A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Upper Aetna Lake Dam is a 32-year old earth roadway embankment approximately 230 feet long with a timber box spillway and bridge located about 60' from the west abutment. The embankment carries an asphalt paved two-lane road across the dam structure. The three-sided timber box spillway is affixed to the upstream face of the pile-supported one-span timber bridge and has a total crest length of 35.67 feet with one set of removable flashboards 3 feet 4 inches wide. Upper Aetna Lake Dam is assessed to be in a fair overall condition and is recommended to be downgraded to a significant hazard category. Overtopping would not exacerbate the danger to downstream property or human life and no detrimental findings were uncovered to question the structural stability. Remedial actions to be undertaken in the future consist only of regrading and seeding the minor erosion on the embankment sideslopes. The dam has an inadequate spillway capacity, being able to accommodate only 5% of the 100 year design flood. Further hydraulic studies are recommended.
Upper Aetna Lake Dam is a 32-year old earth roadway embankment approximately 230 feet long with a timber box spillway and bridge located about 60' from the west abutment. The embankment carries an asphalt paved two-lane road across the dam structure. The three-sided timber box spillway is affixed to the upstream face of the pile-supported one-span timber bridge and has a total crest length of 35.67 feet with one set of removable flashboards 3 feet 4 inches wide. Upper Aetna Lake Dam is assessed to be in a fair overall condition and is recommended to be downgraded to a significant hazard category. Overtopping would not exacerbate the danger to downstream property or human life and no detrimental findings were uncovered to question the structural stability. Remedial actions to be undertaken in the future consist only of regrading and seeding the minor erosion on the embankment sideslopes. The dam has an inadequate spillway capacity, being able to accommodate only 5% of the 100 year design flood. Further hydraulic studies are recommended.
National Dam Safety Program. Upper Aetna Lake Dam (NJ 00420), Delaware River Basin, Sharps Branch of Haynes Creek, Burlington County, New Jersey. Phase I Inspection Report
R. Wrubel (author)
1980
67 pages
Report
No indication
English