Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
National Dam Inspection Program. Laurel Hill Lake Dam (NDI I.D. Number PA-267, Penn.DER Number 56-66) Ohio River Basin. Laurel Hill Creek, Somerset County, Pennsylvania Phase I Inspection Report
Laurel Hill Lake Dam is classified as an intermediate size high hazard dam in accordance with the U.S. Army Corps of Engineers dam safety criteria. Based on the evaluation of available design information and visual observations of conditions as they existed on the dates of the field reconnaissances, the general condition of Laurel Hill Lake Dam is considered to be good. However, the cause and origin of a seepage zone located downstream of the dam embankment could not be conclusively established by visual observation and review of the construction drawings. Therefore, it is recommended that periodic monitoring of the seep be made by the dam owner. The presence of eroded footpaths, animal burrows, cracking and spalling on concrete surfaces, and shallow depression located on the dam crest, are considered minor deficiencies in need of maintenance. Guideline criteria recommend a PMF spillway design flood for intermediate size, high hazard dams. Spillway discharge capacity was found to be seriously inadequate based on the following data: (1) Maximum non-overtopping spillway discharge capacity is 34 percent PMF, (2) Failure of the dam resulting from 37 percent PMF overtopping significantly increases the downstream loss of life and damage potential compared to that which would exist prior to dam failure. Laurel Hill Lake Dam is categorized as unsafe, non-emergency in accordance with recommended criteria.
National Dam Inspection Program. Laurel Hill Lake Dam (NDI I.D. Number PA-267, Penn.DER Number 56-66) Ohio River Basin. Laurel Hill Creek, Somerset County, Pennsylvania Phase I Inspection Report
Laurel Hill Lake Dam is classified as an intermediate size high hazard dam in accordance with the U.S. Army Corps of Engineers dam safety criteria. Based on the evaluation of available design information and visual observations of conditions as they existed on the dates of the field reconnaissances, the general condition of Laurel Hill Lake Dam is considered to be good. However, the cause and origin of a seepage zone located downstream of the dam embankment could not be conclusively established by visual observation and review of the construction drawings. Therefore, it is recommended that periodic monitoring of the seep be made by the dam owner. The presence of eroded footpaths, animal burrows, cracking and spalling on concrete surfaces, and shallow depression located on the dam crest, are considered minor deficiencies in need of maintenance. Guideline criteria recommend a PMF spillway design flood for intermediate size, high hazard dams. Spillway discharge capacity was found to be seriously inadequate based on the following data: (1) Maximum non-overtopping spillway discharge capacity is 34 percent PMF, (2) Failure of the dam resulting from 37 percent PMF overtopping significantly increases the downstream loss of life and damage potential compared to that which would exist prior to dam failure. Laurel Hill Lake Dam is categorized as unsafe, non-emergency in accordance with recommended criteria.
National Dam Inspection Program. Laurel Hill Lake Dam (NDI I.D. Number PA-267, Penn.DER Number 56-66) Ohio River Basin. Laurel Hill Creek, Somerset County, Pennsylvania Phase I Inspection Report
J. D. Hainley (Autor:in) / T. E. Debes (Autor:in)
1980
76 pages
Report
Keine Angabe
Englisch