WHY IS SAN JOAQUIN COUNTY GETTING NEW FLOOD INSURANCE RATE MAPS?
San Joaquin Countys current maps are out of date. Some formerly rural areas were never mapped in detail, and other areas havent been re-mapped in more than 26 years. Over time, water flow, levee conditions and drainage patterns have changed due to erosion, land use and natural forces. The likelihood of flooding in certain areas has changed along with these factors.