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FIRMs display areas that fall within the 100-year flood boundary. Areas that fall within the boundary are called special flood hazard areas (SFHAs) and they are further divided into insurance risk zones. The term 100-year flood indicates that the area has a one-percent chance of flooding in any given year, not that a flood will occur every 100 ...
On September 26, Georgia Insurance Commissioner John Oxendine raised the estimated cost to $500 million with the potential for it to rise. Some 20,000 homes, businesses and other buildings received major damage and 17 Georgia counties received Federal Disaster Declarations. The flood is blamed for at least ten deaths. [1]
For river systems, a 100-year flood is generally expressed as a flowrate. Based on the expected 100-year flood flow rate, the flood water level can be mapped as an area of inundation. The resulting floodplain map is referred to as the 100-year floodplain. Estimates of the 100-year flood flowrate and other streamflow statistics for any stream in ...
A '100-year flood' doesn't mean you'll be flood-free for the next 99 years. Win McNamee/Getty ImagesA 100-year flood, like a 100-year storm, is one so severe it has only a 1% chance of hitting in ...
The county is currently using 500-year flood maps to indicate areas where residents should be ready to evacuate. "We are using the 500-year flood plain maps as kind-of a guide.
The largest county is Baldwin (1,590 sq mi, 4,118 km 2) and the smallest is Etowah (535 sq mi, 1,386 km 2). [8] The Constitution of Alabama requires that any new county in Alabama cover at least 600 square miles (1,600 km 2) in area, effectively limiting the creation of new counties in the state. [9]
New floodplain maps outline hundreds of homes across Davidson County that are eligible for flood insurance policies given their potential risk. Hundreds of Nashville homes added to 100-year ...
Intense rainfall on April 18 and 19 of 75–125 mm (3.0–4.9 in) fell over a short time frame into the residual snowpack, increasing the magnitude of the flood. The flood peaked between April 19 and 22, primarily in the Kalamazoo, Grand, Flint, and Shiawassee River basins. The recurrence interval for this kind of flood is 50–100 years.