FS9905-CS 990521"05/21'/99
FRI 17:01 FAX 9722393820
9722393820
DALLAS
Kimley-Hom
and ASsociates. Inc,
TEL 9~7/0
FAX 9722393820
Fax Transmlttal
Original coming by mail/courier: Yes / No __
If you have any problems. please call 972-770-1300 and ask !or.
Total number of pages including cover sheet: ~
05/21/99 FRI 17:01 FAX 9722393820 DALLAS ~002
and Associates, Inc.
May 21, 1999
·
SuRe 1800
12700 PI~ Central Drive
D~llas, Tew.m$
75251
Ken Griffin, P.E.
Director of Engineering and Public Works
City of Coppell
P.O. Box 478
Coppcll, TX 75019.4409
Coppell, ~
Review of CLOMR for River Chase Elementary School (Elm Fork
of the Trinity River)
Dear Mr. Griffin:
We have completed our in itial review of the Flood Study in Support of a
Conditional Letter of Map Revision for River Chase Elementary School in the
City of Coppetl, Texa~ for the Elm Fork of the Trinity River prepared by
Mornson Hydrology Engineering, Inc. dated May 1999. Our initial review
comrr~nts are summarized below.
I. Is the propos~ condition HEC-2 model identical to the effective and existing
condition models? Please confirm.
2. Please explain the following items in the storage table (Table 2).
a. What is the 48-acre tract and 10-acre tract? The report mentions the 10-
acre tract only. Please provide either a drawing or an explanation.
b. The FIEC-2 storage models reflect 7 cross-sections. The storage table for
the 48-acre tract reflects 8 sections while the table for the 10-acre tract
reflects 4 sections. Please explain.
3. Please provide cross-sections from both the existing and proposed storage
models so the proposed cut and fill areas can b~ easily identified.
G:~lYDRO~.projectm\O6312402xfeviews',Riv~r~gnffin].doc
05/21/99 FRI 17:01 FAX 9722393820 DALLAS ~ 003
and Associates Inc,
The final review of this CLOMR submittal will be completed once the
information is submiRed.
If you have any questions or comments, please do not hesitate to call.
requested
Very truly yours,
KIMLEY-HORN AND ASSOCIATES, INC.
Michelle Evans
Reviewer
Suzanne Shcaffer
Project Manager
G:~IYDRO~projccts%06312402\n;view~'~,iv~,gnffin3, do~