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National Dam Inspection Program Wilmore Dam Ndi Id Number 435 Ohio River Basin North Branch Of Little Conemaugh River Cambria County Pennsylvania Phase I Inspection Report
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Book Synopsis National Dam Inspection Program. Wilmore Dam (NDI ID Number 435), Ohio River Basin, North Branch of Little Conemaugh River, Cambria County, Pennsylvania. Phase I Inspection Report by : D'APPOLONIA CONSULTING ENGINEERS PITTSBURGH PA.
Download or read book National Dam Inspection Program. Wilmore Dam (NDI ID Number 435), Ohio River Basin, North Branch of Little Conemaugh River, Cambria County, Pennsylvania. Phase I Inspection Report written by D'APPOLONIA CONSULTING ENGINEERS PITTSBURGH PA. and published by . This book was released on 1978 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Wilmore Dam is a masonry-gravity structure approximately 800 feet long with a maximum height of 40 feet from the downstream toe. Based on evaluation of the conditions as they existed on the dates of inspection (June 7 and 12, 1978) and as revealed by visual observations, the condition of Wilmore Dam is assessed to be good. The spillway does not have the recommended capacity to pass the probable maximum flood without overtopping. However, the dam is a masonry structure, and overtopping by the probable maximum flood would not significantly affect the stability of the dam. Therefore, the spillway capacity is considered to be adequate. However, during unusually heavy runoff, when overtopping might occur, an around-the-clock surveillance plan should be implemented to detect possible problems, such as rapid erosion of the abutments. It is recommended that the owner should develop a formal warning system to alert the downstream residents in the event of emergencies.
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 Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1979-04 with total page 1022 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis National Dam Inspection Program. Mill Creek Number 2 Dam (NDI-735), Ohio River Basin, Mill Creek, Cambria County, Pennsylvania. Phase I Inspection Report by : D'APPOLONIA CONSULTING ENGINEERS INC PITTSBURGH PA.
Download or read book National Dam Inspection Program. Mill Creek Number 2 Dam (NDI-735), Ohio River Basin, Mill Creek, Cambria County, Pennsylvania. Phase I Inspection Report written by D'APPOLONIA CONSULTING ENGINEERS INC PITTSBURGH PA. and published by . This book was released on 1978 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam consists of an earth embankment approximately 520 feet long with a maximum height of 45 feet from the downstream toe. The combined primary and emergency spillway is located on the right abutment (looking downstream). The flow through the spillway is controlled by a broad-crested weir 82.5 feet wide and located at a level three feet nine inches below the dam crest. The spillway chute consists of a rectangular masonry channel which terminates in a stilling basin at the toe of the dam. Mill Creek No. 2 Dam is located approximately two miles above the mouth of Mill Creek, a tertiary tributary of the Conemaugh River, approximately three miles southwest of Johnstown in Yoder Township, Cambria County, Pennsylvania. Downstream from the dam, Mill Creek flows through a steep and narrow valley for about two miles where it joins Bens Creek, which in turn flows to Stoney Creek south of Johnstown. There are approximately 50 mobile homes and 30 homes in the lower one-mile reach of Mill Creek. It is estimated that in the event of failure there would be large loss of life and property damage, both in Mill Creek Valley and Bens Creek Valley and further downstream.
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. Colver Dam (NDI I.D. PA-0437, DER I.D. 11-20), Ohio River Basin, North Branch Blacklick Creek, Cambria County, Pennsylvania. Phase I Inspection Report by :
Download or read book National Dam Inspection Program. Colver Dam (NDI I.D. PA-0437, DER I.D. 11-20), Ohio River Basin, North Branch Blacklick Creek, Cambria County, Pennsylvania. Phase I Inspection Report written by and published by . This book was released on 1981 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam is classified as a small dam in the significant hazard category. In view of the size of the dam which is closer to the lower limit of the small size classification, the 100-year flood was selected as the spillway design flood. The 100-year flood peak was determined according to the recommended procedure and was found to be in excess of the spillway capacity. Therefore, the capacity of the spillway is classified as inadequate. The following recommendations should be implemented immediately on continuing basis: (1) The owner should determine the nature and extent of modifications needed and implement these measures to provide adequate spillway capacity; (2) Around-the- clock surveillance should be provided during unusally heavy rainfall and/or runoff. In addition, a formal warning system should be developed to alert downstream residents in the event of an emergency; and (3) The owner should develop and follow a formal operating and maintenance plan and should inspect the dam regularly.
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. Shirf's Run Dam. Ohio River Basin, Unnamed Tributary of North Branch Blacklick Creek, Cambria County, Pennsylvania (NDI I.D. Number PA-00438, DER I.D. Number 11-71). Phase I Inspection Report by : Lawrence D. Andersen
Download or read book National Dam Inspection Program. Shirf's Run Dam. Ohio River Basin, Unnamed Tributary of North Branch Blacklick Creek, Cambria County, Pennsylvania (NDI I.D. Number PA-00438, DER I.D. Number 11-71). Phase I Inspection Report written by Lawrence D. Andersen and published by . This book was released on 1980 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shirf's Run Dam consists of an earth embankment approximately 320 feet long with a maximum height of 15 feet from the downstream toe and a crest width of 10 feet. The upstream side of the dam is protected by riprap and the downstream slope is covered with grass. The spillway discharge facilities for the dam consist of an earth channel located at the right abutment. The outlet facilities consist of a 12-inch cast-iron pipe encased in concrete through the embankment. Based on the evaluation of the existing conditions, the condition of Shirf's Run dam is considered to be good. The only condition noted which requires attention is the lack of adequate erosion protection on the left side of the emergency spillway channel against the embankment. This condition is considered to pose breach potential in the event of large flows through the spillway. The flood discharge capacity of the dam was evaluated according to the recommended procedure and was found to pass approximately 50 percent of the probable maximum flood (PMF) without overtopping the embankment.
Book Synopsis National Dam Inspection Program. Williams Run Dam (NDI ID 432), Ohio River Basin, Williams Run, Cambria, Pennsylvania. Phase I Inspection Report by : D'APPOLONIA CONSULTING ENGINEERS INC PITTSBURGH PA.
Download or read book National Dam Inspection Program. Williams Run Dam (NDI ID 432), Ohio River Basin, Williams Run, Cambria, Pennsylvania. Phase I Inspection Report written by D'APPOLONIA CONSULTING ENGINEERS INC PITTSBURGH PA. and published by . This book was released on 1978 with total page 70 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 a hazard to human life or property.
Book Synopsis National Dam Inspection Program. Water Company Number 4, NDI Number Pa-507. Ohio River Basin, Point Lookout Branch, Washington County, Pennsylvania. Phase I Inspection Report by : Bernard M. Mihalcin
Download or read book National Dam Inspection Program. Water Company Number 4, NDI Number Pa-507. Ohio River Basin, Point Lookout Branch, Washington County, Pennsylvania. Phase I Inspection Report written by Bernard M. Mihalcin and published by . This book was released on 1978 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Dam Inspection Act, Public Law o2-367 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 is to determine if the dam constitutes a hazard to human life or property.
Book Synopsis National Dam Inspection Program. Lloydell Dam (ID Number PA 500), Ohio River Basin, South Fork Little Conemaugh, Cambria County, Pennsylvania. Phase I Inspection Report by : D'APPOLONIA CONSULTING ENGINEERS PITTSBURGH PA.
Download or read book National Dam Inspection Program. Lloydell Dam (ID Number PA 500), Ohio River Basin, South Fork Little Conemaugh, Cambria County, Pennsylvania. Phase I Inspection Report written by D'APPOLONIA CONSULTING ENGINEERS PITTSBURGH PA. and published by . This book was released on 1978 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Lloydell dam is a masonry-gravity structure approximately 700 feet long with a maximum height of 43 feet from the downstream toe. Based on the evaluation of the conditions as they existed on the dates of inspection (May 18 and 30, 1978) and as revealed by visual observations, the condition of Lloydell Dam is assessed to be good. The spillway does not have the recommended capacity to pass the probable maximum flood without overtopping. However, the dam is a masonry structure, and overtopping by the probable maximum flood would not significantly affect the stability of the dam. Therefore, the spillway capacity is considered to be adequate. However, during unusually heavy runoff, when overtopping might occur, an around-the-clock surveillance plan should be implemented to detect possible problems, such as rapid erosion of the abutments. It is recommended that the owner should develop a formal warning system to alert the downstream residents in the event of emergencies. It is also recommended that the owner should take necessary measures to improve the accessibility of the site during high flows.
Book Synopsis National Dam Inspection Program. Storage Dam (NDI I.D. Number PA-388 DER I.D. Number 24-47), Ohio River Basin, Whetstone Branch of Little Toby Creek, Elk County, Pennsylvania. Phase I Inspection Report by : Lawrence D. Anderson
Download or read book National Dam Inspection Program. Storage Dam (NDI I.D. Number PA-388 DER I.D. Number 24-47), Ohio River Basin, Whetstone Branch of Little Toby Creek, Elk County, Pennsylvania. Phase I Inspection Report written by Lawrence D. Anderson and published by . This book was released on 1979 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Storage Dam consists of an earth embankment approximately 500 feet long with a maximum height of 36 feet from the downstream toe and a crest width of approximately 15 feet. The appurtenant structures of the dam consist of a combined primary and emergency spillway located on the left abutment (looking downstream) and outlet works near the right abutment. Based on the evaluation of the existing conditions, the condition of Storage Dam is considered to be good. Numerous seeps were observed along the left abutment, but these seeps are not considered to be a threat to the integrity of the embankment. However, a slump and an associated wet area were observed along the toe of the dam near the left abutment. This condition should be investigated and necessary repairs performed. The flood discharge capacity of the Storage Dam spillway was evaluated according to the recommended procedure and it was found to be 40 percent of the probable maximum flood (PMF) without overtopping the embankment. Therefore, according to the recommended criteria, the flood discharge capacity of the dam is classified to be inadequate.
Book Synopsis National Dam Inspection Program. Bear Rock Number 1 Dam (NDI I.D. Number PA-00439, DER I.D. Number 11-2), Ohio River Basin, Bear Rock Run, Cambria County, Pennsylvania. Phase I Inspection Report by : Lawrence D. Andersen
Download or read book National Dam Inspection Program. Bear Rock Number 1 Dam (NDI I.D. Number PA-00439, DER I.D. Number 11-2), Ohio River Basin, Bear Rock Run, Cambria County, Pennsylvania. Phase I Inspection Report written by Lawrence D. Andersen and published by . This book was released on 1980 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bear Rock No. 1 Dam consists of an earth embankment approximately 560 feet long with a maximum height of about 26 feet from the downstream toe and a crest width of about 8 feet. The upstream and downstream faces and crest of the dam are covered with riprap. The flood discharge facilities of the dam consist of a stone masonry structure with a flow width of 58 feet. The discharge from the spillway flows into an unprotected discharge channel which follows the left side of the valley. A dike is provided along the right side of the spillway discharge channel to prevent flows towards the toe of the dam. The outlet facilities consist of a 16-inch cast-iron blow-off pipe and 10- and 12-inch cast-iron supply pipes. Based on the evaluation of the existing conditions, the condition of Bear Rock No. 1 Dam is considered to be unsafe/nonemergency due to the seriously inadequate spillway capacity (30% of PMF). The condition of the embankment is considered to be fair.
Book Synopsis National Dam Inspection Program. Bear Rock Number 2 Dam (NDI I.D. Number PA-0441, DER I.D. Number 11-3) Ohio River Basin, Bear Rock Run, Cambria County, Pennsylvania. Phase I Inspection Report by : Lawrence D. Andersen
Download or read book National Dam Inspection Program. Bear Rock Number 2 Dam (NDI I.D. Number PA-0441, DER I.D. Number 11-3) Ohio River Basin, Bear Rock Run, Cambria County, Pennsylvania. Phase I Inspection Report written by Lawrence D. Andersen and published by . This book was released on 1980 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bear Rock No. 2 Dam consists of an earth embankment approximately 760 feet long with a maximum height of about 42 feet from the downstream toe and a crest width of about 6 feet. The crest and upstream and downstream faces of the dam are covered with riprap. The flood discharge facilities of the dam consist of a 33-ft. rectangular stone masonry overflow spillway located on the left abutment (looking downstream). The spillway is 33 feet wide and about 4 feet deep at the control section and uniformly converges into the spillway discharge channel. The spillway discharge channel is a stone masonry chute, which terminates at a plunge pool. A dike along the right side of the spillway discharge channel is provided to prevent flow towards the toe of the dam. The outlet facilities consist of a 16-inch cast-iron blow-off pipe and a 12-inch cast-iron supply pipe. Based on the evaluation of the existing conditions, the condition of Bear Rock No. 2 Dam is considered to be unsafe/nonemergency. The structural condition of the embankment is considered to be good. The spillway capacity was evaluated according to the recommended procedure and was found to pass 30 percent of the probable maximum flood (PMF) without overtopping the embankment.
Book Synopsis National Dam Inspection Program. Howells Run Dam (ID Number PA 434), Ohio River Basin, Howells Run, Cambria County, Pennsylvania. Phase I Inspection Report by : D'APPOLONIA CONSULTING ENGINEERS PITTSBURGH PA.
Download or read book National Dam Inspection Program. Howells Run Dam (ID Number PA 434), Ohio River Basin, Howells Run, Cambria County, Pennsylvania. Phase I Inspection Report written by D'APPOLONIA CONSULTING ENGINEERS PITTSBURGH PA. and published by . This book was released on 1978 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: Howells Run Dam consists of an earth embankment 670 feet long with a maximum height of 63 feet from the downstream toe. A 50-foot-wide concrete chute spillway located on the right abutment (looking downstream) serves as both primary and emergency spillway for the reservoir. Based on the evaluation of the conditions as they existed on the dates of inspection (May 16 and 30, 1978) and as revealed by visual observations, the condition of Howells Run Dam is assessed to be good. The spillway has the recommended capacity to pass the probable maximum flood. Therefore, the spillway is adequate. Operation of the outlet pipe gate was not observed. The owner reports that the gate has never been operated and therefore its operational condition is questionable. It is recommended that the owner monitor the uncontrolled seeps on each side of the spillway channel and take necessary remedial measures if seeps are found to be increasing.
Book Synopsis National Dam Inspection Program. Little Blue Run Dam (NDI ID Number PA 917, DER ID Number 4-49), Ohio River Basin, Little Blue Run, Beaver County, Pennsylvania. Phase I Inspection Report by : Lawrence D. Anderson
Download or read book National Dam Inspection Program. Little Blue Run Dam (NDI ID Number PA 917, DER ID Number 4-49), Ohio River Basin, Little Blue Run, Beaver County, Pennsylvania. Phase I Inspection Report written by Lawrence D. Anderson and published by . This book was released on 1979 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the evaluation of the existing conditions on March 14 and April 16, 1979, the condition of Little Blue Run Dam is considered to be good. No conditions were noted at this time that would significantly affect the structural performance of the dam. The flood discharge facilities for the dam were designed to pass the probable maximum flood (PMF) without overtopping the embankment. Therefore, according to the recommended criteria, the flood discharge facilities of the dam are adequate. Presently, the pool elevation is approximately 170 feet below the dam crest level. The pool elevation is expected to reach spillway crest level in about the year 2010. The following recommendations should be implemented on a continuing basis: (1) The cracking observed on the crest should continue to be evaluated by the design engineers. Also, attention should be given to the slump and seepage observed on the left abutment. Erosion ditches on the right abutment should be filled; and (2) A formal warning system should be developed to alert the downstream residents in the event of emergencies.
Book Synopsis National Dam Inspection Program. Penelec Retention Dam. (NDI I.D. Number PA-00809, PennDer I.D, Number 32-78) Ohio River Basin, Tributary to the Conemaugh River, Indiana County, Pennsylvania. Phase I Inspection Report by : Bernard M. Mihalcin
Download or read book National Dam Inspection Program. Penelec Retention Dam. (NDI I.D. Number PA-00809, PennDer I.D, Number 32-78) Ohio River Basin, Tributary to the Conemaugh River, Indiana County, Pennsylvania. Phase I Inspection Report written by Bernard M. Mihalcin and published by . This book was released on 1980 with total page 96 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 good condition. The size classification of the facility is small and its hazard classification is considered to be high. In accordance with the recommended guidelines, the Spillway Design Flood (SDF) for the facility ranges between the 1/2 PMF (Probable Maximum Flood) and the PMF. Due to the high potential for damage to downstream structures and loss of life, the SDF for the facility is considered to be the PMF. Results of the hydrologic and hydraulic analysis indicate the facility will pass and/or store a flood of PMF magnitude. Consequently, the spillway is considered adequate.
