Cottonwood Est-CS 940531The City With A Beautiful Future
P.O. Box 478
Coppell, Texas 75019
214-462-0022
May 31, 1994
Ms. Susan E. Weaver
Bury-Pittman Consulting Engineers and Surveyors
Three Lincoln Center Suite 1236
5430 LBJ Freeway
Dallas, Texas 75240
RE: First Construction Review Comments for 149 Cottonwood Drive Grading and
Drainage Improvements.
Dear Ms. Weaver:
The City of Coppell has received the referenced plans and has the following comments
to offer:
Provide a title sheet on the next set of review plans.
2. In Section A-A of the modified Y-Inlet, the vertical wall thickness may need to
be at least 8 inches.
3. Provide two vertical supports for the modified Y- inlet. Revise the Section A-A
detail to show the placement and size of the supports, revised rebar sizes, and
the three manhole covers needed with the two vertical supports.
4. No fill is allowed beyond the floodway easement line.
5. Grade to drain and spread the water concentration out more at the location
shown on sheet 1.
6. Reference City of Coppell Standard Construction Detail Sheet SD10 Section D-D
12' and 14' only inlets instead of sheet SD14.
In the plan view of the modified Y-inlet, the distance between the two proposed
42" R.C.P's may need to be 18".
8. Show the top of the spillway elevation on sheet 2 of the profile of the spillway
looking north.
What about the possibility of constructing a junction box to make R.C.P
connections and then building one or two Y-inlets off the side of the junction box
instead of the modified Y-inlet design?
There are various other minor comments throughout these plans. Once these
comments have been addressed, the revised set of plans should be resubmitted to the
City for review. If you should have any questions concerning these comments, please
feel free to contact me at 393-1016.
Sincerely,
Atul Patel, ..
Graduate Engineer