ST8201-CS 890104TO
SENDER . RETAIN THIS COPY
GINN, INC.
January 3, 1989
CONSULTING ENGINEERS
Mr. Russell R. Doyle, P.E.
City Engineer
City of Coppell
P.O. Box 478
Coppell, Texas 75019
Re: Denton Tap Road Improvements from Belt Line Road to Sandy
Lake Road - Water on the Roadway at the Sandy Lake Rd.
intersection.
Dear Mr. Doyle:
As req~/ested in your November 14, 1988 memo, copy attached, we
have reviewed the existing paving and drainage facilities in the
southeast quadrant of the Sandy Lake Road/Denton Tap Road
intersection. It appears that the most practical and least
expensive solution to eliminating most of the flow of sprinkler
water out of the most northerly driveway from Town Oaks Centre
onto and across the northbound lanes of Denton Tap Road is to
construct inlets in the driveway as shown on the attached marked
print and tie them into the existing storm sewer system as shown.
We recommend that the work depicted on the attached print be
included in the scope of work of the current Contract for the
Denton Tap Road Improvements from Belt line Road to Sandy Lake
Road. The approximate construction cost of this work is
$6,000.00. This item can be charged to the contingency fund in
the project budget, copy attached.
Due to the fact that the work will have to be done on private
property, it will also require that two drainage easements be
acquired.
Unless directed otherwise, we will proceed to prepare the
necessary drainage easements. Upon receipt of the easements, we
will add the necessary inlet to the project.
We trust this meets with your approval.
Sincerely,
Jo~n C. Karlsruher, P.E.
Project Engineer
enclosures
cc:
H. Wayne Ginn, P.E.
J-378 (a:j378minw)
17103 Preston Road · Suite 100 · LB 118 · Dallas. Texas 75248 · Phone 214/248-4900
PROPOSED PROJECT BUDGET
DENTON TAP ROAD IMPROVEMENTS
FROM BELT LINE ROAD TO SANDY LAKE ROAD; AND
FROM SANDY LAKE ROAD TO DENTON CREEK
CONSTRUCTION (6 LANE w/St'd.
RAILROAD CROSSING
CONOCO PIPELINE
STREET LIGHTS
LANDSCAPING
TRAFFIC SIGNALS
RIGHT - OF - WAY
ENGINEERING
INSPECTION & TESTING
TRENCH SAFETY
CONTINGENCIES
Bridge Rail)
$ 5,161,131.83 *
$ 206,000.00
$ 40,000.00
$ 217,500.00
$ 213,000.00
$ 170,000.00
$ 100,000.00
$ 443,402.66
$ 154,833.95
$ 26,763.39
$ 367,368.17 *
TOTAL $ 7,100,000.00
(-) TOTAL AVAILABLE CITY FUNDING ($ 4,500,000.00)
(=) NECESSARY FIJNDING FROM DALLAS COUNTY $ 2,600,000.00
TOTAL AVAILABLE DALLAS COUNTY '85 BOND FUNDS $ 4,250,000.00
(-) NECESSARY FUNDING FROM DALLAS COUNTY ($ 2,600,000.00)
(=) REMAINING '85 DALLAS COUNTY BOND FUNDS $ 1,650,000.00
REVISED APRIL 6, 1988
* REVISED APRIL 18, 1988
The estimated construction costs have been revised to
include the only TOTAL BASE BID (6 LANE) for each project.
Initially this item also included the Contractor proposed
$ 40,000.00 reduction in estimated Contract Price; the
alternate bid item for a retaining wall~(which is no longer
needed); and the additional cost of the Contractor's
proposed Alternate Trench Safety System. After further
consideration, these costs have been deleted from
Construction and added to the Contingencies.
GINN, INC.
CONSULTING ENGINEERS
December 19, 1988
Mr. Russell Doyle,
City of Coppell
P.O. Box 478
Coppell, TX 75019
P.E.
Re: Attached Memo - Water on Roadway on Denton Tap at Sandy Lake
Dear Mr. Doyle:
Mr. John Karlsruher, the Project Engineer for the Denton Tap CIP,
is looking into the matter to determine the best method to handle
the problem.
Upon completion of his investigation, we will
to the Denton Tap plans that will facilitate
of the sprinkler water as possible.
make field changes
picking up as much
We believe that once the Denton Tap Road project is complete, the
problem will essentially be eliminated.
Sincerely_,
H. Wayne Gihn, P.E.
HWG/dsp
cc: John C. Karlsruher,
P.E.
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