The primary purpose
of this project was to provide flood relief for homes within
the Kendallwood/Westbrooke Subdivisions. Many homes
within these subdivisions have experienced flooding during
significant storm events in the past. This was evidenced
during the last flood event which occurred in June 1989.
Flooding occurs when the existing stream channels are overloaded
during storms. This project was designed to provide
another conduit to bypass excess stream flows around the
flood prone area and to hold some flood waters in a detention
basin until the downstream system can accommodate them.
The project consists of the following:
- The
replacement of existing undersized culverts at 12 Mile Road
near Dunckel School and at Sprucewood between Aranel and
Chesterbrook south of 13 Mile Road in the Westbrooke Subdivision.
- Channel
improvements along the existing Minnow Pond Drain on the
Dunckel School property.
- Completion
of the construction of a detention basin (24 million gallons)
to temporarily store flood waters on the City-owned property
located on the southeast corner of 13 Mile Road and Farmington
Road.
- Construction
of storm sewer lines to bypass flood waters from the Farmington
Road (7' diameter) and 13 Mile Road (8' diameter) crossings
of the Minnow Pond Drain to the detention basin and the
Kendallwood Drive bypass line.
- An
outlet pipe (8.5' diameter) to convey flood waters from
the basin and the bypass lines to the existing Minnow Pond
Drain located on the Dunckel School property. This
outlet pipe has been commonly referred to as the Kendallwood
Drive by-pass line.
- HRC
analyzed soil type of the proposed basin and found it to
be suitable for sand subbase for other City paving projects,
so the mass excavation of the pond was done by contractors
at no cost to the City, resulting in a cost savings of approximately
$2.5 million.
This
project has now been in service and operating satisfactory
for a long period of time.