SS9402-CS 950509May 9, 1995
I-DR
Mr. Kenneth M. Griff'm, P.E.
Assistant City Manager/City Engineer
City of Coppell
255 Parkway Blvd.
P.O. Box 478
Coppell, TX 75019
Re:
Grapevine III, IV and Bethel Road
Project No. 5594-02
Line Capacities
Dear Ken:
The following is a list of the pipe slopes between manholes for each design section for each
project. These slopes, of course, were arrived at based upon a number of factors such as depth
of cut and the known elevations of the beginning and ending points. The pipe diameters were
provided by the City of Coppell.
Please verify that the resulting capacities meet your requirements and expectations for these three
design sections.
Please call me if you should have any questions or need further assistance at (214) 960-4436.
Very truly yours,
HDR ENGINEERING, INC.
Project Manager
HDR Engineering, Inc.
Suite 125
12700 Hillcrest Road
Dallas, Texas
75230-2096
Telephone
214 960-4000
GRAPE~ III
Description
Pipe Corm 0+00 to MH STA 1+01.87
102 LF 24" PVC ~ 0.50%
MH STA 1+01.87 to MH STA 4+50
348 LF 15" PVC ~ 0.69%
MH STA 4+50 to MH STA 8+00
350 LF 15" PVC ~ 0.20%
MH STA 8+00 to MH STA 11+79.27
390 LF 15" PVC ~ 0.20%
MH STA 11+79.27 to MH STA 12+96.58
117 LF 15" PVC ~ 0.20%
MH STA 12+96.58 to MH STA 13+83.07 (STA EQ)
87 LF 15" PVC ~ 0.20%
MH STA EQ 13+98.13 to MH STA 15+54
156 LF 15" PVC ~ 0.50%
MH STA 15+54 to MH STA 20+76.79
523 LF 15" PVC ~ 0.50%
MH STA 20+76.79 to MH STA 24+40.57
364 LF 15" PVC ~ 0.50%
MH STA 24+40.57 to MH STA 25+15.22
75 LF 15" PVC ~ 0.52%
MH STA 25+15.22 to MH STA 26+60.32
145 LF 15" PVC ~ 0.52%
MH STA 26+60.32 to EX MH STA 27+46.67
86 LF 15" PVC ~ 0.52%
EX MH STA 27+46.67 to MH STA 31+23.67
377 LF 15" PVC ~ 0.24%
MH STA 31+23.67 to MH STA 36+21.67
498 LF 15" PVC ~ 0.24%
MH STA 36+21.67 to MH STA 41+01.78
480 LF 15" PVC ~ 0.24%
MH STA 41+01.78 to EX MH STA 41+98.17 (End)
96 LF 15" PVC ~ 0.24%
3.46
1.87
1.87
1.87
1.87
2.95
2.95
2.95
3.01
3.01
3.01
2.04
2.04
2.04
2.04
GRAPEVINE IV
Pipe Conn STA 0+00 to MH STA 0+38.07
38 LF 12" PVC ~ 1.81%
MH STA 0+38.07 to Siphon Box 2+53.07
215 LF 8" D.I. & 215 LF 6" D.I. (Siphon)
Box STA 2+65.40 to MH STA 7+00.91 (Equation)
436 LF 12" PVC ~ 0.30%
EQ MH STA 8+17.18 to MH 13+17.18
500 LF 12" PVC ~ 0.32%
MH STA 13+17.18 to MH STA 15+06.22
189 LF 12" PVC ~ 0.32%
MH STA 15+06.22 to MH STA 17+59.90
254 LF 12" PVC ~ 0.30%
MH STA 17+59.90 to MH STA 20+09.90
250 LF 12" PVC ~ 0.30%
MH STA 20+09.90 to MH STA 22+29.16
219 LF 12" PVC ~ 0.30%
MH STA 22+29.16 to MH STA 22+77.41
49 LF 12" PVC ~ 0.30%
MH STA 22+77.41 to MH STA 24+37.59
160 LF 12" PVC ~ 0.41%
MH STA 24+37.59 to MH STA 26+00.47
163 LF 12" PVC ~ 1.23%
MH STA 26+00.47 to MH STA 28+27.64
227 LF 12" PVC ~ 1.23%
MH STA 28+27.64 to MH STA 30+32.39
205 LF 12" PVC ~ 1.23%
MH STA 30+32.39 to EX MH STA 30+ 45.19 (End)
13 LF 12" PVC ~ 1.23%
3.09
1.20
1.26
1.30
1.30
1.26
1.26
1.26
1.26
1.47
2.55
2.55
2.55
2.55
BETHEL ROAD
Description
Ex MH STA -0+08 to MH STA 0+40
48 LF 12" PVC ~ 0.35%
MH STA 0+40 to Box STA 1+50
110 LF 8" D.I. & 110 LF 6" D.I. (Siphon)
Box STA 1+62.33 to MH STA 5t41.02
379 LF 12" PVC ~ 0.35%
MH STA 5+41.02 to 8+54.57 (Equation)
313 LF 12" PVC ~ 0.35%
MH EQ STA 8+54.53 to MH STA 12+10.00
355 LF 12" PVC ~ 0.20%
MH STA 12+10.00 to MH STA 16+36.00
426 LF 12" PVC ~ 0.20%
MH STA 16+36.00 to MH STA 20+56.00
420 LF 12" PVC ~ 0.20%
MH STA 20+56.00 to MH STA 25+47.35
491 LF 12" PVC ~ 0.20%
MH STA 25+47.35 to MH STA 30+46.68
499 LF 12" PVC ~ 0.20%
MH STA 30+46.68 to MH STA 33+47.78
301 LF 12" PVC ~ 0.20%
MH STA 33+47.78 to MH STA 35+40.41
193 LF 12" PVC ~ 0.20%
MH STA 35+40.41 to MH STA 40+35.00
495 LF 10" PVC ~ 0.26%
MH STA 40+35.00 to MH STA 42+52.27
217 LF 10" PVC ~ 0.30%
MH STA 42~52.27 to MH STA 47+27.00
475 LF 10" PVC ~ 0.30%
MH STA 47+27.00 to MH STA 52+22.00
495 LF 10" PVC ~ 0.30%
MH STA 52+22.00 to MH STA 57+16.64
495 LF 10" PVC ~ 0.30%
MH STA 57+16.64 to MH STA 61+54.08
437 LF 10" PVC ~ 0.30%
MH STA 61+54.08 to MH STA 63+66.06
212 LF 10" PVC ~ 0.30%
MH STA 63+66.06 to MH STA 68+32.02'
466 LF 10" PVC ~ 0.30%
1.36
1.30
1.36
1.36
1.03
1.03
1.03
1.03
1.03
1 .O3
1.03
0.72
0.77
0.77
0.77
0.77
0.77
0.77
0.77
BETHEL ROAD (CONT.)
Description
MH STA 68+32.02 to MH STA 72+86.01
454 LF 10" PVC ~ 0.30%
MH STA 72+86.01 to MH STA 74+72.04
186 LF 10" PVC ~ 0.25%
MH STA 74+72.04 to MH STA 75+02.71
30 LF 10" PVC ~ 0.30%
0.77
0.72
0.77