Lake Ellyn Park 2013 Master Plan

2. site analysis & existing conditions
3. Lake, landform, & hydrology
Lake Ellyn Park lies in the valley between Lake Road to
the east, Glenbard West High School to the south, and a
residential neighborhood to the west. The parkland slopes
gently towards the lake from the east and the west. The
Ruth Candy Parkway and Sam Perry Preserve are lower
than the lake elevation (approximately 703 el.).
The 10-acre Lake Ellyn is a manmade lake that serves as
a regional stormwater detention facility for a 614-acre
watershed that includes a significant portion of the Village
of Glen Ellyn. Lake Ellyn was historically spring-fed,
although its hydrology was altered as part of the Village’s
stormwater management system. There are two inflow
points at the south end of the lake, and an outflow at the
north. Events greater than an approximately XX-year
event rise above the banks and begin to spill out into
the lawn areas surrounding the lake. The 100-year storm
event floods an area of approximately 20 acres, including
Duchon Field and the boathouse.
A Hydrologic and Hydraulic study of Lake Ellyn was
prepared by RHMG Consulting Engineers for the Village
of Glen Ellyn and was completed in April 2012. The
drainage area and flood statistics above were taken from
that study. The purpose of the study was to assess the
capacity of the Lake and to identify alternatives to prevent
the Lake from overtopping the dam during the 100-year
Lake Ellyn Park
Lake Ellyn Watershed
linden drainage area
Lake Ellyn
lyn
lake road drainage area
main inlet drainage area
Village of Glen Ellyn
Lake Ellyn watershed diagram
18 Glen Ellyn Park District