Parks Coppell ABQ-CS 930224 u. ,,q M. DOWUEY AND A,S$OCIATEL NC.
CIVIL ENGINEERS
16250 DALLAS PARKWAY SUITE 100
DALLAS. TEXAS 75248
(214) 931-0694 FAX (214) 931-9538
February 24, 1993
Mr. Mike Martin
Engineer Department
City of Coppeli
255 Parkway Boulevard
Coppeli, Texas 75019
Re: Parks of Coppei!
Coppell, Texas
Dear Mike:
Per our conversation today regarding the storm sewer alteration of
Line "H" and Line "I", r have reviewed the revised grades of the
system and offer the following information.
Storm Sewer Line "H" was modified because the inside bottom of the
inlet had a variable elevation. Our previous design set the
flowline of the pipe at the lower inlet flowline elevation.
Attached is the revised storm sewer vertical alignment.
Storm Sewer Line "I" was modified because the stub-out shown as
"exisning" was not in place and the flowline of the inlet at the
rear of said inlet was higher than the previous "As-builts"
2 have reviewed the effect of each revision and find the revisions
adequate regarding required capacity.
If you need additional information please contact me.
Sincerely,
William A. Anderson, P.E.
WAA; j rb
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