AMES, Iowa – April 2, 2013 – It looks like the weather is finally changing from winter to construction season in Iowa. The Iowa Department of Transportation is poised to tackle construction work in every corner of the state. Depending on the remaining outcomes of bid lettings through June, the Iowa DOT will have let out to bid approximately $600 million in Primary Highway System construction work during the 2013 calendar year. Iowa’s counties and cities will also be setting up work zones in many areas in an effort to improve Iowa’s transportation system.