CF-Andrew Park 1-CS 921211ALBERT H. HALFF ASSOCIATES, INC.
ENGINEERS * SCIENTISTS · SURVEYORS
DALLAS · ARLINGTON · CHICAGO · FORT WORTH
8616 NORTHWEST PLAZA DRIVE · DALLAS TEXAS 75225
21,4'739-009,4 · FAX 214 739-0095
December 11, 1992
AVO 12239
Mesa Design Group
2612 Thomas Avenue
Dallas, TX 75201
Atm:
Re:
Steve Giovannini
Request for Conditional Letter of Map Revision on Denton Creek in Coppell, Texas -
~ Brown Ir. ~unity Park ~
Dear Steve:
Enclosed please find one origi~aal and three copies of the above referenced report. The
following distribution of these reports is suggested:
Ken Griffin - City Engineer, City of Coppell: original and one copy
Rick Weiland - Parks Department, City of Coppell: one copy
Mesa Design Group: one copy
The original Form 1 should be signed by Ken Griffin in both spaces provided on page 4 of 4.
I will need a copy of this signed page to go into the other copies. I will distribute:
· Copy to FEMA - Region VI
· Copy for COE - 404 permit
An extra copy will also be provided for Texas Parks and Wildlife after the signature page has
been added.
There is also a draft letter in the front of the report for the City of Coppell. Our usual
procedure is to have the city re-type this leuer on letterhead and mail the report to:
Federal Emergency Management Agency
1725 I. Street N.
Washington, D.C. 20472
Arm: Alan $olmson
TRANSPORTATION
WATER RESOURCES · LAND OEVELOFqvlENT
SURVEYING * GLOBAL POSITION~NG SYSTEM
LANOSCAP[ ARCHITEC'[ tjRI~
MUNICIPAL · ENVIRONMENTAL
· REMOTE SENS/NG AND MAPP~ING
PLANNING
· ST I~,.JCT URAL
ALBERT H. HALFF ASSOCIATES, INC.
ENGINEERS · SCIENTISTS · SURVEYORS
Mesa Design Group
December 11, 1992
Page 2
I can also mail out the original, after signatures, if you would prefer. We need to send Out as
soon as possible.
This report basically completes the hydraulic study of Denton Creek. However, the
interior drainage study, analysis of the Heartz Road channel and additional detail on the results
of the fully developed watershed modelling will be provided in the overall park drainage study
report (Note: Fully developed computed water surface elevations, Table 4A-5, are included in
the FEMA report for informational purposes). We have started a mock-up of this report.
However, additional coordination with Dowdy & Associates may be required to complete the
analysis of the Heartz Road channel. A draft of this report will be provided by January 12, 1993,
even if this analysis has not been totally completed.
Please feel free to call if you have any questions or comments. If you would like for us
to send the report to Washington, I can pick up the letter and original report from the City on
Monday.
Yours very truly,
ALBERT H. HALFF ASSOCIATES, INC.
Hansen, P.E.
Enclosures
TRANSMITTAL LETTER
PROJECT:
PROJECT NO.:
Andrew Brown Park
91165
DESIGN GROUP
FUld, LtG wORKS
DATE:
December 14, 1992
TO:
Rick Wieland
City of Coppell
255 Parkway Boulevard
Coppell, Texas 75019
We transmit:
(X) Herewith ( ).Under separate cover via
( ) In accordance with your request
For Your:
( ) Approval (X') Distribution to parties
( )Review&Comment ( )Record
(X) Use ( )
The following:
( ) Drawings
( ) Specifications
( ) Change Order
( ) Shop Drawing Prints
( ) Shop Drawing Reproducibles
(X') Request for conditional letter of map revision
Copies Date Rev. no. Description
3 Request For Conditional Letter of Map Revision
1 Letter from Albert Halff
REMARKS: I will call you Monday afternoon to discuss.
COPIES TO:
(With enclosures)
( )
()
()
()
BY:
V. Steven Giovannini
2612 Thomas Avenue ? Dallas fe,~:. ?5204