DR9101-CS 900712DeShazo, Starek & Tah~, Inc.
Engineers · Planners
JUL I 6 I
330 Union Station · Dallas, Texas 75202 · 214/748.6740 . -
MEMORANDUM
TO: Shohre Daneshmand, P.E.
FROM: Glenn Hitt, P.E. ~
DATE: July 12, 1990
SUBJECT: Oak Trail Drainage
A meeting was held at 1:30 p.m., July 11, 1990, in the office of
Shohre Daneshmand.
In attendance:
Shohre Daneshmand, P.E.
Larry Davis
Per Birdsall
Glenn Hitt, P.E.
- City of Coppell
- city of Coppell
- City of Coppell
- DS&T
The following items were discussed:
1. TWO alignments were discussed for the proposed storm sewer
pipe in Willoway Lane:
Option I would route the storm sewer between the pavement
and north R.O.W. to avoid a conflict with the existing
sanitary sewer. This option would require less removal
and replacement of pavement but would take longer because
there are more utilities to relocate.
option II would align approximately in the center of the
pavement. It would cost approximately $700 more than
Option I but could beconstructed more quickly. In order
to resolve a conflict with the existing sanitary sewer,
a storm sewer manhole would be constructed through which
the sanitary sewer line would pass in a ductile iron
section.
DS&T will estimate the cost of an option to increase the
size of the proposed storm sewer pipe to accommodate
ultimate runoff from OA-2 and OA-4 as designated on the
Coppell High School Drainage Area Map. This was designated
as option 3 in the Oak Trail Drainage report prepared by
DS&T and dated January, 1990.
Ms. Shohre Daneshmand, P.E.
July 12, 1990
Page 2
After receiving cost data on all options, Coppell will
notify DS&T of their preference so that final plans may be
prepared.
4. The pavement replacement section on Willoway Lane shall be:
a. Compacted subgrade
b. Six-inch crushed stone base
c. Two-inch asphaltic concrete
5. The contract documents shall provide for:
a. Ail testing will be at the Contractor's expense.
b. All construction staking including control points shall
be at the Contractor's expense.
6. As per the proposal, DS&T will prepare the plans and
contract documents. Coppell will then advertise and bid the
project.
7. The city's purchasing agent, Jim Ragsdale, shall be included
in the bidding process.
8. DS&T will prepare a field note description for the required
easement. Coppell will negotiate the easement with the
property owner and file the easement.
This is our understanding of items discussed. If participants
disagree, please notify DS&T as soon as possible.
GH/smh