SBA, the Small Business Administration, has a video that walks a business owner affected by a disaster like the flood that hit Hickman County. It details disaster assistance available through SBA to homeowners and businesses. http://training.sba.gov:8000/response
SBA also has a Fact Sheet About U.S. Small Business Administration Disaster Loans that summarizes its home disaster loans, business physical disaster loans and economic injury disaster loans.
Another thing to remember is that casualty loss can possibly be claimed as a deduction on federal income tax returns. For some information on how this deduction can be claimed, see the “Casualty Loss for Flood Victims” Victims bulletin.