Villages C P3&4-CS 910528MORRISON HYDROLOGY/ENGINEERING, INC.
520 AVENUE H EAST, SUITE 102
ARLINGTON, TEXAS 76011
May 28, 1991 '- ~
Ms. Shohre Daneshmond P.E. ~ A
Acting Gity Engineer
city
Post Office Box 478 ~/~~ ~,~
Coppell, Texas 75019
Re:Review of Villages of Coppell Phase III & IV for the City
of Coppell, Texas
Dear Ms. Daneshmond:
Kimley Ho~ and Associates is presently providing review
services for the City of Coppell for compliance with the City
Flood Plain Management Ordinance. In that capacity they have
asked Morrison Hydrology/Engineering, Inc. to assist them in
the review of the subject project.
In order to complete a review of this project it is necessary
for the requester to provide sufficient information. The
report submitted does not contain sufficient information for
a review. We have provided a checklist of items necessary to
support a request for reclamation.
If you need additional information or clarification please
call me.
Sincerely,
MOP, RI SON HYDROLOGY/ENGINEERING, INC.
Ronald W. Morrison, P.E.
Senior Hydrologist
CC: John Maggiore, Kimley Horn and Associates
FLOODPLAIN DEVELOPMENT CHECKLIST
The following items represent a brief outline of items required by the City of Coppell
in order to develop in a floodplain. References are taken from Ordinance 87390.
Reference Item
Art. 4C-2 All models must refer to the 2 yr, 100 yr existing, 100 yr ultimate,
and low flow.
Art. 4C-2(a) Lowest floor must be higher than BFE + 2' and 100 yr (ULT.) + I'.
· Art. 4C-2(b) Existing and fully developed 100-year floodplain must be delineated.
Art. 4C-2(c) Determine flood storage loss data.
Art. 4C-2(e) Flood levels caused by the development plus any anticipated future
developments must be less than the 100 yr (ULT) and the 1980 FIS
BFE + 1'.
Art. 4C-2(f) Any changes in the floodplain must be submitted to FEMA according
to their procedures.
Art. 4C-2(g) Must show evidence of all necessary permits; Local', State and Federal.
Art. 5B-1,2 Elevation of lowest floor of shallow flooding areas must be greater
than highest adjacent grade + 2' or the structure must be flood protected.
Art. $B-1-2 All work must be certified by a P.E. or R.P.S.
Art. 5C-4 The following special note must be included on the plat 'Floodplain
Development Permit Application No. has been filed with the City
of Coppell Floodplain Administrator on , 19 , Floodplain
Administrator Date.
Art. 5C-5 Boundry's of floodplain and floodway must be shown on plats.
Art. $C-6 Lowest floor elevations for each lot must be shown on site grading
plan.
Art. 5C-7 A permanent bench mark must be established within a subdivision
development·
Art. 5C-8 A following special note must be included on the plat.
"The developer, builder, seller or agent shall inform in writing, each
prospective buyer of subdivision lots or property located within special
flood hazard areas of this site that such property is in an identified
flood hazard area and that all development must conform to the
provisions of the City of Coppell Floodplain Management Ordinance.
The written notice shall be filed for record in the County deed records
and a copy of the notice must accompany the application for
development permit.'
r The above items are only a brief checklist of items need to comply with Ordinance
, 87390, a detailed review of this Ordinance is necessary in order to fully undersl:and its
contents.
... Any submittal in connection with a floodplain development must include the above items.
This submittal music as a minimum also include the following:
o Text describing where the basic data was obtained, what is intended, and the
results, all in sufficient detail so that it is fully understandable and supportable.
o Exhibits muse be presented that clarify data. These must include:
Wa~er surface profiles, cross sections, work maps, floodplain and floodway
delineations for both existing and improved conditions. Comparisons must
be shown between existing and proposed conditions for velocities, water
surface elevations, storase, and any other impacts.
o Computer models must be presented in detail, Not just input and/or summary
· . printouts.