FIRM-931019DA. vl. DOWDEY AND ASSOCIATES,
CIVIL ENGINEERS
16250 DALLAS PARKWAY SUITE 100
DALLAS, TEXAS 75248
(214) 931 -0694 FAX (214) 931 -9538
Y .
October 19, 1993
Mr. Kenneth Griffin, P. E.
City Engineer
City of Coppell
255 Parkway Boulevard
Coppell, Texas 75019
Re: October 15, 1993
Proof Draft of the proposed
Flood Insurance Study
For the City of Coppell
Dear Ken:
I have briefly reviewed the above referenced Flood Insurance Rate
Map. I have noticed a few areas of concern based on my knowledge
of Coppell.
1. The southeast corner of Cowboy Drive and Parkway Boulevard
appears in the flood plain. The elevation of this
intersection is 468± to 469 ±. The 100 -year water surface is
463.5 ±.
2. A minor error in elevation was noticed for the minor branch of
Denton Creek, approximately 1000' north of Parkway Boulevard
and 500' east of Coppell Road. The elevation shown is 446.
I think the intent was to show an elevation of 466.
3. A significant area of land immediately east of the Service
Center is shown to be inundated by the 100 -year storm,
however, the 1992 aerial topography (issued in 1993) shows
that some of the property is 0' to 3' above the water surface
of 452 ±.
Mr. Kenneth Griffin
October 19, 1993
Page 2
4. We have been working for over a year to correct the error
which affects the Gibb's Station subdivision. The October 16,
1991 FIRM more correctly shows the situation. We have
provided recent aerial topographic confirmation of our "As-
Built" situation to assist you in reviewing this area.
I understand that this; process has been rather lengthy and I hope
that the above data assists you in making corrections to the map
prior to publication.
If I can assist you, please contact me.
Sincerely,
r
William A. Anderson, P. E.
WAA; j rb
FLENAUGFLOOD