 In 1962, Turkey Creek, which bisects the street, flooded and damaged the downtown commercial district.A suburban shopping mall on the city's west side also jeopardized businesses downtown, and the city developed a plan to modernize Main Street by creating an "overhead sidewalk", enabling businesses to form on the second floor of existing buildings while serving as a canopy for passage below.Building owners spent nearly $2 million ($16 million today) upgrading their properties and linking them to ramps, while the government contributed over $5 million to build the elevated walkways.