National Dam Inspection Program. Howells Run Dam (ID Number PA 434), Ohio River Basin, Howells Run, Cambria County, Pennsylvania. Phase I Inspection Report.

摘要

Howells Run Dam consists of an earth embankment 670 feet long with a maximum height of 63 feet from the downstream toe. A 50-foot-wide concrete chute spillway located on the right abutment (looking downstream) serves as both primary and emergency spillway for the reservoir. Based on the evaluation of the conditions as they existed on the dates of inspection (May 16 and 30, 1978) and as revealed by visual observations, the condition of Howells Run Dam is assessed to be good. The spillway has the recommended capacity to pass the probable maximum flood. Therefore, the spillway is adequate. Operation of the outlet pipe gate was not observed. The owner reports that the gate has never been operated and therefore its operational condition is questionable. It is recommended that the owner monitor the uncontrolled seeps on each side of the spillway channel and take necessary remedial measures if seeps are found to be increasing.