Pecan Hollow-CS 910501 MEMO
TO: Alan D. Ratliff, City Manager
VIA: ~ary L. Sieb, Director of Planning and Community
Services
FROM: M. Shohre Daneshmand, Acting City Engineer,~2
SUBJECT: Drainage Complaint at Alex and LodGe Road
DATE: May 1, 1991
As per your request, we have conducted a site investigation at the above
referenced location. Since the origin of this drainage concern is
unknown, we were unable to obtain a specific complaint. Our comments,
therefore, are provided in a General form. As per the attached drainage
map, it appears that vacant properties along the unimproved section of
LodGe Road are partially draining toward and/or alonG improved LodGe
Road. Please note that the referenced vacant properties are currently
proposed as residential subdivisions, and improvement to the remainder of
LodGe Road would be part of such development.
Also, we are presently working with Mr. Doyle Cameron, Camero Development
Group, the Pecan Hollow developer, in an attempt to address this drainage
concern, if in fact it relates to the Pecan Hollow Addition development.
We will continue our review and search of this problem and will keep you
informed. Please advise if you happen to know the name and address of the
citizen with this complaint.
Should you have any questions in this regard, please contact Larry Davis
or myself.
cc: Larry Davis, Construction Inspector J'
DRAINAGE
1985
AREA AREA "C" "CA" *TC INTENSITY QI00 COM~I~NTS
-' ! -[[ I. ...-! il
OFFSITE DRAINAGE AREA M~
CITY OF COPPELL TO~. SCALE: I" = 400'
1985
DRAINAGE AREA CALCULATIONS
AREA AREA 'C' "CA" *TC INTENSITY Q100 COMMENTS
NO. ( ACRES ) ( MI N. ) ( IN/HR. ) ( CFS )
2. 0.73 0.45 0.3285 15/10 9.6/11.6 3.2/ 3.8
3. 2.86 0.45 1.2870 15/10 9.6/11.6 12.4/14.9
5. 3.09 0.45 1.3905 15/10 9.6/11.6 13.3/16.1 AREA 1-5: LINE ·A ·
8. 2.19 0.45 0.9855 15/10 9.6/11.6 9.5/11.4 ·
9. 1.76 0.45 0. 7920 15/10 9.6 411.6 7.6/ 9.2 :
10. 1.05 0.45 0.4725 15/10 9.6/11.6 4.5/ 5.5
12. 5.14 0.45 2.3130 15/10 9.6z11.6 22.2/26.8
14. 3.00 0.45 1.3500 15/10 9.6/11.6 13.0/15.7
15. 1.88 0.45 0.8460 15/10 9.6~11.6 8.1/ 9.8
16. 2.42 0.45 1.0890 15/10 9.6/11.6 10.5/12.6 AREA 6-16: LINE
18. 4.32 0.45 1.9440 15/10 9.6t11.6 18.7/22.6
20. 3.22 0.45 1.4490 15/10 9.6/tl.6 13.9/16.8
21. 3.57 0.45 1.6065 15/10 9.6/11.6 15.4/18.6 AREA 17-21: LINE
22. 1.13 0.45 0.5085 15/10 9.6/11.6 4.9/ 5.9 - TO EX 54" ECP -.
OSl. 33.47 0.45 15.0615 15 9.6 144.6 . ."
0S2. 13.84 0.45 6.2280 15 9.6 59.8 OS1 '- O~2: LINE
OS3. 0.86 0.45 0.3870 15 9.6 3.7 - TO EX 54" RCP -
* ~OT~: 10 NIN. TC FOR LOCAL INLET CAPACITY
~T~S.' 15 NIN. TC FOR STORM SEWER CAPACITY
OBTAINING CURRENT CITY"'I~"COPI~LL .... "'
SPECIFICATIONS AND CONSTRUCTION
STANDARD DRAWINGS FOR USE ON TIIIS
2. ALL CON~I'RUCTION MATERIALS AND
e~ oF co~'P~, wp/o. ~..P AREA MAP
.... PECAN HOLLOW ADDITION
,...: .:.,, CITY OF COPPELL
DAN M. DOWDEY--& ASSOCIATES
~-f"~" .... '/.' ' 16Z.~0 DALLAS PKWY. (214) 9:51-0694 DALLAS .
" fDESIGNIDRAW. ~-HECKEd DATE I S__c_~_L_E ._!_ ..... J_O.e_ .... l SHE.~: