Mar 20 2019 LOUIS Floodwaters driven by a swift current have torn through and spilled over levees at countless locations across the Midwest, swamping hundreds of homes and businesses. Levees are different than floodwalls, which are typically concrete, but floodwalls are sometimes part of levee systems. The Mississippi and Missouri river basins in the Midwest and South are dotted with thousands of miles of levees. One town that was hit hard was Fremont, Nebraska. Troopers and the National Guard just escorted this caravan of HyVee & Hilland trucks and fuel tankers into Fremont from Omaha. Right now, requests to ALAN are limited because the flood damage is still being evaluated in many areas of the Midwest.