NBCNews.comExplosion at Washington State Dam Injures Six EmployeesNBCNews.comSix employees were injured in an explosion at Priest Rapids Dam along the Columbia River in central Washington state, authorities said. IMAGE: Priest Rapids Dam. Priest Rapids Dam in Grant County, Washington. Grant County, Washington, Public Utility ...6 injured in explosion at Priest Rapids Dam in WashingtonOregonLive.comSix dam workers wounded in explosion in Grant CountyThe Seattle Times6 injured after explosion at dam in Grant CountyKING5.comQ13 FOX -KOIN.com -OPB Newsall 26 news articles »