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National Dam Inspection Program North Fork Dam Nds Id Number 234 Ohio River Basin North Fork Bens Creek Somerset County Pennsylvania
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Book Synopsis National Dam Inspection Program. North Fork Dam. (NDS ID Number 234). Ohio River Basin, North Fork Bens Creek, Somerset County, Pennsylvania by : D'APPOLONIA CONSULTING ENGINEERS PITTSBURGH PA.
Download or read book National Dam Inspection Program. North Fork Dam. (NDS ID Number 234). Ohio River Basin, North Fork Bens Creek, Somerset County, Pennsylvania written by D'APPOLONIA CONSULTING ENGINEERS PITTSBURGH PA. and published by . This book was released on 1978 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The inspection was performed pursuant to the authority granted by The National Dam Inspection Act, Public Law 92-367, to the Secretary of the Army, through the Corps of Engineers, to conduct inspections of dams throughout the United States. The purpose of this inspection is to determine if the dam constitutes hazard to human life or property.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1979 with total page 1186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis National Dam Inspection Program. Lake Somerset Dam (NDS I.D. Number PA-00229, PennDer I.D. Number 56-89), Ohio River Basin, East Branch of Coxes Creek, Somerset County, Pennsylvania. Phase I Inspection Report by : Bernard M. Mihalcin
Download or read book National Dam Inspection Program. Lake Somerset Dam (NDS I.D. Number PA-00229, PennDer I.D. Number 56-89), Ohio River Basin, East Branch of Coxes Creek, Somerset County, Pennsylvania. Phase I Inspection Report written by Bernard M. Mihalcin and published by . This book was released on 1979 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the visual inspection, operational history, and available engineering data, the dam, despite being well maintained, is considered to be in poor condition. Observations made during the visual inspection suggest that the embankment may be structurally unsafe as extensive areas of seepage were noted on the downstream embankment slope and immediately below the toe area to the right of the outlet conduit. Seepage conditions became evident shortly after reservoir filling and have persisted in spite of the installation of a remedial sand drain system near the toe. Failure of the embankment does not appear imminent and the condition is presently considered non-emergency. It is recommended that the owner immediately develop and implement a warning system to notify downstream inhabitants should hazardous conditions develop. Included in the plan should be provisions for around-the-clock surveillance of the facility during periods of unusually heavy precipitation.
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 906 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis National Dam Inspection Program. Brookville Water Works Dam (NDI ID Number PA-422, DER ID Number 33-3) Ohio River Basin, North Fork Creek, Jefferson County, Pennsylvania. Phase I Inspection Report by : D'APPOLONIA CONSULTING ENGINEERS INC PITTSBURGH PA.
Download or read book National Dam Inspection Program. Brookville Water Works Dam (NDI ID Number PA-422, DER ID Number 33-3) Ohio River Basin, North Fork Creek, Jefferson County, Pennsylvania. Phase I Inspection Report written by D'APPOLONIA CONSULTING ENGINEERS INC PITTSBURGH PA. and published by . This book was released on 1980 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the evaluation of the existing conditions, Brookville Water Works Dam was found to be in good condition and adequately maintained. The flood discharge capacity of the dam was evaluated according to the recommended procedure and was found to pass less than the 100-year flood without overtopping the embankment portion of the dam. The recommended spillway capacity range is between the 100-year flood and 50 percent of the probable maximum flood (PMF). Considering the low downstream damage potential, the lower limit of the recommended spillway capacity range was considered to be applicable to this dam. Therefore, the flood discharge capacity is classified to be inadequate. However, considering that the slopes of the earth embankment are protected with riprap and the dam has a concrete core wall, and further that the dam has withstood overtoppings in the past without breaching, overtopping of the earth embankment during the passage of 100-year flood can be permitted. Therefore, enlargement of the spillway is not considered to be justified. (Author).
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 1979 with total page 1368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis National Dam Inspection Program. North Fork Dam (NDS ID Number PA-28 DER ID Number 53-57 SCS ID Number PA-406), Susquehanna River Basin, White Branch of North Fork, Potter County, Pennsylvania. Phase I Inspection Report by : Kuang-hwei Chuang
Download or read book National Dam Inspection Program. North Fork Dam (NDS ID Number PA-28 DER ID Number 53-57 SCS ID Number PA-406), Susquehanna River Basin, White Branch of North Fork, Potter County, Pennsylvania. Phase I Inspection Report written by Kuang-hwei Chuang and published by . This book was released on 1979 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: North Fork Dam is a homogeneous earthfill dam 622 feet long and 58 feet high. The principal spillway is a two-stage drop inlet spillway with a 30' diameter reinforced concrete pipe. The riser unit is 2.5 feet by 7.5 feet and is 33 feet high. The emergency spillway is located on the left abutment and is formed by a trapezoidal shaped open cut in glacial sand clay and gravel. The bottom width of the spillway channel is 100 feet. The spillway exit channel is 482 feet long and discharges on the left hillside below the toe of the dam. The inspection and review of data of North Fork Dam did not reveal any problems which require emergency action. The dam appears to be stable, well maintained, safely operated and in good condition. However, the spillway and reservoir are capable of controlling 60% of Probable Maximum Flood without overtopping the earth embankment. Based upon criteria established by the Corps of Engineers, the spillway is termed inadequate, but not seriously inadequate. In addition, the earth berm in the emergency spillway exit channel is low and overtopping of the berm during flood conditions will cause erosion of the embankment/abutment contact. This spillway berm will be overtopped at approximately 25% of the PMF.
Book Synopsis National Dam Inspection Program. Gallo Dam (NDS I.D. Number PA-00233, Pender I.D. Number 56-91) Ohio River Basin, Beaverdam Run, Somerset County, Pennsylvania. Phase I Inspection Report by : GAI CONSULTANTS INC MONROEVILLE PA.
Download or read book National Dam Inspection Program. Gallo Dam (NDS I.D. Number PA-00233, Pender I.D. Number 56-91) Ohio River Basin, Beaverdam Run, Somerset County, Pennsylvania. Phase I Inspection Report written by GAI CONSULTANTS INC MONROEVILLE PA. and published by . This book was released on 1979 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gallo Dam is a 29-foot high earth embankment approximately 690 feet long (including spillway). The embankment is reportedly comprised of 3 sections which include an impervious core, a semi-pervious upstream section and a pervious downstream section. The facility is served by a chute channel spillway, with discharges controlled by a free overfall, concrete weir structure. The spillway is located near the right abutment, and has a crest length of 39 feet. In addition, the facility is equipped with a 18-inch diameter steel pipe encased in concrete used as a low level outlet as well as a 16-inch diameter steel siphon which was installed in 1973.
Book Synopsis National Dam Inspection Program. Deer Valley Lake Dam (NDS I.D. Number PA-00230, PennDer I.D. Number 56-76), Ohio River Basin, Cove Run, Somerset County, Pennsylvania. Phase I Inspection Report by : Bernard M. Mihalcin
Download or read book National Dam Inspection Program. Deer Valley Lake Dam (NDS I.D. Number PA-00230, PennDer I.D. Number 56-76), Ohio River Basin, Cove Run, Somerset County, Pennsylvania. Phase I Inspection Report written by Bernard M. Mihalcin and published by . This book was released on 1979 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a visual inspection, operational history, and available engineering data, the dam is considered to be in fair condition. Structural deficiencies noted during the inspection include an inoperable drawdown mechanism, seepage and ponded conditions at the downstream toe, dense overgrowth (bushes, weeds, small trees) on the down stream slope, and minor concrete deterioration in the spillway. The size classification of the facility is intermediate and its hazard classification is considered to be significant. In accordance with recommended guidelines, the Spillway Design Flood (SDF) for this facility is 1/2 the Probable Maximum Flood (PMF). Results of the hydrologic and hydraulic analysis indicate that the facility can accommodate approximately 32 percent of the PMF and/or 64 percent of SDF (1/2 PMF). Thus, the spillway system is considered inadequate, but not seriously inadequate.
Book Synopsis National Dam Inspection Program. PA-647 Dam (NDI ID Number PA-812, DER ID Number 63-76), Ohio River Basin, Robinson Fork, Washington County, Pennsylvania. Phase I Inspection Report by : D'APPOLONIA CONSULTING ENGINEERS INC PITTSBURGH PA.
Download or read book National Dam Inspection Program. PA-647 Dam (NDI ID Number PA-812, DER ID Number 63-76), Ohio River Basin, Robinson Fork, Washington County, Pennsylvania. Phase I Inspection Report written by D'APPOLONIA CONSULTING ENGINEERS INC PITTSBURGH PA. and published by . This book was released on 1979 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: The PA-647 dam is one of the seven flood control structures in the Wheeling Creek watershed. The dam consists of an earth embankment approximately 500 feet long with a maximum height of 95 feet from the downstream toe and a crest width of 15 feet. The flood discharge facilities for the dam consist of a drop inlet type primary spillway located near the left abutment (looking downstream) and an emergency spillway on the right abutment. Based on the evaluation of the conditions as they existed on the dates of inspection and as revealed by visual observations, the condition of PA-647 dam is considered to be good. The spillway capacity is classified to be adequate according to the recommended criteria.
Book Synopsis National Dam Inspection Program. Laurel Hill Creek Dam, (NDS I.D. Number PA-00235, PennDer I.D. Number 56-85) Ohio River Basin, Laurel Hill Creek, Somerset County, Pennsylvania. Phase I Inspection Report by : Bernard M. Mihalcin
Download or read book National Dam Inspection Program. Laurel Hill Creek Dam, (NDS I.D. Number PA-00235, PennDer I.D. Number 56-85) Ohio River Basin, Laurel Hill Creek, Somerset County, Pennsylvania. Phase I Inspection Report written by Bernard M. Mihalcin and published by . This book was released on 1979 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the visual inspection, operational history, and available engineering data, the dam and its appurtenances are considered to be in good condition. The size classification for the facility is intermediate and the hazard classification is high. In accordance with the recommended guidelines, the Spillway Design Flood (SDF) for the facility is the Probable Maximum Flood (PMF). Results of the hydrologic and hydraulic analysis indicate that the facility is capable of passing and/or storing only 36 percent of the PMF. The analysis also indicates that spillway discharges are controlled by the downstream valley capacity when the flow over the weir exceeds approximately 3 feet (10 feet below the embankment) after which the pool level and tailwater will rise at roughly the same rate. Thus, failure from overtopping is essentially precluded and the spillway is considered inadequate, but not seriously inadequate. The consequences of embankment inundation by tailwater and subsequent rapid drawdown are uncertain; although, it is noted that portions of the downstream slope are designated as pervious fill and rock toe on the design drawings. This construction is favorable with respect to rapid drawdown response; however, thorough inspection of the embankment should be performed during and after inundation.
Book Synopsis National Dam Inspection Program. Dutch Fork Dam (NDI ID Number PA-490), Ohio River Basin, Dutch Fork, Washington County, Pennsylvania. Phase I Inspection Report by : D'APPOLONIA CONSULTING ENGINEERS INC PITTSBURGH PA.
Download or read book National Dam Inspection Program. Dutch Fork Dam (NDI ID Number PA-490), Ohio River Basin, Dutch Fork, Washington County, Pennsylvania. Phase I Inspection Report written by D'APPOLONIA CONSULTING ENGINEERS INC PITTSBURGH PA. and published by . This book was released on 1979 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Dutch Fork Dam consists of an earth embankment approximately 460 feet long with a maximum height of 42 feet from the downstream toe and a crest width of 12 feet. The flood discharge facilities for the dam consist of a combined primary and emergency spillway located on the left abutment (looking downstream). The spillway structures of the dam consist of a concrete overflow section, a trapezoidal concrete-lined spillway discharge channel which terminates in a concrete-lined plunge pool at the toe level of the dam near the left abutment. The overflow structure of the spillway is an 89-foot-long concrete weir, trapezoidal in cross section, located at an elevation approximately 10 feet below the dam crest. The outlet works consist of a reinforced concrete box culvert and a control tower located at the center of the embankment. The conduit is equipped with trask rack devices on the upstream end with a stilling basin at the discharge end. The flow through the conduit is controlled by stop logs located in the control tower. The stop logs divide the control tower into inflow and outflow chambers. The stop logs in the control tower extend from the invert elevation of the box culvert to the normal pool elevation. The flow entering into the intake chamber of the control tower through the upstream portion of the outlet conduit rises to the normal pool elevation, spills over the stop logs into the outflow chamber, which in turn discharges into the downstream portion of the outlet conduit. The lake can be drawn down below the normal pool elevation by removing the stop logs. The control tower is not equipped with any mechanical device for removing the stop logs. This outlet system constitutes the emergency drawdown facility for the dam. (Author).
Book Synopsis Government Reports Annual Index: Keyword A-L by :
Download or read book Government Reports Annual Index: Keyword A-L written by and published by . This book was released on 1979 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis National Dam Inspection Program. Bigan Dam (NDI ID Number PA-237, DER ID Number 56-94), Ohio River Basin, Sandy Run, Somerset County, Pennsylvania. Phase I Inspection Report by :
Download or read book National Dam Inspection Program. Bigan Dam (NDI ID Number PA-237, DER ID Number 56-94), Ohio River Basin, Sandy Run, Somerset County, Pennsylvania. Phase I Inspection Report written by and published by . This book was released on 1981 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bigan Dam appears to be in poor condition and modifications to the dam have apparently been in progress for several years. The reservoir pool is maintained at a reduced level due to a directive from the Commonwealth pending the completion of design modifications to the structure. Due to the questionable condition of the earthen embankment section near the right abutment, the static stability of the structure is questionable. The spillway for the dam is a temporary structure, and a new spillway is planned at the dam. The owner should be urged to complete the construction of the facility as soon as possible. The completion of the structure should include an assessment of the earthen embankment section near the right abutment, and the stability of the section should be evaluated.
Book Synopsis National Dam Inspection Program. Bigby Run Dam (NDI ID Number PA-226, DER ID Number 56-21), Ohio River Basin, Bigby Creek, Somerset County, Pennsylvania. Phase I Inspection Report by :
Download or read book National Dam Inspection Program. Bigby Run Dam (NDI ID Number PA-226, DER ID Number 56-21), Ohio River Basin, Bigby Creek, Somerset County, Pennsylvania. Phase I Inspection Report written by and published by . This book was released on 1981 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: The assessment of Bigby Run Dam is based upon visual observations made at the time of inspection, review of available records and data, hydraulic and hydrologic computations and past operational performance. The Bigby Run Dam appears to be in fair condition. Maintenance is considered fair. The concrete spillway is deteriorating with marked deterioration on the right spillway wall. Minor seepage was observed at the toe of the dam, adjacent to the left abutment contact. Seepage was estimated at 2 to 5 gallons per minute. The seepage should be monitored. The Bigby Run Dam is a high hazard-small size dam. The recommended Spillway Design Flood (SDF), for a dam of this size and classification, is in the range of 1/2 PMF to PMF. Since the Bigby Run Dam just meets the minimum criteria; and since the dam is located in a rural area suggesting only appreciable economic loss; compliance with the current practice of the Baltimore District Corps of Engineers leads to the selection of the 1/2 PMF as the Spillway Design Flood (SDF).
Book Synopsis National Dam Inspection Program. Pine Creek Dam (North Park Lake) (NDI I.D. Number PA-467, DER I.D. Number 2-26), Ohio River Basin, Pine Creek, Allegheny County, Pennsylvania. Phase I Inspection Report by : Lawrence D. Anderson
Download or read book National Dam Inspection Program. Pine Creek Dam (North Park Lake) (NDI I.D. Number PA-467, DER I.D. Number 2-26), Ohio River Basin, Pine Creek, Allegheny County, Pennsylvania. Phase I Inspection Report written by Lawrence D. Anderson and published by . This book was released on 1979 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Pine Creek Dam consists of an earth embankment approximately 1130 feet long with a maximum height of about 33 feet. As built, the crest of the dam was 60 feet wide with a 2 horizontal to 1 vertical sslope on both the upstream and downstream faces. Over the years, significant fill has been placed on the downstream side of the embankment, increasing the crest width to 300 to 400 feet. A two-lane roadway crosses the crest of the dam. Near the left abutment (looking downstream) the side slope of the spillway discharge channel defines the toe of the present embankment. However, for the remaining major portion of the embankment, no discernible demarcation exists between the embankment and the natural ground that can be identified as the toe of the embankment. Fill placed on the downstream side of theembankment gradually merges to the right abutment. The flood discharge facilities for the dam consist of a combined primary and emergency spillway located near the left abutment. The spillway structures include an ogee overflow section, circular arc in plane view, which discharges into a rectangular concrete discharge channel. A single-span highway bridge crosses the spillway discharge channel, approximately 70 feet downstream from the crest of the overflow section. The crest of theogee overflow section of the spillway is located at an elevation approximately 10 feet below the low point on the crest of the dam.
Book Synopsis National Dam Inspection Program. Hinckston Run Dam (NDS I.D. Number PA-00430, PennDer I.D. Number 11-9), Ohio River Basin, Hinckston Run, Cambria County, Pennsylvania. Phase I Inspection Report by : Bernard M. Mihalcin
Download or read book National Dam Inspection Program. Hinckston Run Dam (NDS I.D. Number PA-00430, PennDer I.D. Number 11-9), Ohio River Basin, Hinckston Run, Cambria County, Pennsylvania. Phase I Inspection Report written by Bernard M. Mihalcin and published by . This book was released on 1979 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a visual inspection, review of post-construction engineering studies, and available engineering data, the Hinckston Run Dam is considered to be in good condition. Deficiencies were limited to general deterioration of the concrete spillway section, and apparent inoperability of the valves within the intake tower. The size classification of the facility is intermediate, and the hazard classification is considered to be high. In accordance with the recommended guidelines, the Spillway Design Flood (SDF) for the facility is the Probable Maximum Flood (PMF). Results of the hydrologic and hydraulic analysis indicate the facility can pass and/or store about 38 percent of the PMF prior to overtopping of the embankment. Overtopping, even under floods of PMF magnitude, is not expected to cause failure of the unusually massive embankment configuration which is composed of erosion-resistant, hot-poured slag. Thus, the spillway system is considered to be inadequate, but not seriously inadequate.
