Freeport NIP(2.1)-CS 981001 214 ?39 708S
10/'01/98 THU 11:33 FAX 214 77"~7086 HALFF AS$0C ~ ~001
Halff Associates FAX
HALFF DALLAS FAX NO. (214) 739-7088
Fax to Number: 972-304~$70 city of Coppell Engineering Dept.
To: Kent Collin~
From: David Francis D~: 10-1-98
·
Re: Royal Business Center ~ $.E. comer of Royal Ln. & Northpoint Dr. Pages: 4
Copy to Follow
Avo No. 1728~ By Mail?
Yes []
[] Urgent [] For Review I~Please Reply No []
Commenis: Kent, attached are the delineated areas where the wa~r will I
pond and the deplh of water over the inlet due to the 100-year storm. Please refer to the storm drain plan
sl'~_.~ 'C-2~. The storm drainage system to the south was recently upgraded to handle the 100-year flows.
and we are not specifically providing detention for the site, but the water isponding due to the inlet's flow
capacity. Please review the sketches and let me know which areas need to be delineated on the plans
and if this is acceptable. Please call me if you have any ques'dons. Thank You.
DALLAS
FAX NOTE: This cover sheet and its attachments am intended for
the use of the addressee, and may contain information that is
privileged, confidential and exempt from disclosure under
applicable law. You are hereby notified that any unauthorized
dissemination, distribution or copying of this Fax is strictly
prohibited. If you have received this Fax in error, please
notify Halff Associates immediately.
Thank you.
10/01/98 THU 11:35 FAX 214 739 7086 HALFF ASSOC Ig]004
/: .~
~nl'r-o'l
~.- ~~ .
+,C +
/
t
-" C.L. P~PE LINi
x T= 26.79' ,
/ L= 52.36'
10/01/98 /119J 11:34 F.~ 214 739 7086 ItALFF ASSOC ~]002
~ , s,, ss- ,~ (80' ~o~~o - -~
" Lp~ I ' 4
~ lO LINE "A" ~
18" RCP TO BACK_~ EXIST.
T, MATCH INLET FL ~8'~5~8.75
- +
~'~.~. ~T. -
roP=522,g5 ~8~CL. ltIRCP ~ O.51~ -- -
~ _ FL=5~8.7~ ~ _
STAp+iB.7 LINE 'A",/ STA 0+85.9
IN'ST/~LL ~5' BEND INSTALL 45' B,:ND
FL 18":518.85 FL 18":519.19
= ~ INSTILL 45' BEND II
FL 1 '=519.39
~ STA ~?a5.2 UNE 'A'
I CONSfT. q-GRATE INLET .- ,
I TOp=fi22.?o ~'~
L_[L 9.?5 +
o RIDGE
POSf D OFFICE/WAREH :
F.F.-527. !0
+ STA 2+
ONSTRUCT 4-1 INSTALL
0P=522.60 FL
L 18"=519,60
10/01/98 THU 11:34 FAX 214 739 7086 HALFF ASSOC [~003
Q:: L_>
+ ~ STA
td FL=51
~ TA 0+10.2 LAT.
, ~ 0P=522.60
~ L 18'=519.60
· 2.0% INST~
~ FL 18'=~
RIDGE
+
STA
1+06.4 LINE 'B-1 INSTAL
TRUCT 4-GRAT FL
ER LINE CROSSINO.
ITAII"I 2' CLEARANCE "
WATERLINE
STORM SEWER.
0
21' CL. P a 0.8%