DR9201-CS 920221 (2)COPPELL PUBLIC WORKS
MEMORANDUM
DATE:
FROM:
RE:
February 21, 1992
Ken Griffin, P.E., city Engineer ~
Steven G. Goram, Director of Public Wo
Howell & Bullock Pavement Improvements
Attached is figure VII - 2 which is the basic plan to improve the
drainage on Howell and Bullock Streets as recommended in the Halff
Report. Additionally, we have attached a crude sketch of the cross
section of the roadside swale. We would like your help in
providing us some basic construction plans.
We're also providing you with a copy of our specifications. It is
our intention to advertise this project beginning February 28,
1992, and opening bids March 10, 1992. If possible, we would like
the plans complete and available to contractors by Monday, March 2,
1992.
Please give me a call in order that I can talk with you briefly
about this project.
SGG/sm
5 o
Clean and
north.
CITY;[OF., COPPELL
Public Works Department
Drainage Improvements
Howell Bullock St.
Grade . of both
Remove and replac~ all pipe with 15"
at driveways, any.sidewa cross the
and other enclosed draina¢ ,stems within the~pro
(Alternate products, i.e$,.]~ADS drain pipe
other enclosed, areas)
Grade to drain' Earthen Alley b~tween the two
north. (Alternate price~i-T,?separate'item).
Ail drive approaches and.sidewalks.are to be
the same or better condition that existed
project start.
Incorporate a 25' Drainages. Swale along Railroad
=o drain to the east and discharge into the
inlet. '
Provide transit shots to,establish a
Southwestern north to. Railroad Ri~
the 25' Drainage Swale at,~the Railroad Ri¢
Maintain a minimum 3 to 1.?slope.
Dress up and hydromulch once project is ly
complete.
Citizen access to drives are to be maintained at all times'
unless otherwise arranged with the resident·
Traffic Contre man win provided and maintainedthat
consistent with the Texas Manual on Uniform Traffic Control
Devices (T.M.U.T.C.D).
~PROPOSED 25'
DRAINAGE SWALE~
rING PONDING
AREA '
EXISTING b~.O
SCHOOLy
DRAINAGE
SWALE
· PROPOSED
SPECIAL "Y"
TOP 510.6
FL. 508,6
RI
IECT TO
SEWER
,UTFALL
E TO DRA
ALLE~' ~---~
x
12')
RCBC
EAN AND GRADE '-'
ROADSIDE
DRIVEWAY ¢
0 100 200 300 ;~"
SCALE'IN' FEET r~-~ ?.~ ~ .'~
FIGURE VII-2
, ' SITE.B/i · i
BULLOCK{ST.:AND; HOWELI~i
DRAINAGE
$ccde: I"-' l'