Flash flood watch in effect for parts of eastern Idaho due to erosion of Portneuf Dam Spillway

Flash flood watch in effect for parts of eastern Idaho due to erosion of Portneuf Dam Spillway

Spillway damage at Chesterfield Reservoir | National Weather Service in Pocatello CHESTERFIELD — A flash flood watch is in effect for Chesterfield and the surrounding communities. The National Weather Service in Pocatello tells EastIdahoNews.com the flash flood watch is tied to concerns about the potential failure of the Portneuf Dam Spillway on the Chesterfield Reservoir. The spillway is a side area where water flows out of the reservoir when t…

Flash Flood Watch issued for the potential failure of the Portneuf Dam Spillway

National Weather ServiceSpillway at Chesterfield Reservoir, May 31, 2023. National Weather Service National Weather Service Dennis Hill Dennis Hill CHESTERFIELD, IDAHO (KIFI) - The National Weather Service in Pocatello has issued a Flash Flood Watch for the potential failure of the Portneuf Dam Spillway on Chesterfield Reservoir. The watch impacts the Portneuf River through Friday. They say the failure of the spillway could result in flash fl…