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National Dam Inspection Program Big Boulder Dam Nds Id Number Pa 00615 Der Id Number 13 93 Delaware River Basin Carbon County Pennsylvania Phase I Inspection Report
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Book Synopsis National Dam Inspection Program. Big Boulder Dam (NDS ID Number PA 00615, DER ID Number 13-93), Delaware River Basin, Carbon County, Pennsylvania. Phase I Inspection Report by : John Boschuk (Jr)
Download or read book National Dam Inspection Program. Big Boulder Dam (NDS ID Number PA 00615, DER ID Number 13-93), Delaware River Basin, Carbon County, Pennsylvania. Phase I Inspection Report written by John Boschuk (Jr) and published by . This book was released on 1979 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: Big Boulder Dam is owned by the Big Boulder Corporation and serves as a recreation lake and water supply for snow making at the lodge. The dam was built in the summer of 1957, and is classified as an 'Intermediate' size dam by virtue of its 1,971 acre-foot maximum storage capacity. Big Boulder Lake is formed by Dam A across Grass Lake Creek and Dam B, a saddle dam on the watershed divide. In the event that Dam B fails, extreme property damage and a possibility for the loss of life exists downstream along Swamp Run, thus classifying the structure as a 'High' hazard dam. The hydrologic and hydraulic calculations presented indicate that the spillway system for this structure is rated as 'Adequate' as it will pass the PMF. On the basis of the visual inspection on 11 May 1979, and review of available construction and design documentation, the dam and appurtenances of Big Boulder Reservoir appear to be functioning satisfactorily with the exception of undesirable seepage at the downstream toe of Dam A. The resident engineer's reports leave some question as to the quality of foundation preparation.
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:
Book Synopsis National Dam Inspection Program. NDS I.D. Number PA-00174. DER I.D. Number 64-174. Delaware River Basin, Greene Dreher Dam, Wayne County, Pennsylvania. Phase I Inspection Report by : WOODWARD-CLYDE CONSULTANTS PLYMOUTH MEETING PA.
Download or read book National Dam Inspection Program. NDS I.D. Number PA-00174. DER I.D. Number 64-174. Delaware River Basin, Greene Dreher Dam, Wayne 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 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Greene-Dreher Dam is a 20-foot high earthern embankment, 1,000 feet long which impounds a 152 acre-foot flood water retention pool. Total estimated volume of fill is approximately 30,000 cubic yards. The zoned embankment was constructed on natural soils without a cutoff trench or a grout curtain. The embankment contains three material zones; Zone 1, a relatively impervious core of silt and and silty sand; Zone 2, composed of silty gravel and silty sand; and an outer shell of Zone 3 material, described as rock larger than 6 inches in diameter. The embankment crest is 12 feet wide at a design settled elevation of 2,036 feet, and both upstream and downstream slopes are 3H:1V. The downstream section of the embankment contains a filter blanket approximately 2 feet thick, 30 feet wide and 320 feet long. The filter blanket is drained by a 6-inch diameter perforated corrugated metal pipe connected to a 6-inch diameter pipe which outlets adjacent to the principal spillway outlet.
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 1980 with total page 1406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 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 by : KIMBALL (L ROBERT) AND ASSOCIATES EBENSBURG PA.
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.
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 199? with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis National Dam Inspection Program. Placid Lake Dam, (NDS I.D Number PA 00616, DER I.D. Number 13-97), Delaware River Basin, Laurel Run, Carbon County, Pennsylvania. Phase I Inspection Report by : Mary F. Beck
Download or read book National Dam Inspection Program. Placid Lake Dam, (NDS I.D Number PA 00616, DER I.D. Number 13-97), Delaware River Basin, Laurel Run, Carbon 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: Placid Lake Dam is owned by the Holiday Pocono Civic Association, Inc. The dam and reservoir are used for recreational purposes. The dam was built as part of a residential community and was completed in 1963. Visual inspection indicates that the spillway system of Placid Lake Dam is in fair condition. It is recommended that the following measures be undertaken immediately. (1) A detailed hydrologic/hydraulic investigation should be performed to determine the best method of increasing the spillway capacity. (2) The flashboard structure should be permanently removed from the top of the spillway drop inlet. (3) An investigation should be made into the actual cause of the apparent piping voids in the vicinity of the inlet conduit. (4) The spillway conduit joints should be sealed and the two downstream pipe lengths should be monitored for possible horizontal movement. (5) Erosion of the upstream face should be halted and the damaged embankment repaired. (6) The inlet sluice gate and the reservoir drain gate valve should be lubricated and exercised on a regular basis to insure their operational status. (7) All trees and brush should be removed from the downstram embankment face, the embankment returned to its original condition, and measures taken to establish a good stand of vegetation. (8) The rock dam in the diversion channel should be removed.
Book Synopsis National Dam Inspection Program. Sand Spring Run Dam. (NDS I.D. Number PA 00614, DER I.D. Number 13-90), Delaware River Basin, Sand Spring Run, Carbon County, Pennsylvania. Phase I Inspection Report by : Mary F. Beck
Download or read book National Dam Inspection Program. Sand Spring Run Dam. (NDS I.D. Number PA 00614, DER I.D. Number 13-90), Delaware River Basin, Sand Spring Run, Carbon 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: Sand Spring Run Dam is a recreational structure located in Hickory Run State Park and owned by the Commonwealth of Pennsylvania. The visual inspection and review of design and construction documentation indicate that the embankment and outlet structure are in good condition, the concrete weir is in fair condition, and the vegetation is in poor condition. The overall assessment is considered to be fairly good at the present time. In accordance with criteria established by Federal (OCE) Guidelines, the recommended spillway design flood for this 'Small' size dam and 'Significant' hazard potential classification is the 100 Year Flood to one-half the Probable Maximum Flood (PMF). As the dam's total capacity in nearer the lower limit of the size classification and because of the limited number of occupied structures downstream, the 100 Year Event would be an adequate spillway design flood. However, one-half the PMF has been used in this case because of the actual spillway capacity. Hydrologic and hydraulic computations presented in Appendix D indicate the spillway is capable of passing the full PMF without overtopping the embankment, resulting in an 'Adequate' spillway classification for this dam.
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. Penn Forest Dam (National I.D. Number PA-00608), Delaware River Basin, Wild Creek, Carbon County, Pennsylvania. Phase I Inspection Report by : John H Frederick (Jr)
Download or read book National Dam Inspection Program. Penn Forest Dam (National I.D. Number PA-00608), 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 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Dam Inspection Act, Public Law 92-367, authorized the Secretary of the Army, through the Corps of Engineers, to initiate a program of inspection of dams throughout the United States. The purpose of the inspection is to determine if the dam constitutes a hazard to human life or property.
Book Synopsis National Dam Inspection Program. NDA I.D. Number PA-00221. DER I.D. Number 9-174. SCS PA-611. Delaware River Basin. Warrington Dam, Bucks County, Pennsylvania. Phase I Inspection Report by : WOODWARD-CLYDE CONSULTANTS PLYMOUTH MEETING PA.
Download or read book National Dam Inspection Program. NDA I.D. Number PA-00221. DER I.D. Number 9-174. SCS PA-611. Delaware River Basin. Warrington Dam, Bucks 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 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: Warrington Dam is a 45 foot high zoned earth embankment, 1,600 feet long, with an emergency spillway at each end of the embankment. The embankment contains an impervious core constructed over a cutoff trench under the dam centerline. The core and cutoff trench are composed of materials classified as silty clays and clayey silts (Zone 1) and encompassed by less permeable materials classified as silty gravels (Zone 2). The upstream slope is 3H:1V with a 10 foot berm at approximately elevation 241.5, normal pool level. The downstream slope is 2.5H:1V with a 12 foot wide berm that serves as an access road along the downstream face of the embankment. The impervious Zone 1 core upstream slope is 2H:1V and the downstream slope is 1.5H:1V. The 14 foot wide embankment crest is at a design elevation of 272.9. Both upstream and downstream slopes are protected with grass. Embankment seepage is controlled by a drain trench near the downstream toe, which contains a 12-inch perforated drain pipe which discharges through the impact basin at the downstream toe.
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. Flat Rock Dam (NDS I.D. Number PA 00896, DER I.D. Number 51-1), Delaware River Basin, Schuylkill River, Montgomery and Philadelphia Counties, Pennsylvania. Phase I Inspection Report by : Mary F. Beck
Download or read book National Dam Inspection Program. Flat Rock Dam (NDS I.D. Number PA 00896, DER I.D. Number 51-1), Delaware River Basin, Schuylkill River, Montgomery and Philadelphia Counties, Pennsylvania. Phase I Inspection Report written by Mary F. Beck and published by . This book was released on 1980 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flat Rock Dam is owned by the Commonwealth of Pennsylvania, and the pool formed is used primarily for recreational purposes. The left abutment of the dam abuts the Manayunk Canal wall owned by the City of Philadelphia. Visual inspection of the exposed sections of the dam, review of available data and simplified calculations presented in Appendix D indicate the dam is in good condition. No data other than Plate 12, Appendix E, were available for the canal wall. Calculations presented in Appendix G indicate the wall is marginally stable under assumed conditions. The results of the stability analysis are at variance with the canal wall's demonstrated performance history.
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. 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 by : Mary F. Beck
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.
Book Synopsis 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 by : Hendrik Jongsma
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.
Book Synopsis National Dam Inspection Program. Christman Dam (NDS I.D. Number 00721 DER I.D. Number 6-460), Delaware River Basin, Tributary to Maiden Creek, Berks County, Pennsylvania. Phase I Inspection Report by : Mary F. Beck
Download or read book National Dam Inspection Program. Christman Dam (NDS I.D. Number 00721 DER I.D. Number 6-460), Delaware River Basin, Tributary to Maiden 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 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Christman Dam is owned and maintained by Mr. Carl W. Christman. The dam was built for recreational purpose. Visual inspection and review of design documentation indicate that the spillway is in fair condition, but the overall evaluation of Christman Dam is poor. The dam is classified as a small size structure with a high hazard classification, consistent with its potential in the event of failure, for extensive property damage and loss of life in the downstream town of Virginville. In accordance with criteria established by Federal (OCE) Guidelines, the spillway design flood is 0.5 to 1.0 PMF (Probable Maximum Flood). As the height of this dam is near the lower limit for small size dams, and the existing total capacity is about one-third of the upper limit, the selected spillway design flood is 0.5 PMF. Hydrologic and hydraulic computations presented in Appendix D indicate that, under existing conditions, the spillway can pass about 0.59 PMF without overtopping the embankment. Under design conditions, the spillway can pass about 0.88 PMF without overtopping. Therefore, the spillway system of this structure is considered to be adequate.
