Proposed eastern South Dakota water pipeline would cost at least $8.4 billion

Project is one of several proposals to tap Missouri River

One of several proposed pipeline systems to deliver Missouri River water in South Dakota could cost $8.4 billion to $10 billion, according to estimates shared Monday.

Dakota Mainstem Regional Water System Executive Director Kurt Pfeifle was on a panel speaking to the Rotary Club of Downtown Sioux Falls.

“That includes about a 30 percent contingency, but right now, there’s just so many unknowns,” Pfe…