Park West CC(1)-CS 900507GINN, INC.
CONSULTING ENGINEERS
PL~T/PL~.N REV~'E~
Date:
May 7, 1990
To:
From:
Re:
City of Coppell Public Works Department
John C. Karlsruher, P.E. ~.'/C~
Park West Commerce Center Landscape, Irrigation and
Grading Plans
We have reviewed these plans with the Public Works Department
Section Heads and the have following general and specific
comments:
General:
Based upon staff's review and our visits to the site we conclude
that the landscape, grading and irrigation work along Belt Line
Road does not meet the City's requirements and does not comply
with the conditional terms of approval of the Final Plat by the
city Council on April 10, 1990. The berms, landscape and
irrigation still encroach the public R.O.W. and will interfere
with the sidewalk installation required by conditions 8 and 7 of
the attached April 11, 1990 letter from the City of Coppell to
Mr. Don Davis. The current grading of the 14' wide parkway along
Belt Line Road will make it nearly impossible to construct a 5'-
0" sidewalk as required with a maximum allowable cross slope of
5% or 20:1.
Staff has also noted that the current landscape, grading and
irrigation all along Airline Drive will present similar problems
with future sidewalks. It appears that if sidewalks are required
in accordance with the Subdivision Ordinance, much of the
landscape and irrigation will have to be modified at the property
owner's expense. The plantings screening the electric power
transformers seem =o be the worst offenders.
SDecific:
1. Sheet L-1 shows proper 14' parkway width dimension along
Belt Line Road, but both the roadway and the parkway are
drawn to the wrong scale. This may cause much confusion in
the future.
2. Sheet L-2 has the same problem as Sheet L-1.
3. Sheets L-4, L-5, and L-6 show landscape encroaching the
public R.O.W. and it appears that future sidewalks would
interfere with the landscape.
17103 Preston Road · Suite 100 · LB 118 · Dallas, Texas 75248 · Phone 214/248-4900
9.
10.
11.
Sheet I-1 shows irrigation facilities located in the public
R.O.W. which may interfere with the future sidewalk.
On Sheet I-2 it is not apparent whether the water meter
shown is existing or proposed. Please clarify.
On Sheet I-4 the details for the Double Check Valve Assembly
and the irrigation connection to the water main both need to
be revised.
On Sheets G-1 and G-2 the grading within the 14' parkway on
Belt Line Road does not comply with the Subdivision
Ordinance; exceeds the 5% (20:1) maximum allowable cross
slope for a sidewalk; and the grading has covered up valve
stacks and other appurtenances related to the operation of
the City's water system. These must be properly located and
identified by the Developer prior to a final inspection.
On Sheet G-3 the note pertaining to "Water Meter" needs
clarification. It is ambiguous in its current form.
On Sheet G-4 the landscape and irrigation facilities
interfere with the future sidewalks.
On Sheet G-6 the Belt Line Road cross-section is not in
accordance with the Subdivision Ordinance and does not agree
with the provisions of the 4/10/90 City Council stipulations
for approval of the final plat. The slope of the parkway is
the main issue.
It appears that the grading in the area of the traffic
signal controller at Cowboy Drive/Belt Line Road has been
modified to suit our previous comments. We need
confirmation that the irrigation system has been suitably
modified to prevent water from being directed onto and into
the controller cabinet.
Once the Developer satisfies the above comments, the Public Works
Department will be ready to perform a final walk-through
inspection of the installed facilities.
cc:
Gary Sieb
Dale Jackson
Taryon Bowman
Don Davis, Don Davis Consulting Engineers
Mike Tucker, Prentiss Properties