The hospital in Erwin, Tennessee was destroyed by floodwaters, but no one died. In hindsight, why was it built next to a river?

WHEN IT COMES TO LOCATING THE MAPS USED IN HER BAGS, LINDA SAYS THEY’RE MOSTLY FOUND IN FLEA MARKETS ... I GOT THIS IN TENNESSEE LAST YEAR WHEN I WAS AT A LITTLE SHOP, SO YOU CAN FIND THEM ...