Creekview North-CS 901205Re: Low Flow Erosion Control Wall/Grapevine Creek
224 Bethel Road, Lot 4 Block 'B'
228 Bethel Road, Lot 5 Block 'B'
232 Bethel Road, Lot 6 Block 'B'
Dear Mr. Maier:
Enclosed please find copies of documents we received from Mr. Ron
K~ight, 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 information, 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.
2) Provide some details showing erosion protection along the
edges and the bottom of the wall. Smooth transition is
reconunended 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.
Letter to Nathan D.
December 5, 1990
Page 2
Maier
4)
Comply with the City of Coppell Floodplain Ordinance #87390.
We recommend that the height of the proposed wall be above
the two-year water surface elevation.
5)
The City of Coppell be furnished with a "Hold Harmless"
letter stating that the applicant(s) will assume all
liabilities associated with this activity; and will
indemnify and hold the City of Coppell harmless from any
damages resulting from this activity.
If you can facilitate the proceed of this project, please provide
the above listed information, along with your written response
and recommendation. Once again, please note that we are in
support of these types of projects, as long as the City of
Coppell's minimum standards are complied with, and a reasonable
and sound engineering design criteria is being applied.
We look forward to working with the applicants and/or their
representative(s) on this project. Should you have any
questions, please call me at 462-8495.
Sincerely,
M. Shohre Daneshmand, I~E~--
Acting City Engineer
cc:
Alan D. Ratliff, City Manager
Steven G. Goram, Director of Public Works
Ron Knight, J. Ronald Knight & Associates
'i L/ I
December 5, 1990
Mr. J. Ronald Knight
P. O. Box 202541
Arlington, Texas 76006
Re:
Low Flow Erosion
224 Bethel Road,
228 Bethel Road,
232 Bethel Road,
Con(r-o] Wal I/(;rapr3vine CrEEk
I,ot 4 Ble(:k '1{'
Lot 5 Block 'B'
Let 6 Block '1{'
Dear Mr. Knight:
We have re. viewed tile dEcum(;nl:s y()u prov idt.M I:o ils ell Noveml)er
1990 (see attached docllmelll:s). ALs ¥()11 nla¥ kllow, this
Grapevine Creek has experienced ocosLon, as ~dentifi.ed in tile
Coppell City-Wide Storm Water ManagEmEnt Study. We, therefore,
are in favor of any functi.onal Erosion (eel;roi plan arid havo no
objection to the above projech, as long as LhE following comments
are addressed.
1)
Provide a gradlng pl. an showing the existing and proposed
grades as they relate to the wa].], sEa]ed by a regJste~:'ed
professional engineer in the State of Texas. The
infomation on the attached gt~ading plan can be used as
base plan, wi. th some modil:ir:al:ion along wil:h tile engint~f~l:'s
seal. Upon cempletion of I.In~ pr{q)os(~(l wal I, provJd(~ t, he
City wit. h l:he As-Bu.ilt gFading pl~nl(a), certi[Jed by I:ht~
registered public surveyor:.
2)
Provide some (]eta:ils tihowin(_l (;]'()sit~n I)I-oLEcL.Jon alen%l I:h(~
edges and the bottom ef I:he wall. Smool.h transi. Lion i:~
[11/i I:eri a I..
3)
The existing creek bed atld (: (ck. slel)e must; be maint:ai u(M
and the fill. act.'LvLLy, must bE kept Lt) mi. nimumt aa il. 111,~
become necessary loc I:ho ])F<)[}EI:' coI/sl::t?uc:l:ioIl OJ~ t,ho wall.
4)
Comply w:Lth tho City el (;(q,l~(:ll Floodplain Or(iinance t1117390.
We recommend that the he.i{.lhl, el! the Dreposed wa].1 be above
tho two-year wa to( sur l!ac~ ~:'1 (~va t i on.
Letter to J. Ronald Knight
December 5, 1990
Page 2
5)
The City of Coppell be furnished with a "Hold Harmless"
letter stating that the applicant(s) will assume all
liabilities associated with this activity; and will
indemnify and hold the City of Coppell harmless from any
damages resulting from this activity.
Please provide the above listed information, along with your
written response and recommendation of this proposed project.
Once again, please note that we are in support of these types of
projects, as long as the City of Coppell's minimum standards are
complied with, and a reasonable and sound engineering design
criteria is being applied
We look forward to working with you on this project, and should
you have any questions, please call me at 462-8495.
Sincerely,
' ~./~ohre Daneshmand,
Acting City Engineer
cc: Alan D. Ratliff,
Steven G. Goram,
~/Nathan D. Maier,
City Manager
Director of Public Works
N. D. Maier, Engineering Consultant
KNIGHTLT.MSD
FP ~4.1
II !
II
CONTRACT DOCUMENTS
and
GENERAL CONDITIONS OF AGREEMENT
for
Design, Permitting, and Construction of
Low Flow Erosion Control Wall
at
232 BETHEL ROAD
for
ROBERT W. BERNHARD
in
Coppell, Texas
SEPTEMBER, 1990
CONTRACT DOCUMENTS
and
GENERAL CONDITIONS OF AGREEMENT
for
Design, Permitting, and Construction of
Low Flow Erosion Control Wall
at
228 BETHEL ROAD
for
PHILIP M. JEWETT
CONTRACT DOCUMENTS
and
GENERAL CONDITIONS OF AGREEMENT
for
Design, Permitting, and Construction of
LOw Flow Erosion Control Wall
at
224 BETHEL ROAD
for
DON R. MEADOR
iR
Coppell, Texas
SEPTEMBER, 1990