Pine Creek Dam – Phases IV and V Investigations

Several investigations have been performed to identify potential voids surrounding the conduit and to provide information for analysis and remediation measures at Pine Creek Dam. This paper focuses primarily on the Phase IV Void Investigation and Backfilling and Phase V Investigation task orders. This paper is a continuation of previous investigations described in a paper submitted and presented during the 2011 ASDSO Dam Safety Conference by author. Background information and potential concerns with the dam, summary of geotechnical investigations that lead to the Phases IV and V investigations and backfilling task orders, description of the investigation methods and field activities, and discussion of the results and conclusions drawn from the investigation are provided.