by Alex Ruppenthal, WTTW

The cost of a long-awaited plan to prevent invasive Asian carp from reaching the Great Lakes has more than doubled to $778 million, federal officials announced last week.

A draft plan from August 2017 estimated the cost at $275 million. But the project will now require additional engineering and design work, along with extra costs for environmental mitigation, according to a new feasibility report published by the U.S. Army Corps of Engineers.

The plan, referred to as the Brandon Road Study, dates to 2015 and has experienced a number of setbacks,

Read more: