Magnolia Park-CS080425 (2)Page 1 of 1
Ken Griffin -Drainage Diversion /Magnolia Park
From: Ken Griffin
To: Brian Thompson
Date: 4/251200810:16 AM
Subject: Drainage Diversion /Magnolia Park
CC: Clay Phillips; Rhonda Adloo
Brian
I have reviewed the drainage design for Magnolia Park and have the following observations to offer:
1) The west side of Magnolia Park appears to be the high point in the drainage area. This means that
Magnolia Park's drainage flows east to the channel and the property to the west drains west and south,
away from Magnolia Park;
2) Neither the Magnolia Park channel nor the culverts beneath Waverly Lane or Levee Place were
designed to accept water from the west of Magnolia Park.
If the property to the west still desires to pursue discharging their drainage to the east and into
Magnolia Park, they would need to hire an engineer that specializes in hydraulics and hydrology to
perform a detailed analysis of the entire drainage basin and system to determine if the existing drainage
system and culverts have the capacity to accept rerouted water from the west. The analysis should also
evaluate the impacts of the rerouted water to ensure that there are no adverse impacts to the existing
houses that may lead to potential flooding in the future.
Without the analysis, the only decision that the city can offer in this matter is that the water can not be
rerouted to the Magnolia Park drainage system.
If you have other questions or need additional information, please contact me at your convenience.
Ken Griffin, P. E.
Director of Engineering & Public Works
972-304-3686
kgriffin@ci.coppell.tx.us
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