The Lewis River Hydroelectric Projects - PacifiCorp

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• Flood management needs –PacifiCorp must maintain “storage”, or reserve space, in the reservoirs to buffer high input or runoff during the winter. • Maintenance needs –The company must take into account regular and unscheduled maintenance needs in planning water releases. In addition to all these parameters, PacifiCorp water managers must also factor in the future, including weather forecasts and energy cost estimates to create daily water release schedules. These provide hour-by-hour plans for operation of the river system and generation. Images: Diagram of the three reservoirs, showing how levels might fluctuate over the course of a day, week, season. Photos of dam operations. Icons representing bullet points. Appendix 1: panel profiles Lewis River Draft I&E Plan page 49
Eagle Cliff Park—Local Welcome Sign Location: Size: Title: Main Content: Eagle Cliff Park TBD Eagle Cliff Park Welcome to Eagle Cliff Park. This facility is owned and operated by the power company PacifiCorp, which provides public recreation opportunities along the reservoirs of the Lewis River. This park and day use area provides access to the Lewis River above the uppermost hydroelectric reservoir, Swift Reservoir. You’re in the shadow of Mt. St. Helens here, with many opportunities for backcountry recreation. Sidebar: One of the oldest known travel routes through this region—the Klickitat Trail—passed close by Eagle Cliff, following the North Fork of the Lewis River from Chelatchie Prairie to Yakama country. This ancient trail provided access to and from the high valleys of the Cascades for local Indian tribes, and had been a long-established trade route by the time railway surveyor George B. McClellan passed this way in 1853, noting flatly that “...the valley of the Cathlapoot’l [Lewis]...is utterly worthless for any purpose.” McClellan’s dour description notwithstanding, the next century saw increased use of the Lewis River route through the Cascades. Indians on their way to and from trading fairs and horse races in the Indian Heaven region... prospectors chasing rumors of gold in the mountain streams... Homesteaders from the lower valley headed upriver to camp, hunt, and fish... through the decades, travelers of all sorts passed by here on what was then a dusty, muddy, and rugged trail. By the 1910s, a wagon road from Woodland had reached the Cougar region—but beyond that point, only bootprints and hoofprints marked the way. The route (then called the Lewis River Trail) became the responsibility of the newly-created US Forest Service. The agency expanded, improved, and maintained the trail as access to remote operations in the upper Lewis River and beyond. These operations included fire prevention, fire detection (the trail was a critical access line for regional fire lookouts), and recreational structures such as trail shelters. Sidebar Caption: Forest Service logo, or photo of Forest Service at work; map of FS sites upriver Today, the Forest Service continues to be a player in the story of the Lewis River. Much of the river’s upper watershed lies on National Forest lands, and many recreationists are drawn to the region by the nearby Mt. St. Helens National Volcanic Monument, administered by the Forest Service. Appendix 1: panel profiles Lewis River Draft I&E Plan page 50
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The Lewis River Hydroelectric Projects - PacifiCorp

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