Riverchase(3)-CS 880720NDiV NAT'H'AN:i ? AiER
CONSULTING ENGINEERS[ INC.
Attention: ~. Matthew ~ler ' a'' ' ' r ''ti11II ~{g~. 111~
Tec~ical Operations DMsion "']~~
500 C St:.S.W.
W~gton D.~ ~ ~
Ers, in A. Meyer. P.E.
EAMJrdp
Enclosures (2)
Sincerely,
NATHAN D. MAIER
CONSULT/NG ENGINEERS. INC.
which will show the project as removed fi-om the
revised FBFM when it is issued,
We would appreciate a copy of the
City of Coppell
Three NorthPark/8800 N. Central Expw~./Suite"300/Dellao, Texas 7'5231/(~'4) ....
739-4741
NDMNo.: 87-12-150. C ,': ~
.. ' Dear Mi:. Miller: 7; '""
i.:~ On May 16, 1985, the Federal Emergency ManagemenrAge~acy (FEMA)'issued a conditional Letter of Map
Revision (LOMR) for the subject proposed project."A, tl that. time~the.tract was known as the "Lesley Tract,"
and the technical data to support the reclamation was contained.in a report entitled Engineering Report to-
the Dallas County Commissioners Court for the Creation:of Dall..aa~ County Levee Improvement District No
18, and dated October, 1984. . ..... -;';17~:. ;',~ -":-, "-' . ': .... ' -:',': ., .
In October, 198.5, thc Texas Water Commission approved thc Plan of Reclamation and subsequcnQy thc
Northwest Dallas County Flood Control District was created. Construction (filling of thc site and overflow
swale'construction) was to commence by October2, ~1986~ and be completed by October 2, 1988. Thc project
was now known as the "Riverchase Project." - 7~ ")9:-, ' ~,~...,. ~ ' ~ :~ .: ' ,:: '
In 1987, when the Fort Worth District Corps of Engineers revised the Flood Insurance Studies (FIS) for the
Elm Fork of the Trinity River, construction of the proposed project was well under way, and the proposed
~ 7 project was incorporated into the HEC-2 model for thc Elm Fork.' Therefore, the revised FIS for the City of
Coppell' reflects the'"Riverchase Project." ' Enclosed is a c6py of the Work Map used by the Corps in this
restudy. The filled area for the. Riverchase Project and the overflow swale are shown on the west overhank of
the Elm Fork upstream of Belt Line Road and the Southwestern Railroad.
The reclamation phase of this project, fill and overflow swale, is now complete. EncloSed is acopy of the "as-
built" drawing with certification that the fill has been placed to the elevations indicated. I have marked in red.
thc 100-year water surface elevations (with floodway) from thc FIS study. ' :..'-. .
It is our understanding that a .revised Flood Bounda~ and Floodway Map (FBFM) will be issued for Coppell