WEBVTT 00:06.644 --> 00:10.308 Let's show you the Corps' 13 Willamette Valley Dams. 00:10.308 --> 00:12.993 To the south, Cottage Grove and Dorena dams. 00:12.993 --> 00:15.817 East and a little south of Eugene are Hills Creek, 00:15.817 --> 00:19.024 Lookout Point, Dexter and Fall Creek dams. 00:19.024 --> 00:22.658 Up along the McKenzie River are Cougar and Blue River dams. 00:22.658 --> 00:25.407 Fern Ridge Dam is west of Eugene. 00:25.407 --> 00:27.410 Green Peter and Foster dams are on the 00:27.410 --> 00:29.503 South Santiam River near Sweethome, 00:29.503 --> 00:31.222 and Detroit and Big Cliff dams 00:31.533 --> 00:33.350 are on the North Santiam River. 00:33.350 --> 00:36.228 Now let's look at how the system works. 00:36.228 --> 00:38.112 The dark blue is the water that 00:38.286 --> 00:40.444 in part is controlled by these dams. 00:40.462 --> 00:43.639 In fact, the Corps works to manage about 77 percent 00:43.639 --> 00:47.557 of the water flowing into the system in the Eugene-Springfield area. 00:47.557 --> 00:49.835 Here's where it gets tricky, though. 00:49.835 --> 00:52.366 See the light blue water on the map? 00:52.366 --> 00:54.927 Those are uncontrolled rivers and streams 00:54.927 --> 00:57.576 that also empty into the Willamette River Basin. 00:57.576 --> 01:00.185 There is no way to manage that water. 01:00.185 --> 01:02.917 It is a carefully monitored system. 01:02.917 --> 01:06.661 Operators releasing water from the dams in the southern part of the valley 01:06.661 --> 01:09.540 must take into account all the uncontrolled water 01:09.540 --> 01:11.790 flowing into the system to the north. 01:11.790 --> 01:14.275 By the time that water gets to Albany, 01:14.275 --> 01:16.840 only about 43 percent is manageable. 01:16.840 --> 01:19.621 In Salem, that drops to 41 percent. 01:19.621 --> 01:21.944 And by the time that water arrives in Portland, 01:21.944 --> 01:25.224 only about 27 percent of the water coming into the system 01:25.224 --> 01:27.962 can actually be managed.