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Prior to the 1913 flood, the Dayton area had suffered major floods nearly every other decade, with major water flows in 1805, 1828, 1847, 1866, and 1898. [6] Most of downtown Dayton was built in the Great Miami River's natural flood plain, which seemed advantageous in the early years when cities depended on rivers for transportation needs.
The Grand River went above bankfull on the night of March 24, rising slowly for the next four days. It broke the previous high-water mark by over 60 cm (2.0 ft), and was considered a once in 100 year flood. Over one-half of the population on the west side of the river was inundated. On the east bank of the river, numerous factories went underwater.
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 years. [ 2 ] Such maps are used in town planning , in the insurance industry, and by individuals who want to avoid moving into a home at risk of flooding or to know how to protect their property.
Updated maps from Williamson County show an increase of 6,000 structures in the 100-year flood plains. The last information available was from 1994. ... its flood plain map to include 1,300 miles ...
The Great Flood of 1913 severely affected Columbus, Ohio. The area most affected was Franklinton , also known as the Bottoms, for its low elevation near the Scioto River . Among many infrastructure projects, a 7.2-mile floodwall was built from 1993 to 2004 to protect most of Franklinton from flooding.
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 ...
Flood-related death estimates in Indiana range from 100 to 200. More than a quarter million people were left homeless. The death toll from the flood of 1913 places it second to the Johnstown Flood of 1889 as one of the deadliest floods in the United States. The flood remains Ohio's largest weather disaster.
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 ...