Creekview Add PD-CS 901205December 5, 1990 '[~
an D. Maler
Mr. Nath ' _
~nN~t~a~kEngineer lng Consultant
8800 North Central Expressway, Ste. 300
Dallas, TX 75231
Re: Low Flow Erosion Control Wall/Grapevine Creek
224 Bethel Road, Lot 4 Block 'B'
228 Bethel Road, -Lot 5 B].ock 'B'
232 Bethel Road, Lot 6 Block 'B'
Dear Mr. Maier:
Enclosed please find copies of documents we received from Mr. Ron
Knight, the contractor, for Staff's review and evaluation of his
request regarding the above referenced erosion control wall, on
November 28, 1990. We reviewed the submitted infoz~ation, as per
your request during our telephone conference on December 4, 1990.
As you may know, this area of Grapevine Creek has experienced
erosion, as identified in the Coppell City-Wide Storm Water
Management Study. We, therefore, are in favor of any functional
erosion control plan and have no objection to the above project,
as long as the following comments are addressed.
1)
Provide a grading plan showing the existing and proposed
grades as they relate to the wall, sealed by a registered
professional engineer in the State of Texas. The
information on the attached grading plan can be used as a
base plan, with some modification along with the engineer's
seal. Upon completion of the proposed wall, provide the
City with the As-Built grading plan(s), certified by the
registered public surveyor.
Provide some details showing erosion protection along the
edges and the bottom of the wall. Smooth transition is
recommended between the proposed wall and the earthen
channel, by use of materials such as rock rip-rap or similar
material.
3)
The existing creek bed and creek slope must be maintained
and the fill activity, must be kept to minimum, as it may
become necessary for the proper construction of the wall.
[,otter to Nathan D.
D(;r_-.c:ml)er 5, 1990
2
Comply with tho C.ity of Copp,:'!.l Fl.o~(]p]ain Ordinance #~17390.
'-~ reco,,nmend thai: I:)~ hoi. ght: of Itl~: p~-oposed wall bo above
5) 'l'l~e C'tty of Coppel]. be furnished with a "llold Harmless"
].o.[:ter stat.i.ng tha~: i:h¢: appl i. cant: (s) will assume all
J..i.a}~i.].it.Los assoc.i, al:od w.Ll:h this acl:i.vit:y; and will
.i. nctomnify and ht.)l.(! the City t)f Cop[,~'l.]. ha~less from any
damages rosult Lng froto ichill act.i.vi, ty. ..-
i'f you can fac.L].Li'.al;o the proco()d ~f this project, please provide
ial~c~ al)ovc? .].i~; tod _[.n I~o.rma I: i. on, a.l.(~ng w.i Lh you r wri. tt~n response
anti rocommonda't.i.r)n, C)Ilt;(~ aga.i.n, [,.].oasc note that we are in
:;upi)orr of l:ho~;o typo:; ol:. l.)i.-ojock:-;, as long as the City of
Coppol.L's minimum s l:andard:; ar~ comp l_i. od w.i_th~ and a reasonable
and :;ound ong.Lnoori, n9 design cr.i.l:~r.i.a .i:.; !)oi.n9 applied.
We look :forward to worki.n9 wi. th tho app]..i.cants and/or their
rr~prosontativo(s) on th.Ls project. };hou]d you have any
questions, please call mo ~l: ,tG~-~495.
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R'RAP ~-~o~ ,o ~...~.T & ASSOCIATES, INC.
~', ~j~~HARHLESS AGREEMENT ~;_2 ' ~ 8 I~
' ~ By: Engineering
:'~o..'.~r'v' P,]o: h': i.n and for the State ef Texas
~.a~a "' '.- '
.~~ Ut~A L. RAFPOLD
~ / f._~',_£~ \ Notary Public
,..- '~ ~:,s~'~251 STATE OF TEXAS t
CliY MANAGEFi "~--',<.
~c_[~.- l..,.y Comm. Exp. OCT 29. 1994"
P. O. BOX 111561 ARLINGTON, TEXAS 76007 Metro 817/265-4299