Flood hazard maps, also known as Flood Insurance Rate Maps, or FIRMs, are important tools in the effort to protect structures in Aiken County. They indicate the risk for flooding throughout Aiken County. However, the current maps are out of date. Some formerly rural areas were never mapped, and other areas haven't been remapped in more than 28 years. Over time, water flow and drainage patterns have changed dramatically due to natural stream erosion, sedimentation, land use and natural forces. The riverine flooding has changed along with these factors.
New digital mapping techniques will provide more detailed, reliable and current data on Aiken County flood hazards. The result will be a better picture of the areas most likely to be impacted by flooding and a better foundation from which to make key decisions.