DR9303-CS 910501M E M 0
TO: Alan D. Ratliff, City Manager
VIA: Gary L. Sieb, Director of Planning and Community Services
FROM: UU M. Shohre Daneshmand, Acting City Engineer
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
DRAINAGE
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IN 11
OFFSITE DRAINAGE AREA MAP
CITY OF COPPELL TOPO. SCALE: I" ; 400'
1985
DRAINAGE AREA CALCULATIONS
AREA
AREA
C.
"CA"
*TC
INTENSITY Q100
COMMENTS
NO.
(ACRES)
(MIN.)
(IN /HR.)
(CFS)
1.
2.93
0.45
1.3185
15/10
9.6/11.6
12.7/15.3
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
4.
2.81
0.45
1.2645
15/10
9.6/11.6
12.1/14.7
5.
3.09
0.45
1.3905
15/10
9.6/11.6
13.3 /16.1
AREA 1 -5: LINE "A"
6.
0.23
0.45
0.1035
15/10
9.6/11.6
1.0/ 1.2
7.
2.60
0.45
1.1700
15/10
9.6/11.6
11.2/13.6
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
9.6/11.6
7.6/ 9.2
10.
1.05
0.45
0.4725
15/10
9.6/11.6
4.5/ 5.5
11.
2.71
0.45
1.2195
15/10
9.6/11.6
11.7/14.2
12.
5.14
0.45
2.3130
15/10
9.6/11.6
22.2/26.8
13.
2.70
0.45
1.2150
15/10
9.6/11.6
11.7/14.1
14.
3.00
0.45
1.3500
15 /1O
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 "8"
17.
3.13
0.45
1.4085
15/10
9.6/11.6
13.5/16.3
18.
4.32
0.45
1.9440
15/10
9.6/11.6
18.7/22.6
19.
1.35
0.45
0.6075
15/10
9.6/11.6
5.8/.7.1
,
20.
3.22
0.45
1.4490
15/10
9.6/11.6
13.9/16.8`
21.
3.57
0.45
1.6065
15/10
9.6/11.6
15.4 /18.6
AREA 17 -21: LIKE •C`
22.
1.13
0.45
0.5085
15/10
9.6/11.6
4.9/ 5.9.
- TO EX 54" RCP -.
OS1.
33.47
0.45
15.0615
15
9.6
144.6'.
OS2.
13.84
0.45
6.2280
15
9.6
59.8
OS1'- 062: LINE •6"
OS3.
0.86
0.45
0.3870
15
9.6
r 3.7
- TO EX 54" RCP -
• DOTS:
10 MIN.
TC FOR
LOCAL INLET CAPACITY
NOTES:
15 MIN.
TC FOR
STORM SEVER CAPACITY
1. CONTRACTORS AR>t
FOR
�SINA
OBTAINING CURRENT CI COPPELL
-
SPECIFICATtONS AND CONSTRUCTION
STANDARD DRAWINGS FOR USE ON THIS
PROJECT.
2. ALL CONSTRUCTION MATERIALS
AND
CITY OF COPPELL MWOR -
DRAINAGE AREA MAP
'SPL►CIFICATIONS AS APPLICABLE.
-- .: -- -
PECAN
HOLLOW
ADDITION
CITY OF COPPELL
DALLAS COUNTY, TEXAS
DAN M. DOWDEY ; & A&SOCIATE9
162 O DALLAS PKWY. (214)931 -0694 DALLAS TEX 5
DESIGN DRAWN tHECKEd DATE I SCALE I JOB S 91
WAA J MA DMD 3/21/90 1" = 100 89 -100 , >�
Y: '