DULUTH, MN (KDAL) - The Radisson Hotel will be closed until at least Apr. 1 following a Wednesday water main break, according to its website. It's likely the hotel will remain closed longer than that, however, as the Duluth News Tribune reported Sunday that hotel officials said there was no timeline yet to reopen as damage assessment continues. The hotel's water main break flooded the basement and the tunnel to the public library under Superior St. It caused damage to electrical service, and about 80 guests had to be put up in other area hotels.