Northlake 635(3)-CS 971121Todd Abbott
Albert H. Halff Associates
8616 Northwest Plaza Drive
Dallas, Texas 75225
RE: Northlake 635 Business Park Lot 1, Block l(Coppell Business Center) / Ct
'Dear Mr. Abbott:
P.O. Box 478
Coppell, Texas 75019
214-462-0022
November 21, 1997
instruction Plans
Michael A. Martin, E.I.T.
Assistant City Engineer
The City of Coppell has received and reviewed the referenced plans and has the folio ring corjmae, nt§ to offer:
/1 Provide easement for water vaults
· · · . .~ ~.~'r~.~d¢~.~'-- ~~.e.~ ~.t~.~e
A2%
slope
must
maintained from the property line to the back of curb n ~e']rigt~t-o~e, zp~.
· ~'3, Provide additional gate valves as indicated on the water and sanitary sewer p---~ -- '"ans,~ .
,~. All Fire Department connections must be approved by the Fire Marshal. ~--
/5. Storm sewer line "A' should be turned into the direction of flow in the chanhel. /c/v r'? ,, 5.~'
~ Provide the architectural detail for the proposed guard railings on the box ~-~erts.
-- ,.~. Provide a drainage profile for the proposed channel on the south side of the ~levelopment.
~'8. How will proposed wheel stops at the proposed curb opening affect the draidage (see sheet STM -2)?
/9. Provide concrete rip rap a~ eqtran, ce~ of ~e 48" J~CP~in ttje. dqli~nag~e channel ~ocated on the south side
of the development. ,~ &,/er~ ff~'t ~,~ ~ / .
a,~0. ~' Show the location of all water and sanitary sewer crossings in the storm server profile.
--tl Provide concrete caps at all storm sewer pipe size changes./7~/L2~2Y-~ ~ 7~,
/12:~/' Show the 100 year hydraulic grade line in all storm sewer profiles.
~4'3. Provide storm sewer profiles for all storm sewer laterals. [,~5 J,'~ ~
~14./The maximum allowable manhole spacing for sanitary sewer line is 500'. tneremre, an additional
~ manhole will be required on sanitary sewer line "A".
/15.~/'The minimum slope for 8" sanitary sewer line is 0.34%.
/16.,/"On the drainage area map show the location of the proposed drainage systerr s.
/17. -~On the left turn lane detail, Sheet DD-1, the proposed pavi.n~g thickness must nl atch the thickness of Belt
· /r , ' - ,
/ 18. The proposed southern median opening on Belt Line Road may need to be b~gl;er. Please use a WB-40
dthout running over the
turning radius template to determine !f a Semi-truck can turn into the site ~
median 7
to install ballard§ between the driveway and the sout channel?
There are various other minor comments throughout these plans. Once the: comments have been
addressed, the marked up plans along with two revised sets of plans should be re,, ubmitted to the City for
review. If you should have any questions concerning these comments, please feel tee to contact me at your
convenience.