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National Dam Inspection Program Mill Dam Ndi Number Pa 00711 Der Number 6 295 Delaware River Basin Commonwealth Of Pennsylvania Berks County Pennsylvania Phase I Inspection Report
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Book Synopsis National Dam Inspection Program. Mill Dam (NDI Number PA-00711, DER Number 6-295), Delaware River Basin, Commonwealth of Pennsylvania, Berks County, Pennsylvania. Phase I Inspection Report by : Hendrik Jongsma
Download or read book National Dam Inspection Program. Mill Dam (NDI Number PA-00711, DER Number 6-295), Delaware River Basin, Commonwealth of Pennsylvania, Berks County, Pennsylvania. Phase I Inspection Report written by Hendrik Jongsma and published by . This book was released on 1981 with total page 70 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 good 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 the full PMF. The spillway capacity is adequate for passing 34 % of the PMF peak inflow without overtopping the dam. Overtopping of the dam by the PMF will not cause failure. The spillway, therefore is considered to be inadequate, but not seriously inadequate. The following recommendations are presented for immediate action by the owner: (1) That the valve on the outlet pipe be maintained and operated at least once a year; (2) That a formal surveillance and downstream warning system be developed for use during periods of high or prolonged rainfall; (3) That provision be made to cut or remove the screen over the spillway in case of an emergency; and (4) That an operation and maintenance manual be prepared for guidance in the operation of the dam during normal and emergency conditions, and that a schedule be developed for the annual inspection of the dam and its appurtenant structures.
Book Synopsis 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. by : United States. Army. Corps of Engineers. Baltimore District
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:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1981 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1981-10 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 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 by : WOODWARD-CLYDE CONSULTANTS PLYMOUTH MEETING PA.
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.
Book Synopsis 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 by : John Henry Frederick (Jr)
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.
Book Synopsis National Dam Inspection Program, Spring Mill Dam (NDS I.D. Number PA 00785 DER I.D. Number 39-1), Delaware River Basin, Spring Creek, Lehigh County, Pennsylvania. Phase I Inspection Report by : Mary F. Beck
Download or read book National Dam Inspection Program, Spring Mill Dam (NDS I.D. Number PA 00785 DER I.D. Number 39-1), Delaware River Basin, Spring Creek, Lehigh County, Pennsylvania. Phase I Inspection Report written by Mary F. Beck and published by . This book was released on 1980 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spring Mill Dam, built in 1889 and 1900, is owned by Northampton Borough Municipal Water Authority. The dam and reservoir are currently used as a secondary water supply for Northampton Borough, Pennsylvania. The dam and its appurtenant facilities are considered to be in good condition. The dam is classified as a Small size structure with a Significant hazard classification, consistent with its appreciable economic loss and possible loss of life in the event of failure. In accordance with criteria established by Federal (OCE) Guidelines, the spillway design flood for this Small size dam and 'Significant' hazard classification ranges from the 100 year event to 0.5 PMF (Probable Maximum Flood). As height of this dam is near the lower limit for small size dams, and the total capacity is less than one-third the upper limit, the selected spillway design flood is the 100 year event. Hydrologic and hydraulic computations presented in Appendix D indicate that the structure will not pass the 100 year event without overtopping. It is further assessed that the 100 year event would not cause failure or significantly increase the potential for excessive property damage and loss of life downstream of the dam. Therefore, the spillway systems of this structure are considered to be Inadequate but not Seriously Inadequate.
Book Synopsis National Dam Inspection Program. SCS PA-476 (NDS-I.D. Number PA 00719, DER I.D. Number 6-456), Delaware River Basin, Tributary of Mill Creek, Berks County, Pennsylvania. Phase I Inspection Report by : John Henry Frederick (Jr)
Download or read book National Dam Inspection Program. SCS PA-476 (NDS-I.D. Number PA 00719, DER I.D. Number 6-456), 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 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: SCS PA 476 Dam is a 46-foot-high zoned-earth embankment about 400 feet long. The principal spillway consists of a concrete drop inlet riser, 182 feet of 24 inch reinforced concrete pipe with six anti-seep collars, and an impact basin. The reservoir drain is a 12-inch corrugated metal pipe. 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.
Book Synopsis National Dam Inspection Program . Green Hills Dam. NDS I.D. Number Pa -00714, DER I.D. Number 6-373. Delaware River Basin, Berks County, Pennsylvania. Phase i Inspection Report by : Mary F. Beck
Download or read book National Dam Inspection Program . Green Hills Dam. NDS I.D. Number Pa -00714, DER I.D. Number 6-373. Delaware River Basin, Berks County, Pennsylvania. Phase i Inspection Report written by Mary F. Beck 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 expeditiously identify 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 investigations, testing and detailed computational evaluations are beyond the scope of the Phase I investigation; however, the investigation is intended to identify the need for more detailed studies. In reviewing this report, it should be realized that the reported condition of the dam is based on observations of field conditions at the time of inspection along with data available to the inspection team. In cases where the reservoir was lowered or drained prior to inspection, such action, while improving the stability and safety of the dam, removes the normal load on the structure and may obscure certain conditions which might otherwise be detectable if inspected under the normal operating environment of the structure.
Book Synopsis National Dam Inspection Program. Mill Water Dam (NDS I.D. Number PA 00703, DER I.D. Number 6-442), Susquehanna River Basin, Back Creek, Berks County, Pennsylvania. Phase I Inspection Report by : Mary F. Beck
Download or read book National Dam Inspection Program. Mill Water Dam (NDS I.D. Number PA 00703, DER I.D. Number 6-442), Susquehanna River Basin, Back Creek, Berks County, Pennsylvania. Phase I Inspection Report written by Mary F. Beck and published by . This book was released on 1980 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mill Water Pond Dam is owned by the Bethlehem Mines Corporation. The dam was originally built as an industrial water supply dam for the Grace Mine. As the mine is no longer in operation, water from the reservoir is no longer used. The dam and its appurtenant facilities are considered to be in good condition. The dam is classified as a Small size structure with a High hazard classification, consistent with the dam's location immediately above an occupied dwelling and above commercial buildings and other residences farther downstream on Conestoga Creek. In accordance with criteria established by Federal (OCE) Guidelines, the spillway design flood for this Small size dam and High hazard classification is one-half to the full Probable Maximum Flood (PMF). As the dam height and total capacity are near the lower limit of the size classification, the selected spillway design flood is one-half the PMF. Mining of the deep iron ore body has caused extensive subsidence. The mine waste rock is disposed of downstream of the subsidence area. Therefore, currently, Mill Water Pond intercepts surface runoff only from about 0.31 square mile immediately above the dam. Hydrologic and hydraulic computations presented in Appendix D indicate the maximum spillway capacity is greater than the peak PMF inflow from the reduced watershed. Therefore, the spillway system of this structure is considered to be Adequate.
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1981 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis National Dam Inspection Program. Hopewell Dam (NDS I.D. Number PA 00724, DER I.D. Number 6-401), Delaware River Basin, Scotts Run, Berks County, Pennsylvania. Phase I Inspection Report by : Mary F. Beck
Download or read book National Dam Inspection Program. Hopewell Dam (NDS I.D. Number PA 00724, DER I.D. Number 6-401), Delaware River Basin, Scotts Run, Berks County, Pennsylvania. Phase I Inspection Report written by Mary F. Beck and published by . This book was released on 1980 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hopewell Dam is a recreational structure located in French Creek State Park and owned by the Commonwealth of Pennsylvania. Visual inspection and review of the design and construction documentation indicate that the dam and appurtenant structures of Hopewell Dam are in good condition, although the condition of the dormant vegetation appeared to be fair at the time of the inspection. In accordance with criteria established by Federal (OCE) Guidelines, the spillway design flood for this Small size dam and High hazard classification is one-half to the full Probable Maximum Flood (PMF). As the dam's total capacity is near the upper limit of the size classification and Hopewell village is located at a narrow section of the floodplain, the selected spillway design flood is the full PMF. Hydrologic and hydraulic computations presented in Appendix D indicate the spillway is capable of passing approximately 33 percent of the PMF without overtopping the embankment. as the one-half PMF is estimated to cause failure of the structure and to significantly increase the potential for downstream damage, the spillway system of this structure is considered to be Seriously Inadequate and the dam is in an unsafe, nonemergency condition.
Book Synopsis National Dam Inspection Program. SCS Dam PA-419 (NDI Number PA-00086 DER Number 64-170), Delaware River Basin, Wayne County, Pennsylvania. Phase I Inspection Report by : BERGER ASSOCIATES INC HARRISBURG PA.
Download or read book National Dam Inspection Program. SCS Dam PA-419 (NDI Number PA-00086 DER Number 64-170), Delaware River Basin, Wayne County, Pennsylvania. Phase I Inspection Report written by BERGER ASSOCIATES INC HARRISBURG PA. and published by . This book was released on 1980 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: This flood control dam consists of a 420-foot-long homogeneous earthfill embankment with a maximum height of 29 feet above the streambed. The structure has two spillways. The principal spillway is a drop inlet structure and discharges through a 24-inch diameter pipe. An emergency spillway is located in the right abutment. This spillway consists of a grassed earth channel with a bottom channel width of 41 feet. The emergency spillway crest is 5 feet below the top of the dam. Based on the visual inspection, past performance and the available engineering data, the dam and its appurtenant structures appear to be in good condition. The spillway capacity is adequate to pass the PMF peak inflow without overtopping the dam, and is considered to be adequate.
Book Synopsis National Dam Inspection Program. Dam G, (NDI ID Number PA-00643 DER ID Number 40-14), Delaware River Basin, Dreck Creek, Luzerne County, Pennsylvania. Phase I Inspection Report by : Albert Charles Hooke
Download or read book National Dam Inspection Program. Dam G, (NDI ID Number PA-00643 DER ID Number 40-14), Delaware River Basin, Dreck Creek, Luzerne County, Pennsylvania. Phase I Inspection Report written by Albert Charles Hooke and published by . This book was released on 1979 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dam G is a homogeneous earthfill embankment with a concrete core-wall. The embankment is 490 feet long and 19 feet high at maximum section. There are two outlet works at the dam. The first outlet works, which is near the right end of the embankment, consists of a concrete intake structure, two 24-inch diameter cast-iron pipes, and a valve house. This outlet works is connected to the water supply system. The second outlet works, which is near the left end of the dam, is similar to the first except it consists of a single 24-inch diameter pipe. The second outlet works provides the emergency drawdown capability. The concrete chute spillway is at the left abutment of the dam. Its crest is 3.0 feet below the design elevation of the top of the dam and is 75 feet long. The approach channel is short and concrete paved. The exit channel is a continuation of the chute. A bridge extends across the spillway crest. It is supported by two piers.
Book Synopsis National Dam Inspection Program. SCS Dam PA-445 (NDI Number PA-00099 DER Number 64-176), Delaware River Basin, Wayne County, Pennsylvania. Phase I Inspection Report by :
Download or read book National Dam Inspection Program. SCS Dam PA-445 (NDI Number PA-00099 DER Number 64-176), Delaware River Basin, Wayne County, Pennsylvania. Phase I Inspection Report written by and published by . This book was released on 1980 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This flood control dam consists of a 550-foot-long homogeneous earthfill embankment with a maximum height of 31 feet above the streambed. The structure has two spillways. The principal spillway is a drop inlet structure and discharges through a 24-inch diameter pipe. An emergency spillway is constructed in the left abutment. This spillway consists of a grassed earth channel with a bottom channel width of 75 feet. The emergency spillway crest was designed to be 3.5 feet below the top of the dam. Based on the visual inspection, past performance and the available engineering data, the dam and its appurtenant structures appear to be in good condition. The spillway capacity is adequate for passing the full PMF peak inflow without overtopping the dam.
Book Synopsis National Dam Inspection Program. Walker Lake Dam (NDI-ID Number PA-00317, DER-ID Number 52-127), Delaware River Basin, Pike County, Pennsylvania. Phase I Inspection Report by : Hendrik Jongsma
Download or read book National Dam Inspection Program. Walker Lake Dam (NDI-ID Number PA-00317, DER-ID Number 52-127), Delaware River Basin, Pike County, Pennsylvania. Phase I Inspection Report written by Hendrik Jongsma and published by . This book was released on 1980 with total page 73 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 flood control structure is the PMF. The spillway capacity is adequate for passing 71 percent of the PMF peak inflow without overtopping the dam. The spillway, therefore, is considered to be inadequate, but not seriously inadequate.
Book Synopsis National Dam Inspection Program. White Oak Pond Dam (NDI Number PA-00147, DER Number 64-12), Delaware River Basin, Wayne County, Pennsylvania. Phase I Inspection Report by : BERGER ASSOCIATES INC HARRISBURG PA.
Download or read book National Dam Inspection Program. White Oak Pond Dam (NDI Number PA-00147, DER Number 64-12), Delaware River Basin, Wayne County, Pennsylvania. Phase I Inspection Report written by BERGER ASSOCIATES INC HARRISBURG PA. and published by . This book was released on 1980 with total page 75 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 good condition. In accordance with the Corps of Engineers' evaluation guidelines, the size classification of this dam is intermediate and the hazard classification is high. The spillway capacity combined with the available storage is sufficient to pass the PMF (Probable Maximum Flood) peak inflow without overtopping the dam. The spillway is therefore considered to be adequate. These calculations are based on a maximum stoplog elevation of 11.7 feet above the wetwell floor.
