Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1980 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Inspection Program Bear Creek Lake Dam NDI Number PA 00610 DER Number 13 98 Carbon County Pennsylvania Phase I Inspection Report written by BERGER ASSOCIATES INC HARRISBURG PA. and published by . This book was released on 1979 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bear Creek Lake Dam is a zoned earthfill dam having a clay core and upstream clay blanket at the base of the embankment. The embankment length is 500 feet and its height is 35 feet above the streambed. A concrete cutoff wall was installed over a distance of 200 feet along the centerline of the embankment, refer to Appendix F, Plate V. This wall extends from a minimum of three feet below the rock surface to five feet above the rock surface. The outer shell of the embankment consists of rolled select fill. A rock toe drain is provided at the downstream toe of the embankment. This drain is founded on a 12-inch thick gravel filter. The upstream embankment slope is riprapped to a vertical distance of 10 feet below the crest of the dam. The spillway is an uncontrolled concrete ogee section located at the left abutment of the embankment. The spillway outlet channel discharges directly to the natural stream.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1980-03 with total page 904 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 Inspection Program Bear Creek Lake Dam NDI ID Number PA 00545 DER ID Number 40 47 Delaware River Basin Bear Creek Luzerne County Pennsylvania Phase I Inspection Report written by O'BRIEN AND GERE ENGINEERS INC PHILADELPHIA PA JUSTIN AND COURTNEY DIV. and published by . This book was released on 1979 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bear Creek Lake Dam is a rock filled timber crib structure approximately 325 feet long and 17 feet high at its maximum section. An ungated drop spillway with an 158-foot long sharp crested weir is located approximately 60 feet from the right abutment (looking downstream). The 80 acre lake is used for recreation by the residents of Bear Creek Village. It is unknown when the dam was constructed. In the state inspection report of April, 1915 it is stated, 'This dam was constructed a great many years ago, but it has been repaired from time to time, so that more than likely none of the original structure is now in existence.' Examination of the results of the hydrologic and hydraulic analysis indicate that the drop spillway is capable of passing 11 percent of the Probable Maximum Flood (PMF) without overtopping of the embankment. Failure of the dam would significantly increase the hazard to loss of life downstream of the dam. Therefore, the capacity of the drop spillway is classified as 'seriously inadequate.' The dam is considered to be 'unsafe (non-emergency).'
Download or read book Descriptive Micrometeorology written by R. E. Munn and published by Elsevier. This book was released on 2013-09-12 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Descriptive Micrometeorology compiles views and findings in micrometeorology, which is concerned with the surface boundary layer or thin slice of atmosphere extending from the ground up to a height of approximately 50 meters. This book describes the micrometeorology of soil, short vegetation, forest, water, ice, snow, and built-up urban surfaces. The properties and influence of the planetary boundary layer are not included. The topics discussed include the energy balance at the earth-atmosphere boundary, radiative flux divergence, factors influencing air temperatures, and Kolmogorov similarity theory. The Eddy correlation method for measuring evaporation, radiation balance of snow and ice surfaces, heat storage and horizontal advection in water, and changes in wind patterns are also covered. This publication is intended for meteorologists, but is also a good reference for chemists, engineers, geographers, botanists, hydrologists, health physicists, glaciologists, town planners, limnologists, oceanographers, air pollution control officers, foresters, and ecologists interested in the surface boundary layer.
Download or read book A Meteorological Survey of the Oak Ridge Area written by and published by . This book was released on 1953 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Inspection Program Long Run Reservoir Number I Dam NDI Number PA 00882 DER Number 13 004 Delaware River Basin Carbon County Pennsylvania Phase I Inspection Report written by Hendrik Jongsma and published by . This book was released on 1981 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the visual inspection, past performance and the available engineering data, the dam and its appurtenant structures appear to be in fair condition. In accordance with the Corps of Engineers' evaluation guidelines, the size classification of this dam is small and the hazard classification is high. These classifications indicate that the Spillway Design Flood (SDF) should be in the range of one-half the Probable Maximum Flood (PMF) to the full PMF. The recommended SDF for this structure is one-half the PMF. The spillway capacity is adequate for passing 23 percent of the PMF peak inflow without overtopping the dam. Overtopping by the SDF is expected not to cause failure of the dam. The spillway, therefore, is considered to be inadequate, but not seriously inadequate. Some recommendations presented for immediate action by the owner are: (1) that measures shall be taken to provide an adequate spillway capacity, (2) that the cracked spillway slab be repaired, (3) that the downstream end of the spillway be protected from washouts during large discharges, (4) that the upstream gates be maintained and operated on a regular basis, and (5) that the downstream blow-off valves be maintained and operated on an annual basis.
Download or read book Symposium Air Over Cities written by and published by . This book was released on 1962 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Inspection Program Y M C A Dam NDS ID Number PA 873 DER ID Number 13 100 Delaware River Basin Drakes Creek Carbon County Pennsylvania Pleasant Valley West Property Owners Association Phase I Inspection Report written by KIMBALL (L ROBERT) AND ASSOCIATES EBENSBURG PA. and published by . This book was released on 1980 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: YMCA Dam is an earthfill dam, 42 feet high and 608 feet long. The crest width is 9 feet. The upstream slope is 2.5H:1V and grass covered. The downstream slope was measured to be 2H:1V and grass covered. The reservoir drain consists of a 24 inch corrugated metal pipe with a concrete endwall located 270 feet from the left abutment. The spillway consists of a 42 foot long ogee section, 150 feet from the left abutment. The inspection and review of data of the YMCA Dam did not reveal any problems which require emergency action. The dam appears to be in fair condition. The seepage which was noted along the toe of dam should be monitored and evaluated by a professional engineer knowledgeable in earth dams. The evaluation should be implemented immediately. The spillway and reservoir are capable of controlling approximately 81% of the PMF. Based on criteria established by the Corps of Engineers, the spillway is termed adequate.
Download or read book The Forecasting of Micrometeorological Variables written by Maynard Elliott Smith and published by . This book was released on 1950 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Inspection Program Heilman Dam NDI Number PA 00612 DER Number 13 005 Delaware River Basin Carbon County Pennsylvania Phase I Inspection Report written by Hendrik Jongsma and published by . This book was released on 1981 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the visual inspection, past performance and the available engineering data, the dam and its appurtenant structures appear to be in poor condition. In accordance with the Corps of Engineers' evaluation guidelines, the size classification of this dam is small and the hazard classification is significant. These classifications indicate that the Spillway Design Flood (SDF) should be in the range of the 100 year flood to one-half the Probable Maximum Flood (PMF). The recommended SDF for this structure is the 100 year flood. The spillway capacity is not adequate for passing the SDF peak inflow without overtopping the dam. The spillway is considered to be inadequate, but not seriously inadequate. Some recommendations presented for immediate action by the owner are: (1) that measures shall be taken to provide an adequate spillway capacity, which shall include the raising of the embankment profile to at least the design crest elevation, (2) that the embankment be cleared of all trees, brush and weeds under the direction of a professional engineer, experienced in the design and construction of earthfill dams, and (3) that access above the floodplain be provided for surveillance.
Download or read book National Dam Inspection Program Lake Quinn Dam NDI ID Number PA 00145 DER ID Number 64 43 Delaware River Basin Tributary of Middle Creek Wayne County Pennsylvania Phase I Inspection Report written by CORPS OF ENGINEERS BALTIMORE MD BALTIMORE DISTRICT. and published by . This book was released on 1981 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The visual inspection and review of available design and construction information indicate that Lake Quinn Dam is in fair condition. Deficiencies noted during the inspection included the lack of functional drawdown facilities and minor seepage through the masonry near the right abutment. Based on the size and hazard classification of the dam, the recommended Spillway Design Flood (SDF) varies between 1/2 the Probable Maximum Flood (PMF) and the PMF. The 1/2 PMF has been selected as the SDF due to the size of the dam and reservoir, and the downstream conditions. The hydrologic and hydraulic computations indicate that the combination of reservoir storage and spillway discharge capacity will pass only 3 percent of the PMF without overtopping the dam. Overtopping the dam could cause failure, which would lead to a significant increase in downstream loss of life and property damage. Therefore, the spillway for Lake Quinn Dam is considered to be seriously inadequate, and the dam is judged to be unsafe, non-emergency.
Download or read book National Dam Inspection Program Wild Creek Dam Carbon County Pennsylvania National I D Number PA 00609 Delaware River Basin Wild Creek Carbon County Pennsylvania Phase I Inspection Report written by John H Frederick (Jr) and published by . This book was released on 1978 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wild Creek Dam is a zoned rolled earth and coarse fill embankment with riprap facing on the upstream side. The downstream side is a rolled coarse rock shell. It is approximately 1076 feet long and 135 feet high. This dam was designed to pass the probable maximum flood. However, it is the second in a series of two dams on Wild Creek above Beltzville Reservoir. A sudden breach of the upper, Penn Forest, dam would probably result in overtopping failure of Wild Creek Dam. The Corps of Engineers' Beltzville Dam, immediately downstream from Wild Creek, is reportedly designed to withstand this event. Since Wild Creek Dam has been designed to pass the PMF, the spillway is considered to be 'Adequate'. Wild Creek Dam appears to be in excellent condition. No visible signs of uncontrolled leakage, sloughing, or significant displacement were discovered other than along the spillway retaining walls where some cracking was observed. It was noted that this zoned embankment dam was designed without protective filters between the impervious core and coarser outer shell. However, no indications of internal erosion have manifested themselves in over 40 years of service.
Download or read book National Dam Inspection Program Indian Lake Dam NDI ID Number PA 01041 DER ID Number 40 143 Delaware River Basin Shades Creek Luzerne County Pennsylvania Phase 1 Inspection Report written by and published by . This book was released on 1981 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this inspection is to determine if the dam constitutes a hazard to human life and property. The Dam's location is Bucks Township, Luzerne County. The overall appearance and general condition of the dam and appurtenances are fair. The spillway crest has been raised and the dam crest is two feet below design elevation. These and other noteworthy deficiencies noted. The reservoir pool was 3.5 feet below spillway crest (corewall) on the day of the initial inspection, 22 October 1980. The lake was purposely drawn down so that maintenance of the dam could be performed. On the date of the review inspection, the reservoir level was one foot above the spillway crest (corewall).
Download or read book Decennial Census of United States Climate written by United States. Weather Bureau and published by . This book was released on 1963 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Inspection Program Maple Lake Dam NDI ID Number PA 01026 DER ID Number 57 38 Susquehanna River Basin Branch of Blackwater Run Sullivan County Pennsylvania Phase I Inspection Report written by and published by . This book was released on 1981 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maple Lake Dam is an earthfill embankment 14.4 feet high and 283 feet long, excluding spillway. The emergency spillway is located at the left abutment, consisting of an earth channel having a trapezoidal cross section. The bottom width of the spillway at the reservoir outlet is 56 feet. A service spillway, consisting of a 12-inch riser pipe and an 8-inch diameter outlet pipe, is located approximately 100 feet from the right abutment. The outlet works was reported to consist of an 8-inch diameter asbestos cement pipe, extending upstream of the riser pipe to the reservoir and terminating with two sections of an 8-inch diameter vitrified clay pipe, having a concrete plug at the inlet. Based on visual inspection, the Maple Lake Dam is judged to be in good condition. Under the present conditions, the spillway will pass approximately 37 percent of the PMF. Should the top of the dam be restored to its design elevation, the spillway could pass the SDF without overtopping the dam.
