Des Moines International Airport is preparing to construct a new terminal to replace its existing building in a phased project estimated to cost as much as $769.8 million.
The airport is the largest in Iowa. Its current 12-gate terminal building dates to 1948, and with the airport projecting demand for 17 gates by 2032 and 19 by 2042, airport leaders say it has reached the end of its useful life. The plan calls for a three-phase project to break up costs and allow the first phase of work to fit current available funding while still addressing increased capacity needs.