More than 400 people gave input on 19 different design proposals through an online survey via MoDOT's "I-229: Moving Forward" web site. Proposals in seven different categories included reconstructing the interstate at-grade or on slightly elevated structures in flood-prone areas; removing the top deck and building another elevated structure next to the existing one; decommissioning the interstate and using local streets or a scenic parkway through downtown St. Joseph, and; routing I-229 into Kansas along a 2700-foot long bridge across the Missouri River.