Meadows Addn 6-CS 890509May 9,
PAUL $. UNZICKER, INC.
8700 STEMMONS FREEWAY, SUITE 400 ~
dk
DALLAS,' TEXAS ~247 ¢214) 6~4-3:~
Mr. Kevin
Ginn, Inc.
17
Tex
75248
Re: Meadow~
Coppell
:t/on 6 - Phase One
.~exas
Dear Kevin:
The attached F
on May 3rd,
find below an
follows:
Plan and Engineering Plans have been revi.
)er your review comments found on the return.
emized listing of all changes to this plan
Sheet 3 of 28~ Water and Sanitary Sewer Plan
--Note 10 has been revised to provide a 24-inch clearance and storm sewer inlets
--Note 11 has been completed indicating the proper sheet ~
sewer details
--Note 13 has been clarified indicating compaction to b.
points of optimum moisture
--Note 15 has been completed stating water meters to be one
curb
--Note 23 has been revised stating the contractor shall prov
6" concrete pad for all valves
--an additional note (No. 27) has been added indicating thm
located one foot within street right-of-way
Sheet 4 of 28~ Sanitary Sewer Profiles
--Flow line elevations have been added ever 50 feet
--a grade of 0.4 percent has been shown between stations
4+38.96 on line "S-I".
Sheet 5 of 28; Drainase Area Map
--type "B" manholes have been indicated on this exhibit whe~
--positive overflow has been shown on this exhibit in sag a~
--all inlets have been shown as standard recessed inlets
PAUL S. UNZICKER, P.E.
President
~ed per our meeting
~d markups. Please
set. They are as
between water mains
xmber for water and
at ±2 percentage
oot behind back of
ide 2'-6" x 2'-6" x
t sidewalks will be
;+26.41 and station
· applicable
'eas
AVID M. 5CHNURBUSCH, P.E.
Vice President
Page 2
Kevin Pieffer
May 9, 1989
Sheet 6 of 28~ Storm Sewer Plan & Profile
--the hydraulic grade line and elevations have been shown on
--a type "B" manhole and the detail location has been shown
station 4+10.45
--General Note 3 has been revised indicating 95 percent
pavement and 90 percent compaction under natural ground
Sheet 7 of 28~ Storm Sewer Plan & Profile
--type "B" manholes have been indicated on the exhibit and t
has been shown for those manholes at station 8+48.48, sta
station 14+71.48
--the hydraulic grade line and elevations have been sho~
section of this exhibit
--your request to lower the storm sewer pipe in the vicinit
has been investigated. Due to the proposed sanitary sewex
and 11+95, th~ grades will remain as is. Lowering the pipe
conflict with the proposed Sanitary Sewer Main. However
added to each respective Paving Plan/Profile exhibit w
contractor of the shallow storm sewer pipe (1.8 foot belov
We have also required the use of Class IV RCP pipe where
less than 2.0 feet beneath the pavement.
Sheet 8 of 28~ Paving Plan and Profiles
--top of curb elevations have been added at every 50 foot st~
--General Note 7 has been revised indicating that subgrades
than 12 will be lime stabilized and PI's less than
stabilized
--General Note 10 has been revised to show proctor dens
percentage points of optimum moisture
--General Note 12 has been revised stating that all pavement
thick
--an additional note has been added showing location of
within street right-of-way)
--an additional note has been added indicating that the fls
Boulevard were designed by others. As you are aware,
provide the necessary grade (minimum allowed per City St
Boulevard since one-half the street section is already
option is to match these existing grades
Sheet 10 of 28~ Paving Plan and Profiles
--a note stating contractor shall dowel into existing pavemE of Woodmoor Drive has been added to this exhibit
--vertical curve date for the 100 foot curve between Statio~
been added to the profile section of this exhibit.
this exhibit
for the manhole at
compaction under
~e detail locati;n
Lion 11+75.79, and
m in the profile
y of station 12+00
crossings at 8+70
will be in direct
, a note has been
arming the Paving
top of pavement.)
the storm sewer is
tion
with PI's greater
2 will be cement
Lties to be at ±2
will be six inches
Lde walk (one foot
t grades in Samuel
we are unable to
tndards) in Samuel
place. Our only
it at the East end
8+50 and 9+50 has
Page 3
Kevin Pieffer
Nay 9, 1989
Sheet 12; Pavin~ Plan and Profiles
--your request to flatten the grades in that reach between
station 12+00 has been investigated. It is our engineeri
the design sho~n is an acceptable design and will rea~
following reasons: one, reducing the grade through this
will generate a steeper grade at the intersection of Mai
reducing the site visibility at the intersection substantia
the grade through this reach of pavement will cause' grade p
East/West streets of this subdivision as well as reducing'
to make the subdivision work, and three, the reach of pavel
and only 1.5 percent steeper than required by City code
respectfully request that this design remain as shown.
Sheet 13; Pavin~ Plan and Profiles
--a note has been added to this exhibit warning the contrac'
storm sewer in the vicinity of station 00+25. TYPe IV RCP
specified through this shallow reach.
Sheet 14 & 157 Lot Gradin~ Plan
--positive overflow areas have been indicated on this exhibit
section for the swale has been shown on each lot grading exl
If you have any questions regarding this development, please:
I appreciate your quick review and approval of this plan set
tight schedule to get Samuel Boulevard constructed prior to
the 1989-1990 school year.
Sincerely,
Kevin R. Kendrick, P.E.
Project Manager
KRK/bd
CC:
Jeff Hawkins / Pierce Lunsford Associates
Gordon Jones / DT Construction
station 10+00 and
.ng Judgement that
in as is for the
reach of pavement
'lee and Woodmoor,
£1y, two, reducing
roblems ~rlthin the
:he necessary dirt
bent is very short
. We therefore,
or of the shallow
)ipe has also been
, A typical cross
~ibit
!eel free to call.
as we are under a
the beginning of