Riverview Estates-CS 911114The City With A Beautiful Future
November 14, 1991
COPY
P.O. Box 478
Coppell, Texas 75019
214-462-0022
Mr. Mike Daniel, P.E.
Nathan D. Maier Consulting Engineers, Inc.
Three Northpark
8800 N. Central Expressway, Suite 300
Dallas, TX 75231
Re: Proposed Reclamation Project
Riverview Estates
Dear Mr. Daniel:
On November 12, 1991, I received your follow-up letter to our telephone
conversation held on 11-5-91, regarding reclamation of the proposed
Riverview Estates. It came to my attention that said letter did not fully
represent my comments. As a point of clarification, ! forward this letter
with my comments concerning your project, which, as minimum, must be
addressed:
This development must be in full compliance with the City of
Coppell's Floodplain Ordinance #87390.
A wetland determination must be obtained as soon as possible,
to identify existence of any wetlands.
All necessary permits must be obtained from other entities such
as federal (including the Corps of Engineer's (COE) 404
Permit), and state governments, if applicable.
This tract is within the regulator~ zone of the Elm Fork of the
Trinity River, and the City is participating in the Trinity
River Corridor FloodDlain Management. We recommend this
project to be in compliance with the Corridor Development
Certificate (CDC) manual and criteria. However, according to
our legal council, the CDC permitting process can not be
enforced, since it has not been adopted by the City Council.
I also indicated that in the City-Wide Storm Water Management
Plan, it is proposed that" . no reduction in valley storage
for the 100-year flood (fully developed watershed) be allowed
along Elm Fork of the Trinity River.
Letter to Mr. Mike Daniel, P.E.
November 14, 1991
Page 2
That the "no loss in valley storage" requirement is not
outlined in detail in the Floodplain Ordinance #87390. Please
note that as per Art. 4C-c, Pg. 24, you must ... demonstrate
with technical data, the impacts on the design base flood
storage capacity of the floodplain for all developments, which
include fill within the floodplain . . .
Once you submit all necessary flood study reports and
documents, they will be reviewed according to Ordinance #87390
for compliance. Upon approval, City staff will request a
conditional LOMR from FEMA, prior to issuance of Floodplain
Development/Fill permit.
The minimum finished floor of residential lots must be elevated
to a minimum of two (2) feet above the FIS base flood
elevation, or to one (1) foot above the design base flood
(ultimate condition) elevation, whichever is higher.
It is my understanding and as you may know, the City Council is interested
in procuring additional dedicated land for a part site/open space as part
of this development. This is a desirable use of land within the limits of
floodplain.
We look forward to working with you on this project and should you have
any additional questions, please do not hesitate to call me.
Sincerely, ~.~.~ /
M. Shohre Danestuuand, P. E.
Acting City Engineer
MSD/bd
cc: Gary L. Sieb, Director of Planning and Community Services
Don E. Huffines, Huffines & Partners
Gary C. Hendricks, P.E., Shimek, Jacobs & Finklea
RIVERLT