1868 (21.5ft) It wiped out most of early industry in the valley sparing only the flour mill. It destroyed the lower end of Main Street and killed a number of people living in Ellicott City.
1923 (9ft)
1972 (14.5ft) Hurricane Agnes flooded downtown Main Street area extensively destroying the Ellicott brothers’house and the mill.
1975 (9ft)
Ellicott City Flooding Historical Dates
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