A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Based on visual inspection, available records, calculations and past operational performance, Lower Aetna Lake Dam, initially listed as a high hazard potential structure, but reduced to a significant hazard potential structure as a result of this inspection, is judged to be in fair overall condition. The dam's spillways are considered inadequate because a flow equivalent to five percent of the One Hundred Year Flood would cause the dam to be overtopped. To ensure adequacy of the structure, the following actions, as a minimum are recommended: (a) The spillways' adequacy should be determined by a qualified professional consultant engaged by the owner using more sophisticated methods, procedures and studies within six months from the date of approval of this report. Within three months of the consultant's findings, remedial measures to ensure spillway adequacy should be initiated, and (b) Within six months from the date of approval of this report, the following remedial actions should be initiated: (1) Embankment areas behind the culvert wingwalls that have been eroded should be regraded and covered with slope protection, (2) Remove trees on the downstream embankment to lessen the piping potential, and (3) Divert water at the crest of the downstream slope to avoid gullying. Consideration should be given to constructing an extended asphalt lip curb along the rear edge of the pavement to control the run-off.
Based on visual inspection, available records, calculations and past operational performance, Lower Aetna Lake Dam, initially listed as a high hazard potential structure, but reduced to a significant hazard potential structure as a result of this inspection, is judged to be in fair overall condition. The dam's spillways are considered inadequate because a flow equivalent to five percent of the One Hundred Year Flood would cause the dam to be overtopped. To ensure adequacy of the structure, the following actions, as a minimum are recommended: (a) The spillways' adequacy should be determined by a qualified professional consultant engaged by the owner using more sophisticated methods, procedures and studies within six months from the date of approval of this report. Within three months of the consultant's findings, remedial measures to ensure spillway adequacy should be initiated, and (b) Within six months from the date of approval of this report, the following remedial actions should be initiated: (1) Embankment areas behind the culvert wingwalls that have been eroded should be regraded and covered with slope protection, (2) Remove trees on the downstream embankment to lessen the piping potential, and (3) Divert water at the crest of the downstream slope to avoid gullying. Consideration should be given to constructing an extended asphalt lip curb along the rear edge of the pavement to control the run-off.
National Dam Safety Program. Lower Aetna Lake Dam (NJ00418), Delaware River Basin, Tributary to Haynes Creek, Burlington County, New Jersey. Phase 1 Inspection Report
R. Wrubel (author)
1980
85 pages
Report
No indication
English