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
Download 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 full books in PDF, epub, and Kindle. Read online free 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 ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
| Author | : Samuel G. Mazzella |
| Publisher | : |
| Total Pages | : 82 |
| Release | : 1980 |
| Genre | : |
| ISBN | : |
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.
| Author | : |
| Publisher | : |
| Total Pages | : 206 |
| Release | : 1980 |
| Genre | : Science |
| ISBN | : |
| Author | : ACKENHEIL AND ASSOCIATES INC PITTSBURGH PA. |
| Publisher | : |
| Total Pages | : 105 |
| Release | : 1980 |
| Genre | : |
| ISBN | : |
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.
| Author | : ACKENHEIL AND ASSOCIATES INC PITTSBURGH PA. |
| Publisher | : |
| Total Pages | : 103 |
| Release | : 1980 |
| Genre | : |
| ISBN | : |
The general condition of the Refuse Settling Basin is considered to be fair. This assessment is based on visual observations that indicate a possible inadequate margin of safety against slope failure of a high ground water level exists in Embankment A. The condition is not considered to represent an immediate threat to the structure because of the relatively low impoundment pool elevation. It should, however, be evaluated. If a high ground water does not exist in Embankment A, the facility can be considered to be in good condition. 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 visual inspection indicated several minor deficiencies in addition to the possible high ground water condition. The deficiencies can be corrected or improved through implementation of the following recommended evaluation, remedial, monitoring and/or maintenance efforts.
| Author | : |
| Publisher | : |
| Total Pages | : 73 |
| Release | : 1981 |
| Genre | : |
| ISBN | : |
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.
| Author | : |
| Publisher | : |
| Total Pages | : 1322 |
| Release | : 1981 |
| Genre | : Science |
| ISBN | : |
| Author | : ACKENHEIL AND ASSOCIATES INC PITTSBURGH PA. |
| Publisher | : |
| Total Pages | : 71 |
| Release | : 1981 |
| Genre | : |
| ISBN | : |
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.
| Author | : |
| Publisher | : |
| Total Pages | : 72 |
| Release | : 1981 |
| Genre | : |
| ISBN | : |
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.
| Author | : |
| Publisher | : |
| Total Pages | : 942 |
| Release | : 1981 |
| Genre | : Research |
| ISBN | : |
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.
| Author | : John A. Dziubek |
| Publisher | : |
| Total Pages | : 87 |
| Release | : 1980 |
| Genre | : |
| ISBN | : |
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'.
