Advantage-CS 960702July 2, Igg6 Consulting Engineers - Planners ·
Pm No. 214-304-3§73
Pm No. 214-304-3 514
Mr. O~ Smith
Pax No. 817.43 i-2773
KXlfTING INLET ADJACENT TO BUILDING Bp COLONIAL SELF
810 DENTON TAP ROAD, COPPELL, T~XAS
~ to the dralnase plans of the addition for .which tho inlet was.construeted, the
Ollttc~ty ofthe exiadn~ inlet is 115.2 o.f.s. The inlet was d~mi~ned, to accede a 100
ymnr runoff.of 113.0 o.f.s.. All ofthls runoffwas from the South;
Our development intercepts the majority of that runotfin the propose~l 5,5' x 5.5' drop
inim whlGh is to Dc constructed along the new Southern property line: ThJs inlet is
r, ammo*asd to tho exlstinlg storm sewer system with n 3§" tLC.P.. With the new inlet the
100 year nmoffto the existing inlet has been reduced to 17.7 c.f.s, or:about 1:5% of
Onc~ t~ proposed storm sewer system, and the re~,radin8 ofthe ar~ito the $ou~ is
(~3n~ then the Southern opening xo the extstln8 MJet can be elosed off without any
dmtl~tll eflbOts, provided that the area behlfld buildi~ "13".is i~rlded so that water is
~ away from buildin8`'B'' and towards the renudnlnlg openin~sl
If you have any other questions please feel Dee to contact me at your .earliest convenience.
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3~ N.w, Se~n~ Slreet-Sulte 5 · OranO Prairie. Texas 7fi050 · (214) 2~-0600 .* Fax (~ 14) 253-9