Aug 30 Infrastructure After Nearly Three Decades And $3 Billion, Olmsted Locks And Dam Open On Ohio After nearly 30 years of construction and a budget that rose into the billions, Olmsted Locks and Dam passed the first tow barge through its system at a ceremony Thursday on the Ohio River. The $3 billion infrastructure improvement by the Army Corps of Engineers is the most expensive inland waterway project in U.S. history […] By Becca Schimmel Aug 30 Infrastructure After Nearly Three Decades And $3 Billion, Olmsted Locks And Dam Open On Ohio Becca Schimmel