CF-Andrew Park 1-CS 930824 R~R I~IUN ~UU~
~U~-~?B~ flON ll:UU
ALBF.~T II. HALFF a$ OClA'rgS INC,
BNGINEE1L~ * SCIENTISTS * $1JRVI~YOR$
D~ · AlitLUVGTON · CHIC, AGO · FORT WOR~
214/?3G.O~G4 · FAX ill,d/?~, ~
003
i", U~
Angust 24, 1993
AVO 1:1239
MESA Dosi~n Cd'oup
2612 Thomas Avenue
A~: S~e Oi~~
Re: ~w Bmr, Ir. ~u~ P~
PBMA L~r of Msp R=visioa
13~ St~wo:
Am you Imow, w~ lmvo rogldvcd lhc Conditional I.etl~' of Map Rovtsion I~t~ ~tac, hed)
for ll~ abow ~fcme~zood proJ~r. This I~t~r basically scares ll~at if tho pmJ~'t t8 ¢onsmmaxl ms
modelled & final Map Revision will bc wan-aflted, The hydraulic anal~S of goatOn Oeek will
only become regulatory upon receipt of the final Letter of Map ReviSion (LOM. R).
The National Flood ~s~an~ l:'rc)jr~ ~ re~flations require ~he fOllowinj
suhmisgon5 to rcccive a i'mal LoKcr of Map l~vision;
"As Built" Construction Plans certified by a Professional Eniin~r re~istcred ia
th~ State wher~ thc pfojccc was Constmc~zl.
Rocords of Compaction (Dcnsi~/) testa by a i{cou~h fca' all fill,
No~c: Fill in thc flood plain must be compacled m 95% Of $1lmdard Prucu~'
Dcnsl~y at optimum moistur~ conum~.
Notification of effected property owners and adjacent jurisdictions.
l~lotc: Usually hitndled by pubUcafion in ~e Iooe. l newspaper.
"As Built" HEC-2 hydraulic analysi~ if different from conditional submiual.
L~tter from communi~ official stath,$ fltat the community will adopt and ~
tho roviscd floodway,
The project is not finalized by FBMA until after a 90 day appeal period. This is also handled
by publicaflo,l in a local newspap~. FI~MA will b~mdlo this publicaflotL
'l~tAN~OH'h~ rttJN
wA~P~ RE,,9OU,RcEr~ * t.,d.~9 DEvELOP'MIeN? ·
Pl. AN~.NO.
11:01 MESAr 'IGN GROUP
FAX NO,
2t~'~11507
004
P. 03
ALBERT H. HA!. FF AS OCIAT . , 1NC.
ENGINEERS · 3GIENTIST~ · ~UEVEYOIi$
lVI~$A De~ Croup
A~$amst 24, 1993
... 'Tl oriSnal schcdul~ for ~,nsm~-iton of ~ ~w Br~n ~r. P~k ~p~n~ w~
se~ up f~ ~1 ~ng ~ ~ c~~ wi~in ~ next 5 ~s. ~tfin~ W~fl~ds - ~ ~
~ ~~, w~ to ~ ~~m~ f~ ~0 ~ ~j~t ~lua;-~ ~n~ ~on~ ~ w~t
~~ ~t. ~ su~J f~a ~~LO~ wo~d ~ h~~ a~~
tf ~o ~ad~ pl~ was ~ ~ one of ~e ~ p~ expkcd. ~e ~ co~g~
~ ~s not ~vo ~ ~p~adon d~ However, · a ~ Ins~ce Stay u~ate h ~~
or ~ ~r of ~p R~ision is su~ oa D~mn ~, FE~ co~ ~ ~
u~ hy~c ~g~is. Th~ W011a~ (~) ~t has a lWO ~ ~.
h now appcars tha~ the uldmato hnprov~ncnts ~ ~e ~k, ~clu~g ~c ~g ~on~
D~ton Tap R~ may not ~ cons~cmd ~ ai le~t 10 ye~, ~ ~la~ ~ hy~u~
m~cl wo~Id r~n thc bas~ m~cl, ~ Mcndfi~ ~ ~c ~p~ "R~u~St for ~on~ ~
of Map ~vi~on on DenOn C~k in Coppcll, Tc~s, ad~w B~wn Ir. Co~ffity ~k% ~e
~plcmd po~ons of me p~k ~H not have fi~al ~ approval and ~c up~ l~y~ic
~al~sis ~11 not ~ insular. ~ote: The Up.ted hy~lc an~ysis includcs a w~r ~
elevation inCrc~c ups~ of ~nton Tap RO~ due to ~ bgd~e ~llfn~ ~cg~ - S~
att~h~ ~blc.) ~ HSht of ~ ~nd~ ~ns~on ~hedule ~ A~i~t~ ~~ods ~t
· e ~ty of ~eH p~ wi~ ~1 ~ in ~a~ I t~luffin~ ~e west b~ field ~. ~e
~vnn~ecs ~ ~s plan ~;
No further fe.~ttl government ponnltttn$ would be rcquked for the proposed pm'k
improvements;
Thc hydraulic analysis of Denton Creek couM be submitted to l=q~/tA and
approved as tho regulatory model (Note: This service is not in H~lff Associates
current 8cope of Scrvlc~s);
Developers submitting projects along Denton Creek upstrea~n of Denton Tap Road
would be required m use the hydraulic model wMch includes the park
improvements; ~nd
Thc project would not have to bc m-submitted to thc Corps of Bnsh~ccrs for an
updated Wetlands (404) p~rmit O'4ote: In ten years the proJe, ct could also have w
be reviewed for compliance with the Corridor Development Ccntflcam (CDC)
crimria which has not been formally adopted to date),
AUG-)O-93 MON ll:O1 ME$~'-IlGN GROUP INO
FAX NO, 2~11507
005
P, 04
I~N~XN'F.~I~ * ~CIENTIgT~ · BURV~YOR~
Au~q~t 24, 1~
P~3
In addition, the City of Coppoll Ens4ne~ring D~trmmnt has
~~ ~j~ Co~le~n of ~ of ~o ~ wo~ ~ow ~im p~t m
~ ~ ~ ~c~c wi~ ~ c~t ~iflon~ ~ ~ Map
Wt nm lwo~o~ia~ with our portion of the current oontrnot, assumln~ no J~..d!_n~ on ~c
w~t ~ ~ t~ ~k. P~e ~ us ~w as ~ ~ ~d~ ~ ~ ~ ~shes m c~m aH
~i~ d~ ~s phas~ ~ su~t ~ a ~ LO~. S~m ~$ f~ ~eso s~s
Attae~ts
ALBERT H. HALFF ASSOCIATE$~ INC.
~an Hansen. P.B.
~UG-30-93 ~ON 11:02 ~E$~ JlGN G~OU? INO
~ NO. 2--"~11507
Federal Emergency Management Agency
Wuhln~ton, D.G. 20472
006
?, 05
Case ~o, I 93-06-091~.
The Honoreb:ie Ha~k WoL£e
Hayor~ C~.~y of CoppoIL
p.o, Box 478
CoppeLI~ T~as 7~019
Co~uni=7: City of goppe~l;
Com~unity Mo.I 480170
104
City En~ineec, City of Coppe~l, co the Federal Emergency
Hip CFTC) fo~ ~he City of Coppell, Hr. ~rLff~n ~eq~s~ed'
ivilu124 tho effec~l that p~opofed ~mpfov~n~o ~o ~drsv BrO~
alone O~ton C~eek~u~d have on th. p~eL/m/nir~ fils and
All da~a ~eqvirod by FI~IA to evaluate ~h£o reques~ vere lubm~ed by
In h~s January $ let,s'r; ~r, Gt~in cez-C££ied Chat th~s pr-eject [s sponsored
by the City of Coppe~l £or public benefit, aaa ~here£o~e; is ~n accordance
v~th eectten~ 72.$ o~ the New,offal ~Lood Zflaurance Pro~ta~ (IIFIF) rc&ulations.
The fees associated ~th :he reviev of th~e Conditional Letter o£ Hap
Revision (CLO~) have been ~a~ved.
Me have revle~ed the data submitted vita respect cO :ha data used to prepare
the ~reX~m~nar7 Fries ~or the CXt7 of Coppoll. We believe theC ~f the
proposed ,p~ojec~ ~s ~onscruc~ed~s described_L~l#e repor~ ee~L~led 'Request
~or Cond~iona~ Le~e~ of Hap derision on oen~0n Creek ia Coppe~, Texas,
And~ev Brown Jr, Co~ty Perk ~o~ cbs City o~ Coppe~l, Texas," pra~ed by
A~bert H. Hl~f Associates, Znc,m dated Oec~ber 1992~ ~hen ~ revision ~o Cbs
e~ and FB~ eould bo warranted. ~s C~ ~s baled on the 4eta used :0
beco~ e~fee~{ve be~or0 i revision can be islued. C~anges~ iE Ony, ~o ~he
data used ~o prepa:e :ha prelimtnary FI~ besots ~: becoMl e~ech~ve ~y
Upon compl~£ou o£ the project and recotp~ o£ cae da~a limted baler, we vitl
ma~e a ~inal dete~m~matXon on.revisln~ the ~ls repo~t and FXR~f.
Cert~f[cation that atL fill p~aced in the cut-te~tly e~fec~ive Xes-year
~loodplain and be~ow the proposed base ~lood eLevatio~ (BFB) i~
compacted to 95 percent of the EIMx~mqAIP, density obtainable v~Ch the
and Materials (ABTH Standard l~698)'for all areas CO be removed :roe the
100-year f~oodpLa~n
AUG-SO-95 MON 11:0~ MESA. IGN GROUP lNG FAX NO. Z~"'q~llbO'F ~,O§
2
e
A~-buLlt HKC-2 hydrau~£c anatys~s of the ~00-year flood
.~,,~,~=~.fl;~..., ',~ .'~ "..~ ~.t ~ .
,... ~ ':"~' .,
A~ ~ ~,~v{n~ approp~{aCe doc~enCicion to show Chat the project his been
~be BFKw vould eh~se am ~ result o~ ~him p~jecC, ~ 90-day lppea~ per~od
~ould be in~a~,d, dvrLns vbich '~o~Ltr officials ~d ~ncerestad persons
#
~ev~sion, we would ~equ~re a letter from you stalin$ ~heC Cbs communiq you, d
sdop~ ~d en£oroe the mod~£1ad floodway, ~ ~h· $~aCe o~ Texas ham
jurisdiction over either the floodway or ice adoption by your communicy~ w~
~uLd need · cop~ of your letter to the appropriate S~e a~ency nocifyin~Le
of ~he ~oodv~y modification ~d a co~ o~ a %eccer fr~ ~hac a~cy tCaCLnI
ice approval o~ ~he modification,
This response ~o Hr. Ori£~n*s reques~ is based on minimum floodplain
Mnasemeuc cr~e~a established unde~ che Xta'Z~. Your
responsible for approv{nK ai~ peopos~d f~oodphin developmene; ~nctudinS chis
rtquosh) a~d ~or assurlnE Chic ~he necessary pe~ required by Federal or
9~to lay have been recelyed. State ~d C0~unicy officials; based on
reeCr~vt or comprehensive ~%oodp~a~n mnagemen~ ~r~cor~6~ ~bose criteria
Cab precedence over che m~n~m~lP requir~nCs.
Ch~e~ Natural and TechnotoS~cat Hazard~ D~viston of FEMA ~n Denton, Texas~
a~ (817) 098-3127, or Hr. John Hasno~ o~ my lcaf£ Ln Washington, DC, aC
8nsine /
Czty of Coppe[[./
Jean hnsenV
Sincerely,
~hief; ~iSk Studi~s ~tvisiofl
Federa~ lnsuranoe Ad~ini~traCion
AUG-20-B3 MON 11:03
0S:0~
JIGN GROUP INO F~ NO, 2--~',~1IB07
00~
?, 07
The Gity Wltl~ A Beautiful Future
P. O, Bo~ 478
Cooi2ell, Texis 75019
~JBLIC WOI~KS DEPT
?32 DI~OP~ST RD.
P.O. BOX 478
COPPELL, TEXAS
F~ ~ (214) 393-7~48
DELIVER PAGES TOt
OUR FAX9 214-393-7648.. : ....
*If yOU do not receiv9 all of the pages, please call back as ~oon
as possible. Telephonu No#(214) 462-8495 and ask for person
sending this fax.
AUG-3D-93 liON
11:00 HESA '-'~,IGN GROUP INO FAX NO. ~llbO'[ P, U1
MESA
FACSIMILE TRANSMITTAl. COVER LETTER
PLItAS~K DELrVER THE FOLLOWING TRANSMI'I'I'AI,
PHONg N0.~
PROJECT NO,:
PROJECT iNA~~~4~I/* f~,,~4~, LOCATION:
' ¢OMMENT~
pages Includlr~8 cover letter. Please respond If all p~acs m'o not rq, ceived.
q