SIOUX CITY— The Woodbury County Board has taken a step down what could be a 10-year journey for another Interstate 29 interchange. The board committed nearly $181,000 for its share of a study that will cost $600,000. Local officials have been asking the Iowa Transportation Department since 2012 for an exit between mile markers 138 and 140 to help boost economic development. They cite traffic near Southbridge Business Park, which is being built south of Sioux Gateway Airport.
Department rules require a justification report before interchanges can be built. The interchange cost was estimated at $20 million in 2013.
County consultant Terry Lutz told the board that even if state approves the project, it would take eight to 10 years before it opens to motorists.