As river loving folks are well aware there’s been a big push in recent years to remove and breach many of the Northwest’s aging dams, many of which block passage for endangered salmon and steelhead. Today another one of those dams effectively comes down when PacficCorp blows a drain hole under the Condit Dam on the White Salmon in Klickitat County, releasing about 750 acre feet of water in the lower White Salmon. Demolition crews expect the 90 year old reservoir to drain in about six hours. PacificCorp expects the blast to happen around 11:30 a.m. this morning. Watch it go down here.