Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
National Dam Inspection Program. Elroy Face Dam (NDI ID Number PA-00281, DER ID Number 32-56), Ohio River Basin, Unnamed Tributary of Yellow Creek, Indiana County, Pennsylvania. Phase I Inspection Report
Based on the evaluation of the existing conditions, the condition of Elroy Face Dam is considered to be unsafe/nonemergency. A portion of the embankment crest adjacent to the overflow spillway located on the left abutment was found to be about 3 feet below the design crest level and only 8 inches above normal pool level. Relative to this low spot, the capacity of the spillway is estimated to be 66 cfs (approximately 5 percent of the probable maximum flood), which is significantly less than the lower limit of the recommended spillway design flood of the 100-year flood for the dam, based on its size and hazard classification. Therefore, the spillway capacity is considered to be inadequate. A preliminary survey of the crest of the dam indicated that the remaining portion of the crest is also below the design level by about one to two feet. The crest and the downstream face of the dam were found to be covered with thick brush and trees, essentially precluding proper inspection of the embankment. The embankment was generally found to be in poor condition with extensive swampy areas along the downstream toe and shoreline erosion on the upstream side. The spillway structures and the downstream end of the outlet pipe were found to be structurally in poor condition and requiring repairs.
National Dam Inspection Program. Elroy Face Dam (NDI ID Number PA-00281, DER ID Number 32-56), Ohio River Basin, Unnamed Tributary of Yellow Creek, Indiana County, Pennsylvania. Phase I Inspection Report
Based on the evaluation of the existing conditions, the condition of Elroy Face Dam is considered to be unsafe/nonemergency. A portion of the embankment crest adjacent to the overflow spillway located on the left abutment was found to be about 3 feet below the design crest level and only 8 inches above normal pool level. Relative to this low spot, the capacity of the spillway is estimated to be 66 cfs (approximately 5 percent of the probable maximum flood), which is significantly less than the lower limit of the recommended spillway design flood of the 100-year flood for the dam, based on its size and hazard classification. Therefore, the spillway capacity is considered to be inadequate. A preliminary survey of the crest of the dam indicated that the remaining portion of the crest is also below the design level by about one to two feet. The crest and the downstream face of the dam were found to be covered with thick brush and trees, essentially precluding proper inspection of the embankment. The embankment was generally found to be in poor condition with extensive swampy areas along the downstream toe and shoreline erosion on the upstream side. The spillway structures and the downstream end of the outlet pipe were found to be structurally in poor condition and requiring repairs.
National Dam Inspection Program. Elroy Face Dam (NDI ID Number PA-00281, DER ID Number 32-56), Ohio River Basin, Unnamed Tributary of Yellow Creek, Indiana County, Pennsylvania. Phase I Inspection Report
L. D. Andersen (Autor:in)
1980
74 pages
Report
Keine Angabe
Englisch