Courtney Flatt from the Northwest News Network reports. Salmon are now spawning in waters blocked by Grand Coulee Dam. It’s the start of a larger effort to reintroduce salmon into the blocked area. A salmon splashes its tail in a shallow part of the …Courtney Flatt from the Northwest News Network reports. Salmon are now spawning in waters blocked by Grand Coulee Dam. It’s the start of a larger effort to reintroduce salmon into the blocked area. A salmon splashes its tail in a shallow part of the …