National Dam Safety Program. Ashland Dam (PA-00671), Schuylkill River Basin, Little Mahanoy Creek, Schuylkill County, Pennsylvania. Phase I Inspection Report,
Abstract
Ashland Dam is a rolled earth embankment with a concrete core wall founded approximately 10 feet into rock. The embankment is approximately 69 feet high at its maximum section with a length of approximately 500 feet impounding a reservoir of approximately 331 acre-feet. The upstream slope is riprapped from the crest to the toe. The downstream slope contains a rock toe drain and is grass covered. The embankment was constructed over an existing 20 feet high dam which became the upstream toe of the new embankment. The principal intake system consists of two pipes located at the base of the dam which are used for water supply and for blow-off. The larger pipe, 16 inches I.D., feeds water into a treatment building at the downstream toe of the embankment. The smaller, 12 inch I.D., pipe also feeds water through the pumphouse and discharges into a blow-off pit approximately 40 feet below the structure. Excess water is discharged over the spillway located on the left abutment. The concrete ogee spillway is approximately 63 feet wide and discharges into the natural stream channel about 400 feet below the dam centerline.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1978
- Accession Number
- ADA068652
Entities
People
- John H. Frederick Jr.
- William S. Gardner