Description: ERCA Maximum Observed Flooding
Flood levels observed due to ice jamming in Feb 1985. They were staked and serveyed by ERCA staff where the observed flood levels surpassed the 1:100 yr flood line. In some cases, these levels are above the Hurricane Hazel flood levels.
Source: Deliniation of areas with maximum observed flooding for specific events. Does not include the Harrow flood of 1989. Data created by Geordon Harvey (ERCA) ~ 2000.
Description: Floodprone Areas for the County of Essex.
Based on the 1:100 Year ERCA Flood Line. Subdivided by TYPE between Great Lakes Floodprone areas and inland Floodplain Development Control Areas (FDCA). Intended for use in Official Plans. Appropriate scale range for viewing this dataset is 1:50,000 to 1:200,000.
Description: This is a polygon layer showing the extent of historically observed flooding within the jurisdiction of the Lower Thames Valley Conservation within Essex County.
Description: Floodprone Areas for the County of Essex.
Based on the 1:100 Year ERCA Flood Line. Subdivided by TYPE between Great Lakes Floodprone areas and inland Floodplain Development Control Areas (FDCA). Intended for use in Official Plans. Appropriate scale range for viewing this dataset is 1:50,000 to 1:200,000.
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