Development of a Geomorphology-Based Framework for Cultural Resources Management, Dworshak Reservoir, Idaho

摘要

The U.S. Army Engineer Research and Development Center developed a technical framework for identifying, evaluating, and mitigating impacts to cultural resource sites affected by reservoir operation in the Columbia River System. Components of this framework include geomorphic analysis, resource monitoring, and site protection procedures. Geomorphic analysis encompasses identifying active erosional processes in the vicinity of a reservoir, and defining how these processes will change when operational procedures for the reservoir are changed. Cultural resource monitoring occurs at four levels: compiling existing information; designing a monitoring program based on site- specific data; implementation of monitoring; and synthesis and analysis of data derived from the monitoring. The protection plan can be tailored to either storage-type or run-of-river reservoirs. It may involve long-term protection in place, or removal of endangered cultural sites. Changing operational procedures at each Corps reservoir has the potential to impact cultural resources. Development and implementation of a cultural resource management plan should mitigate some of the negative impacts.