National Dam Inspection Program. Recreation Dam (NDS ID Number PA-00446, PennDER ID Number 14-26), Susquehanna River Basin, Cold Stream, Centre County, Pennsylvania. Phase I Inspection Report.
GAI CONSULTANTS INC MONROEVILLE PA
Pagination or Media Count:
Recreation Dam is an L-shaped earth dam with a measured maximum height of 14.7 feet and a total length of approximately 1,600 feet. The facility is provided with a masonry spillway at the left abutment along its northern section and a diversion canal along its easterly extension. The latter serves to divert acid mine drainage from upstream mined areas around the facility. Based on visual observations, past history, and a hydrologic and hydraulic investigation, the dam and its appurtenances are considered in poor condition. Based on a visual evaluation and past performance the spillway system is considered structurally unsafe but of non-emergency status as the reservoir is completely drawn down. In addition, evaluation of the flashboard system indicated that failure of the flashboards under normal operating procedures could in itself cause serious downstream consequences.
- Civil Engineering