National Dam Inspection Program. Hills Creek Dam (NDS ID Number PA-34. DER ID Number 59-58), Susquehanna River Basin, Hills Creek, Tioga County, Pennsylvania. Phase I Inspection Report.

摘要

Hills Creek Dam is a zoned earthfill dam with a concrete paved upstream slope. The embankment is 587 feet long and has a curved portion in the upstream direction near the left abutment. The embankment is 32 feet high. The upstream slope is 3H:1V and has a concrete paved face on the upper portion of the embankment. The downstream slope is 2H:1V and covered with grass. The crest of the dam is 20.5 feet wide and serves as an access road. The roadway has curbing and guardrails on both sides. Access across the spillway located near the right abutment is by a bridge. The embankment has a central impervious core with pervious upstream and downstream zones. The cutoff trench is 12 feet wide and several feet deep. A 4-inch drain tile located below the downstream portion of the embankement. The spillway is located on the right abutment and consists of a concrete lined chute. The spillway weir consists of a concrete ogee section. The drainline consists of a 30-inch cast iron pipe with a control tower located in the upstream portion of the embankment. Flow in the drainline is regulated at the top of the dam through a stem in the control tower to the valve on the 30-inch line. The drainline discharges into the emergency spillway exit channel. (Author)