ST9304-CS 970516 P,O. Box 478
Coppell, Texas 75019
The City With A Beautiful Future 214-462-0022
May 16, 1997
Barbara Reeding
City of Dallas
Dept. of Public Works and Transportation
1500 Marilia
Dallas, Texas 75202
Re: Belt Line Road Project # 490403.1 / 91-829
Denton Tap Road to MacArthur Blvd.
City of Coppell Project ST 93-04
Dear Ms. Reeding:
This letter is written in response to a request by Jill Brim, with Dallas County, concerning
drainage considerations associated with the construction of Belt Line Road from Denton Tap
Road to MacArthur Blvd.
During discussions with representatives of the TU North Lake Power Plant concerning their
property south of Belt Line Road and east of Sanders Loop, it was determined that the property
would remain in an undeveloped state in the foreseeable future. Based on that determination,
the City of Coppell offered no objections to using a nmoff coefficient for undeveloped land in
the design of the drainage from that property. This has allowed the drainage design to have
some flexibility and possibly eliminated one outfall. Based on correspondence from the County,
drainage can now be placed in a proposed system in Belt Line Road and taken further east before
being discharged beneath the DART Rail Line and directly into Grapevine Creek. This design
strategy does not preclude the development of the T.U property at some point in the future with
either detention or retention and/or rerouting water south to North Lake.
I hope this has answered your concerns about the City's position on the drainage design along
the western section of Belt Line Road.
If you should have any questions please feel free to contact this office at (972)304-3679.
Sincerely,
Kenneth M. Griffin, P. E.
Director of Engineering and Public Works
~le/proj/dallasS. 97