A System’s Approach to Tactical Planning at Rock Island Dam

摘要

Public Utility District Number 1 (PUD) of Chelan County owns and operates the RockIsland Hydroelectric Project (Rock Island Dam) on the upper Columbia River inWashington State.Chelan’s Juvenile Fish Protection Program (JFPP) developed a Tactical Plan to 1)define the Rock Island Dam system, 2) its priorities and objectives and 3) provide aframework for understanding operational constraints and impacts of implementing thedraft Habitat Conservation Plan (HCP) provisions as part of the Endangered SpeciesAct (ESA) requirements and Clean Water Act (CWA) requirements (e.g., total dissolvedgas).The Tactical Plan is being used to provide a uniform and consistent basis for guidingtechnical studies and evaluating the impact of system changes. The heart of theTactical Plan is a system model - a graphical representation of the Rock Island Damsystem. This system model is used to help the PUD:· Educate staff about the impacts of their decisions within the JFPP on the system’sobjectives.· Plan JFPP studies and implementation activities (e.g., prioritize data collectionefforts, minimize the costly collection of unnecessary data).· Conduct scenario analyses to understand the impacts of different options on theHCP, CWA and operational objectives.The system model developed as part of the Tactical Plan is the first step in developing alarger and more comprehensive computerized (I.e., dynamic) system model of RockIsland Dam. The PUD hopes that the system model can be used to discuss projectissues internally with a common understanding as well as externally with regulators andagencies.