Park West CC(1)-CS 891103The City With A Beautiful F
November 3, 1989
FILE COPY
P.O. Box 478
Coppell, Texas 75019
214-462-0022
Mr. Thomas H. Pritchett
T. H. Pritchett & Associate
5207 McKinney Ave.
Dallas, Texas 75206
RE: Park West Commerce Center- Landscaping,
Irrigation and Grading Plan
Dear Mr. Pritchett:
We have reviewed the above referenced plans, as you requested on
October 24, 1989. Since the initial work on this project has
already taken place, we have also conducted several site
investigations and have the following comments.
- The existing Parkway width on the west side of Beltline Rd.
is fourteen (14) feet. Your plans show only ten (10) feet of
parkway. Please make appropriate corrections (see attached
copy from Beltline Rd. Improvement plans).
- The slopes on the berm and street parkways must be in
compliance to the City of Coppell's standards (i.e. 4:1 slope
or less). Also it appears that the steeper slope starts
closer to the curb line on Beltline Road than shown on the
plan.
- Sufficient sight distance is required at existing roadway
intersections and any proposed driveway(s) and/or roadways,
in compliance with Coppell's Subdivision Ordinance. As
requested attached please find a copy of a typical sight
distance requirement used by the City of Dallas for your use.
As a part of the formal planning and zoning process, we are
presently reviewing the preliminary plans on the entire Park
West Commerce Center project and encourage coordination
between these two projects, especially regarding drainage
design and any other engineering matters.
Per our site visits, it appears that the existing berm along
Beltline is placed where the future sidewalk should be
installed (see attached drawing from our Beltline Rd.
Improvement plans).
Page 2 of 2
Ail utilities such as water, sewer, traffic boxes, and
devices, etc. must be operable and accessible at all times.
Attached please find one set of mark up plans, reviewed by
Public Works staff, plus a copy of the written comments from
Howard Pafford. Please make corrections and provide us with
two revised sets of plans. Please note that Mr. Diano, Park
Superintendent is presently reviewing your landscaping plans
in detail and we will contact you.
It is our understanding that the Building Inspections
Department has only permitted the irrigation system and not
the berm and grading.
Any work activity within the public roadways requires a permit
issued by the Public Works Department, Street and Drainage
Division.
As you and Shohre Daneshmand discussed, you will review these
comments and provide us with your response. We will set up a
meeting at your convenience with all affected parties regarding
this project and work with you toward plan approval and issuance
of the permit.
If you have any questions, please contact Shohre Daneshmand at
(214) 462-8495.
City Engi
SD/RRD/bb
xc~ Steve Goram, Director of Public Works
Dale Jackson, Building Official
Per Birdsall, Street Superintendent
Don Davis. Consulting Engineers
Don Gerken, Prentiss Properties
Attachments
PRITCHETT.SD
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CR 74~09.62
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GATEWAY
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CITY OF COPPELL
SUBDIVISION ORDINANCE
NOVEMBER 1PBS
P=ep==ed By:
G~nn, ]nc.
Consulting EngJnee=s
De]los, Tex=s
C o
~Y_~D!~!JDD~- Alley shall not intersect
thoroughfares. Alleys which run pa=aiiei to and shore
common ~ight-of-way line with o mo~or thoroughfare
not ~ntersect the c~oss-street at a point directly adjacent
to the ma~or thoroughfare intersection with the
cross-st~eet, os indicated in Figure 3.
]D~~!gD_y!§!~!!!!y_g~!~uctions- No fence, wall,
screen billboard, sign st=ucture o~ foliage of hedges,
t~ees, bushes o~ shrubs shall be e~ected, planted or
maintained in such o position o~ place so os to obstruct
interfere with the following minimum sight line standards:
1. Vision at all intersections where streets
intersect at or nea~ ~ight angles shol) be clear
at elevations between two and one-half
feet and nine ID! feet above the ave~age street
grade, within o triangula= a~eo fo~med by
extending the two curb lines f~om thei~ point of
tnte=sectton (see Figure ~), fo=ty-ffve
feet, and connecting these points wfth on
imaginary line, the=eby making a t=iangie.
there o=e no curbs existing, the t=iangulor oreo
shall be fo=med by extending the p=operty lines
f=om their point of intersection twenty-five
feet and connecting these points with on
imaginary line, the=eby making a t=tangle.
Appendix A
!
!
!
!
INTERSECTION VISIBILITY OBSTRUCTIONS
POINT OF
INTERSECTION
STREET
45' ~I
FIGURE 4
d. Intersection Grades
The grade of an intersecting street with the principal street
gutter should not be generally more than four (4) percent either
up or down within the first twenty (20) feet beyond the curb line
of the principal street except that in very hilly terrain a maximum
intersecting grade of six (6) percent can be considered. Grade
changes of one (1) percent or more require vertical curves.
3.06 SIGHT D~STANCE AT INTERSECTIONS
An important consideration in the design of city streets and thorough-
fares is the vehicle attempting to cross the street or thoroughfare from the
side street or drive. The operator of the vehicle attempting to cross should
have an unobstructed view of the whole intersection and a length of the
thoroughfare to be crossed sufficient to permit control of the vehicle to
avoid collisions. The minimum sight distance considered safe under various
assumptions of physical conditions and driver behavior is related directly
to vehicle speeds and to the resultant distance traversed during perception
and reaction time and during braking. This sight distance, which is termed
intersection sight distance, can be calculated for different street or thorough-
fare widths and for various grades upwards and downwards. Recommended inter-
section sight distances are shown in Table 6. Figure 6 shows the method for
measuring the intersection sight distance.
-27-
VEHICLE IN LANE
NEAREST IN'[
GRADE APPROACHING
INTERSECTION
LINE OF SIGHT
:HICLE~ IN LANE NEAREST
APPROACHING TRAFFIC,.
FAR SIDE
GRADE APPROACHING
INTERSECTION
INTERSECTION NE NEAREST LINE OF SIGHT~
VEHICLE IN LANE~
NEAREST APPROACHING
TRAFFIC,
NEAR SIDE
STANCE AT INTERSECTIONS
SIGHT DI
USE WITH TABLE 6
FIGURE 6
-28-
CC)
Z
rtl
~ 0 ~ o ~ m ~
m ~
~ z
~ ~ ~ o ~ ~~ 0
~ 0 0 0 ~ ~ ~
~ 0 ~ 0 0 ~ m ~
~ 0 0 0 0 ~ ~ ~
- - - ~ Z
~ z
0 0 ~ ~ 0 0 0 0 0 0 ~ m m
0
m
0 0 0 0 0 0 ~ ~ 0 0 ~
m
8§o -
~ 0 ~ ~ ~ 0 ~ ~
~ 0 ~ ~' 0 0 0 0 ~ 0
c ~ m
I
~ ~ 0 ~ ~
0 ~ 0 0 ~ 0 0 0 0 ~ m
m
0~ Z
T. H. PRITCHETT
AND ASSOCIATES
LANDSCAPE .~k~CHITECTLJRAL
PLANNING, ~"c~
~.':-~1'.~, .1
.AND MANAGEMENT
DALLAS, TEXAS ~'"~
214 , 559 . E808
October 19, 1989
Mr. Lee Hansen
Prentiss Properties, Ltd.
1534 LBJ Freeway
Dallas, Texas 75234
Re: park West Commerce Center, Streetscape
Landscapet Irrigation and Grading
Mr. Hansen:
Following are notes from the meeting with Mr. Howard L. Pafford
of the City of Coppell:
l. Water.meters
2. ~ire hydrant valves
~ Stacks ;i~:~ a'~uu ~:-. may need extension~-- valve stack
riser may be used. Beltline west side, south of Airline;
Beltline west side, north of A%rline (9) , Airline, south
side (14). ~
3. Sewer manholes
Raise to finish grade.
west side (3).
Airline, north side (8); Beltline,
Irrigation
Water meters and double check valve 'for medians to be raised
(5).
Main line valves
Beltline/Airline -- 2, and 1 in street now. After median
construction, it will be in street (uncover now).
Airline, south side -- 2 at site, 1 construction
Beltline south of Airline -- 1 near drain boxes.
Mr. Lee Hansen
October 19, 1989
Page Two
Building permit requirement:
city is unsure and will check.
up.
Mr. Greg Jones will follow
Note:
Doug Talley ~-- received utility drawing, Gateway project, with
fire hydrant valve locations.
Sincerely,
~. ,~.. ~,,r~,~z_. ¢(7-~)-
Thomas H. Pritchett
President
THP:pb'
cc: Mr...~:~:Doug.'<Talley'''''
L-1
L-2
L-3
L-4
L-5
DALLAS/FORT WORTH
INTERNATIQNAL
AIRPORT
VICINITY
NOT TO SCALE
D~TE SHEETS
S}{EET INDEX
Areas D, E, F
Areas G, H, I
Areas J, K, K
Areas M, Nw O
Areas p, Q, R
, Cover sheet, Location Map of Areas
Landscape Planting Plan
LandscApe Planting Plan
Landscape Plant[ag Plan
Landscape planting Plan
Land~¢ape Planting plan
Landscape Planting Plan
Irri;at[on System
I-1 Areas 'A, B, C
I-2 Irrigation System Areas D, E,
I-3 Irrigation System Area~ G, H,
I-4 Irrigation System Ar~as J, K, K
I-5 Irrigation System Areas M, N, 0
I-6 IrrigatLon System ......... Areas.
P ARK WE ST:~"~'COMMERCE
PRENTISS PROPERTIES LIM
COPPELL, TEXAS.
'CONSTRUCTION. p~ASE~'" '.'
PHAS .................... . ....
.PHASE--~-I.~I-EE , FREEiS'0RT PARKWAY" '" .
D A.TE:~8- 15-89