located on an unnamed tributary to Guy's Run in Harmar Township, Allegheny County, Pennsylvania, approximately one mile north of Harmarville, Pennsylvania. Harmar Refuse Bank was constructed as a disposal area for coarse and fine coal refuse from the Harmar Mine and Preparation Plant. Harmar Refuse Bank was assigned a 'high' hazard potential rating. This rating is based on the observed height and impounding capacity of the pond and the downstream floodplain conditions, which included numerous inhabited dwellings and Guy's Run Road. Failure of the Harmar Refuse Bank could result in significant disruption of commercial activities and loss of more than a few lives could result.

Download or read book National Dam Inspection Program Robena Slurry Pond 6 NDI Number PA 00197 Penn DER Number 30 26 Ohio River Basin Tributary to Whiteley Creek Greene County Pennsylvania Phase I Inspection Report written by and published by . This book was released on 1981 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a review of available design information, visual observations of conditions as they existed on the date of the field inspection, and supporting calculations, the general condition of Robena Slurry Pond 6 is considered to be good. The structure is classified as a 'large' size, 'significant' hazard dam. Corps of Engineers guidelines recommend the Probable Maximum Flood (PMF) as the spillway Design Flood for a 'large' size, 'significant' hazard dam. Robena Slurry Pond 6'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. No emergency operation and warning plan was found for the facility. The field inspection indicated very minor deficiencies which can be corrected or improved as a part of normal maintenance efforts.

Download or read book National Dam Inspection Program Heritage Reservation Dam NDI I D Number PA 01142 PennDER I D Number 26 101 Ohio River Basin Little Sandy Creek Fayette County Pennsylvania Phase I Inspection Report written by and published by . This book was released on 1981 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a visual inspection, operational history, and available engineering data, Heritage Reservation Dam is considered to be in excellent condition. The size classification of the facility is intermediate and the hazard classification is considered to be high. In accordance with the recommended guidelines, the Spillway Design Flood (SDF) is considered to be the PMF (Probable Maximum Flood). Results of the hydrologic and hydraulic analysis indicate that the facility is capable of passing and/or storing the PMF without overtopping the dam or dike. Consequently, the spillway is considered adequate.

Download or read book National Dam Inspection Program PA 482 Dam NDI I D Number PA 469 DER I D Number 63 72 Ohio River Basin Tributary of Harmon Creek Washington County Pennsylvania Phase I Inspection Report written by D'APPOLONIA CONSULTING ENGINEERS INC PITTSBURGH PA. and published by . This book was released on 1979 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The PA-482 dam is one of the 14 flood control projects in the Harmon Creek watershed. The dam consists of an earth embankment approximately 460 feet long with a maximum height of 38 feet from the downstream toe and a crest width of 14 feet. The flood discharge facilities for the dam consist of a drop inlet primary spillway located at the center of the embankment and an emergency spillway on the left abutment (looking downstream). The primary spillway structures consist of a two-stage reinforced concrete riser, a 24-inch-diameter reinforced concrete conduit, and a reinforced concrete impact basin at the downstream end of the outlet pipe. The emergency spillway is a 200-foot-wide trapezoidal earth channel excavated into the left abutment. The reservoir outlet for the dam consists of a 15-inch steel pipe extending from the upstream toe of the dam to the drop inlet structure. Flow through the reservoir outlet is controlled by a manually operated sluice gate lcoated in the drop inlet structure.

Download or read book National Dam Inspection Program Mine Number 60 Pond 5 NDI Number PA 01144 PENN DER Number 63 88 Ohio River Basin Tributary to Center Branch Pigeon Creek Washington County Pennsylvania Phase I Inspection Report written by ACKENHEIL AND ASSOCIATES INC PITTSBURGH PA. and published by . This book was released on 1981 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the investigation is to make a determination on whether or not the dam constitutes a hazard to human life or property. Mine No. 60-Pond 5 is located at the headwaters of an unnamed tributary to the Center Branch of Pigeon Creek, in Somerset Township, Washington, County, Pennsylvania. The Mine No. 60-Pond 5 is classified as a 'high' hazard dam. The No. Mine 60-Pond 5 is owned by the Bethlehem Mines Corporation Eight-Four, Pennsylvania. The field inspection of Mine No. 60-Pond 5 was performed on 18 March 1981 and 26 March 1981 and consisted of: Visual observations of the embankment crest and slopes, groins and abutments; Visual observations of the principal (and emergency) spillway including approach channel, overflow crest, and discharge channel; Visual observations of the embankment's downstream toe area including drainage channels and surficial conditions; Visual observations of downstream conditions and evaluation of the downstream hazard potential; Visual observations of the reservoir shoreline and watershed; Visual observations of the outlet works; Transit stadia surveys of relative elevations along the embankment crest centerline, spillway, and across the embankment slopes. The visual observations were made during periods when the reservoir was at normal operating level.

Download or read book National Dam Inspection Program Kenda Dam NDI Number PA 00459 PennDER Number 65 118 Ohio River Basin Tributary of Little Sewickley Creek Westmoreland County Pennsylvania Phase I Inspection Report written by John A. Dziubek and published by . This book was released on 1980 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kenda Dam is owned and operated by the Westmoreland Recreation Society, Inc. and is classified as a Small size - High hazard 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 not 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 Kenda Dam. The 1/2 PMF was selected as the SDF because of the small size of the drainage area and impoundment. During the 1/2 PMF, the dam is overtopped by a maximum depth of 1.24 feet for a total duration of 7.00 hours. It is estimated that, in its present condition, the dam is likely to fail during the 1/2 PMF. Analysis performed to assess the impact of failure of the dam on the damage center downstream indicated that a significant increase in damage would occur compared to conditions if the dam did not fail. Therefore, the spillway is assessed as being seriously inadequate. It is recommended that the owner immediately initiate an engineering study to further evaluate the spillway capacity and develop recommendations for remedial measures to reduce the overtopping potential of the dam.

Download or read book National Dam Inspection Program Trax Farm Dam NDI Number PA 00131 PennDer Number 63 96 Ohio River Basin Tributary to Peters Creek Washington County Pennsylvania Phase I Inspection Report written by and published by . This book was released on 1981 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trax Farm Dam is located across an unnamed tributary to Peters Creek in Peters Township, Washington County, Pennsylvania, approximately 2.5 miles northwest of Finleyville, Pennsulvania. Trax Farm Dam was constructed to provide a water supply for irrigation. Based upon the observed height of the dam and downstream floodplain conditions, Trax Farm Dam was assigned a 'high' hazard potential rating.