Download or read book DELAWARE RIVER BASIN ALLEGHENY CREEK BERKS COUNTY PENNSYLVANIA NDS ID PA 00714 DER ID 6 373 GREEN HILLS DAM PHASE 1 INSPECTION REPORT NATIONAL DAM INSPECTION PROGRAM written by United States. Army. Corps of Engineers. Baltimore 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 DELAWARE RIVER BASIN SCOTTS RUN BERKS COUNTY PENNSYLVANIA NDS ID PA 00724 DER ID 6 401 HOPEWELL DAM PHASE 1 INSPECTION REPORT NATIONAL DAM INSPECTION PROGRAM written by United States. Army. Corps of Engineers. Baltimore 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 Delaware River Basin written by National Dam Inspection Program and published by . This book was released on 1980 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book DELAWARE RIVER BASIN CROW CREEK MONTGOMERY COUNTY PENNSYLVANIA written by United States. Army. Corps of Engineers. Baltimore 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 National Dam Inspection Program SCS PA 477 NDS I D Number PA 00720 DER I D Number 6 457 Delaware River Basin Tributary of Mill Creek Berks County Pennsylvania Phase I Inspection Report written by John Henry Frederick (Jr) and published by . This book was released on 1980 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: SCS PA 477 is a 52-foot-high, 1,550-foot-long dam. The embankment contains an impervious core constructed over a cutoff trench under the dam centerline. About 1,270 feet of the embankment is roughly parallel to U.S. Route 22/Interstate 78. The remaining 280 feet of the embankment forms an angle of about 60 degrees with the highway. The shorter leg contains the maximum section and the principal spillway. The principal spillway consists of a concrete drop inlet riser, a 222 foot long, 30 inch reinforced concrete pipe with eight anti-seep collars, and an impact basin. The emergency spillway was excavated through rock at the right abutment. The grass-lined trapezoidal channel is approximately 150 feet wide and 30 feet wide. The dam and its appurtenant facilities are considered to be in good condition. Calculations indicate that the existing spillway systems are capable of passing the Probable Maximum Flood (PMF) without overtopping. Therefore, the spillway system is considered to be adequate.
Download or read book DELAWARE RIVER BASIN QUEEN ANNE CREEK BUCKS COUNTY PENNSYLVANIA NDS ID PA 00801 DER ID 9 171 OXFORD VALLEY MALL DAM PHASE 1 INSPECTION REPORT NATIONAL DAM INSPECTION PROGRAM written by United States. Army. Corps of Engineers. Baltimore 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 DELAWARE RIVER BASIN DEEP CREEK MONTGOMERY COUNTY PENNSYLVANIA NDS ID PA 00200 DER ID 46 8 DEEP CREEK DAM PHASE 1 INSPECTION REPORT NATIONAL DAM INSPECTION PROGRAM written by United States. Army. Corps of Engineers. Baltimore 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 DELAWARE RIVER BASIN NEWTOWN CREEK BUCKS COUNTY PENNSYLVANIA NDS ID PA 01064 DER ID 9 178 NEWTOWN DAM SCS PA 621 PHASE 1 INSPECTION REPORT NATIONAL DAM INSPECTION PROGRAM written by United States. Army. Corps of Engineers. Baltimore 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 DELAWARE RIVER BASIN TRIBUTARY RIDLEY CREEK DELAWARE COUNTY PENNSYLVANIA written by United States. Army. Corps of Engineers. Baltimore 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 National Dam Inspection Program Deep Creek Dam NDS I D Number PA 00200 DER I D Number 46 8 Delaware River Basin Deep Creek Montgomery County Pennsylvania Phase I Inspection Report written by Mary F. Beck and published by . This book was released on 1980 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deep Creek Dam is owned by the Montgomery County Commissioners and maintained by the Parks Department. The dam and reservoir are used for recreational purposes. The dam and its appurtenant facilities are considered to be in fair condition. The dam is classified as a Small size structure with a High hazard classification consistent with its potential in the event of sudden failure for extensive property and loss of life downstream along Perkiomen Creek. In accordance with criteria established by Federal (OCE) Guidelines, the spillway design flood for this 'Small' size dam and 'High' hazard classification is 0.5 to the full Probable Maximum Flood (PMF). As the total storage capacity is nearer the lower limited for the Small size classification, and as the watershed controlled by Deep Creek Dam is small compared to the watershed controlled by downstream knight Dam, the selected spillway design flood is 0.5 PMF. Hydrologic and hydraulic calculations indicate that the spillway structure is capable of discharging about 0.21 PMF without overtopping the embankment at the right abutment. If the right abutment and embankment were raised to the original design elevation, the spillway would be capable of discharging about 0.38 PMF without overtopping. The 0.4 PMF is judged to cause failure of the embankment by overtopping, but failure does not significantly increase the danger to human life or property; thus, the spillway rating for this structure is considered to be Inadequate but not Seriously Inadequate.
Download or read book DELAWARE RIVER BASIN SAW CREEK PIKE COUNTY PENNSYLVANIA SAW CREEK CLUB DAM NDI ID NO PA 00764 DER ID NO 52 7 SAW CREEK CLUB INC PHASE 1 INSPECTION REPORT NATIONAL DAM INSPECTION PROGRAM written by Gannett Fleming Corddry and Carpenter 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 DELAWARE RIVER BASIN LAKEVILLE CREEK WAYNE COUNTY PENNSYLVANIA LOCKLIN POND DAM NDI ID NO PA 00139 DER ID NO 64 31 CLIFTON AND LEWIS LOCKLIN PHASE 1 INSPECTION REPORT NATIONAL DAM INSPECTION PROGRAM written by Gannett Fleming Corddry and Carpenter 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 Delaware River Basin Miller Pond Dam Wayne County Pennsylvania written by United States. Army. Corps of Engineers. Baltimore District and published by . This book was released on 1980 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Inspection Program Saw Mill Dam NDS ID PA 00324 DER ID 46 261 Delaware River Basin Saw Mill Creek Montgomery County Pennsylvania Phase I Inspection Report written by WOODWARD-CLYDE CONSULTANTS PLYMOUTH MEETING PA. and published by . This book was released on 1979 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: Saw Mill Dam is a zoned earth embankment with an impervious core, an outer previous shell, a cutoff trench and drainage blanket and rock toe. These features are shown on Plate 3, entitled 'Typical Embankment Sections'. The dam is approximately 1,335 feet long and the height, measured from the crest to the principal spillway discharge pipe inlet, is 47 feet. Borrow materials were obtained from the spillway excavation and within the reservoir area. The core of the dam is composed of clayey materials derived from the borrow areas, and the shell is composed of more previous materials selectively excavated from the borrow pits. The 10 foot wide cutoff trench has 1H:1V side slopes and a grout cap at the base of the trench. The foundation was grouted using a single line grout curtain with six foot hole spacings. The average hole depth is 15 feet and the maximum hole depth is 30 feet. The upstream slope is 3H:1V, the lower two-thirds of the slope is protected with 18 inches of riprap over a 12-inch filter blanket and the upper portion is protected with grass. The downstream slope is 2.5H:1V and protected with grass.
Download or read book Delaware River Basin Lakeside Dam Schuylkill County Pennsylvania written by National Dam Inspection Program and published by . This book was released on 1980 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Inspection Program Broomalls Dam NDS I D Number PA 00349 DER I D Number 23 9 Delaware River Basin Tributary to Ridley Creek Delaware County Pennsylvania Phase I Inspection Report written by Mary F. Beck and published by . This book was released on 1980 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: Visual inspection indicates that the dam and spillway structures of Broomalls Dam are in poor conditon. In 1970, the original spillway capacity was supplemented by the installation of three 27 inch by 43 inch corrugated metal pipe arches, with an entrance invert about five inches above the spillway and discharging at the downstream toe. The November inspection disclosed that surface erosion above the pipes had occurred, probably as a result of surface runoff over the downstream parapet wall. Some erosion below the culvert outlets was evident. Subsequent inspection in February 1980, disclosed considerable erosion and apparent piping at the downstream end of the culverts. One culvert was filled with ice at its outlet and had a column of ice reaching from the outlet to the ground surface. Ice was also visible at the junction of the culverts and embankment. There appears to be a small, constant, undetermined source of water for ice formation. At the requests of local Department of Environmental Resources officials, the Reservoir has been lowered about 2.5 feet through the upper drain. As a result of the rapid deterioration in the condition of the dam since November, the dam is considered to be in an 'Unsafe, nonemergency' condition.
Download or read book DELAWARE RIVER BASIN MILL DAM COMMONWEALTH OF PENNSYLVANIA WERNERSVILLE STATE HOSPITAL NDI NO PA 00711 DER NO 6 295 BERKS COUNTY PENNSYLVANIA PHASE 1 INSPECTION REPORT NATIONAL DAM INSPECTION PROGRAM 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:
