ST8702-SY 901031 FLOODPLAIN HYDRAULICS STUDY
I
~.1
GRAPEVINE CREEK
Coppe!!, Texas
I
Pre0ared for:
AS-BUILT STUDY OF TFIE
DENTOM TAP ROAD BRIDGE REPLACEMENT
City of Covpell
!
Prepared by:
Kimley-Horn and Associates, Inc.
1266(} Coit Road, Suite 200
I Dallas, Texas 75251
I
I
I
I
- FLOODPLAIN HYDRAULICS STUDY
.- GRAPEVINE CREEK
- Coppell, Texas
Prepared for.
AS-BUILT STUDY OF THE
DENTON TAP ROAD BRIDGE REPLACEMENT
City of Coppell
Prepared by:
Kimley-Horn and Associates, Inc.
12660 Colt Road, Suite 200
_ Dallas, Texas 75251
PURPOSE
-- This submittal is for the purpose of seeking a revision to the regulatory floodway and
designated floodplain for a portion of Grapevine Creek in the City of Coppell, Texas. This
report defines an as-built bridge replacement at Denton Tap Road.
The existing bridge at Denton Tap Road has been replaced with a new bridge consisting of
three 70-foot spans, and extending from stream station 254+22 to stream station 255+42. This
project is on behalf of the City of Coppell, with Ginn, Inc. serving as design engineers.
This as-built study follows an approved condition Flood Insurance Study. (See FEMA
approval letters at the end of this text.)
HYDROLOGY
Discharges used for the current analyses are those of the effective Flood Insurance Study (FIS)
for Grapevine Creek in the City of Coppell, Texas. The 100-year mean recurrence interval
_ discharges have been used to evaluate the effects of the proposed projects. More specifically,
the 100-year discharges range from 10,500 to 11,800 cfs through the project area. The
ultimate-condition 2-year and 100-year discharges were also modeled, as required by the City
of Coppell.
HYDRAULICS
Hydraulic investigations of this study were conducted with the use of the backwater computer
program HEC-2 Water Surface Profiles, developed by the US Army Corps of Engineers
_ (Hydrologic Engineering Center, Davis, California, May 1984, update). Evaluation of the as-
built project has resulted in the generation of four HEC-2 computer models and other support
materials, which are included as the following appendices:
-- Appendix I - Pre-existing condition model as submitted to FEMA by the City of
Coppell, and presently under review by FEMA
Appendix2- As-built conditions HEC-2 computer model for the bridge
replacement
Appendix 3 - HEC-2 encroachment model to determine the floodway configuration
_ for the pre-existing condition
Appendix 4 - HEC-2 encroachment model to determine the floodway configuration
for the as-built bridge replacement
Appendix 5 - Plotted cross-sections for both pre-existing and as-built conditions
Appendix 6- Comparison Profiles of the 100-year water surfaces for the pre-
_ existing and as-built conditions
Appendix 7 - Floodplain work maps of all conditions analyzed in this study
Appendix 8 - As-built construction plans (separate attachment)
The pre-existing model is one that was submitted to FEMA and is presently under review.
This model represents the best available hydraulic analysis.
CI 0-90~G rap~e.~ta~9183.10
RESULTS
Comparisons of the output tables of Appendices 1 through 3 and Table I indicate that as-built
conditions result in water surface elevations in general agreement with the conditions
represented by the pre-existing model.
-- An exception to the agreement with pre-existing conditions occurs at stream station 252+85,
where both proposed conditions scenarios produce an increase in water surface elevation in
comparison to the pre-existing model. Inspection of the plotted comparison profiles of
_ Appendix 6 indicates an anomaly at this section in the pre-existing condition scenario. The
pre-existing condition water surface profile is seen to be greater at the next section 50 feet
downstream, and greater at the next section 50 feet upstream. This anomaly was considered
in the conditional study and approved by FEMA.
The as-built conditions model yield an energy grade line elevation at stream station 252+85
which is lower than the pre-existing condition. Channel velocities at this stream station are
~"~ _ reduced in the as-built conditions model. Thus, an overall improvement in hydraulic
:: conditions at stream station 252+85 is realized in the as-built conditions scenario. The lower
energy grade line elevation produced is also in accordance with the newly proposed City of
Coppell Floodplain Management Ordinance.
Comparison of the floodway models of Appendices 3 and 4 indicate that either proposed
conditions model results in a floodway that is less than or equal to the width of the extended
--- FIS floodway at all locations along Grapevine Creek. The floodways and 100-year floodplains
are depicted on the work maps of Appendix 7 for all conditions analyzed in this study.
CONCLUSIONS AND RECOMMENDATIONS
The as-built bridge replacement for Denton Tap Road is documented and technically
-- supported herein. Additionally, as-built construction plans for each project are provided for
review and clarification.
-- It is recommended that the as-built projects be approved for modification of the designated
floodplain and regulatory floodway for Grapevine Creek within the City of Coppell, Texas.
C 10.9~G t-np~oe_s~e~9183.10
TABLE 1
COMPARISON TABLE
Pre- Pre- As- Pre- As- Pre- As-
Existing Existing Built Existing Built Existing Built
Stations Revised Revised 100- yr 100- yr 100- yr 100- yr
Stations Stations (ult) (ult)
20540 20540 20540 471.47 471.47 472.83 472.83
· 5 20975 20975 472.21 472.21 473.73 473.73
· 6 21365 21365 471.87 471.87 473.54 473.54
21690 21690 21690 474.13 474.13 475.49 475.49
I 22220 22220 477 477 478.58 478.58
22600 22600 22600 477.97 477.97 479.59 479.59
2 23170 23170 480.04 480.04 481.37 481.37
23900 23900 23900 482.51 482.51 484.02 484.02
3 483.1 483.1 484.58 484.58
4 483.95 483.95 485.45 485.45
5 484.53 484.53 485.95 485.95
24930 24930 24930 485.16 485.16 486.67 486.67
6 484.98 484.98 486.45 486.45
25085 25085 25085 484 484 485.64 485.64
25135 25135 25135 485.91 485.91 487.28 487.28
25185 25185 25185 486.76 486.55 488.3 487.85
25235 25235 25235 487.1 487.03 488.6 488.36
25285 25285 25280 486.07 487.29 487.75 488.65
25335 25335 25325 488.6 487.53 489.89 488.99
25385 25385 25375 488.08. 487.54 489.14 489
25421 488.83 487.81 490.21 489.37
25422 488.85 487.8 490.23 489.36
25470 25470 489.47 487.84 491.12 489.4
25500 25500 490.01 487.86 491.49 489.43
25542 489.99 487.89 491.46 489.47
25543 489.99 487.93 491.46 489.53
25585 25585 25568 489.96 487.82 491.42 489.37
25635 25635 25618 489.7 487.83 491.19 489.38
25685 25685 25668 490.19 487.95 491.66 489.57
25725 25725 25714 490.36 487.98 491.83 489.63
25785 25785 25754 490.75 488.29 492.25 490.03
25820 25820 25820 490.79 488.31 492.37 490.19
26170 26170 26170 490.9 488.64 492.46 490,4
26550 26550 26550 491.39 490.02 492.82 491.35
26880 26880 26880 492.01 491.08 493.4 492.33
27050 27050 27050 492.56 491.8 494.48 493.92
27400 27400 27400 494.71 494.63 495.62 495.38
27540 27540 27540 494.69 494.62 495.7 495.45
27570 27570 27570 494.93 494.87 495.79 495.57
27620 27620 27620 495.63 495,55 495.91 495.68
30130 30130 30130 502.17 502.22 502.44 502.6
30189 30189 30189 502.14 502.18 502.37 502.51
30190 30190 30190 501.97 502.01 502.18 502.33
30200 30200 30200 502.39 502.43 502.68 502.79
30201 30201 30201 502.98 503,01 503.34 503.43
30250 30250 30250 504.02 504.05 504.51 504.59
31310 31310 31310 506.15 506.16 506.58 506.61
31480 31480 31480 506.44 506.44 506.73 506.75
31500 31500 31500 506.6 506.6 506.93 506.95
31550 31550 31550 507.48 507.48 508.09 508.11
Attachment A
C10-90~Gral~ ne.~tdy~9183.10
- Federal Emergency Management Agency
.~~ Washington, D.C. 20%72 MAR 0
~e Honor~le ~u Duggan Case ~. ~8~6-1 3R O~
~yor of ~e City of Cop~ll
_ P.O. Box 478
Cop~ll, Texas 75019
Dear Mayor Duggan:
~is is in reference to a lenter da~ed Sept~er 23, 1987, s~t~ by
~. H. Wayne Ginn, P.E., Ci~ ~gineer for ~he City of Cop~ll, ~ich was
-- fo~arded ~o us by our R~ion ~ office, in which he r~ues=~ ~a= ~e
F~eral ~ergen~ ~gemen= Agency (F~) review a fl~plain s~y for ~e
propos~ bridge replac~en= project a= DenOn Tap Ro~ o~r Gra~vine Cre~
a~ ~e pro~s~ fl~plain recl~a~on ~rojecn on ~apevine Cre~ jus~ '
ups~eam of DenUon Tap ~. ~is let=er ~dresses ~e pro~s~ bridge
replacement projec: ~ile ~e ups~e~ recl~a~on project is ~ess~ in
a segara=e let=er. Wi~ his letter, ~. Ginn s~mit=~ a flo~p~ain study
- en~=l~ Floodplain H~au~cs S~dy, Grapevine Creek, Co?~ll, ~s,
Sept~er 22, 1987, 9re~r~ by PAWA-Wi~e~ & ~cia=es,
(now ~mley-Horn a~ ~a=~, Inco~ora=~), '~i~ incl~ ~e foll~ing
_ i~s: a descrip~on of ~e ~hodologi~ ~; H~-2 hydra~ic ~e~ of
~apevine Cre~ for ~s~ ~ propos~ co~o~; flo~p~n ~ flo~way
~Rs; ~1o==~ cross se~o~; a cross-se~ion Io~on ~p; a~ ~1o==~ wa~r-
s~ace ~ofiles. ~ ~o receiv~ a le==er ~=~ Jan~ 12, ~988, a~
~de~ dan~ Janu~ 8, 1988, s~=~ by ~. ~rl V. ~e~on, P.E., of
=once~ ~ ~s~ss~ in ~ Ja~ 8, 1988 phone co~a~on ~
~. ~de~on.
~=er reviewing ~e s~==~' ~, ~ have de=e~n~ ~a= ~e
bridge reglacemen= ~oje~ mee~ ~e ~~ flo~p~n ~g~= cri=eria of
~ro~s~, a revision ~ ~e Fi~ ~ance S~y (FIS), FI~ r-~ance
~p (F~), a~ Flo~ ~a~ ~ Flo~y ~R (FBi) for ~e ~ of
would be ~an=~. ~ re, sion ~uld s~w a decre~e ~ ~e ~e (
ye~) Flood ~eva~o~ (B~), ~e r~ia~ f!o~way ~, a~ ~e ~00-ye~
v lion,lain of Gra~e=ine Cr~ ~ ~e ~=i~ of DenOn ~p ~.
"' re~sio~ ~ ~e FIS, ~, a~ FBFM for ~e Ci~ of Conill or ~=e
of ~e flo~ h~a~s in ~e are~ =ould ~fy ~s
~is de=emina=ion is ~s~ on ~e 100-year flo~ ~sch~es =~=~ in ~e
effec=ive FIS for yo~ c~~, ~ does no= =o~er s~s~n= ~es ia
~ersh~ ~aracneris~cs ~a= ~uld =e~ ~ increase fl~ ~s=~es.
developmen= of ~is ~roje~ a~ o~er ~ojec~ ups~e~ could r~= ia
_ in~eas~ flo~ ~scha~es, ~i~, in ~rn, could rest= in in~e~ IO0-year
flood elevator. ~e res~ies of your c~m~i~'~ fl~ h~a~s, ~i~
would ~e into accost ~e ~u~ve effe~ of de~lo9men= on flo~ diseases,
=ould es~sh ~gh~ 10~ye~ flo~ eleva~o~ in ~
Please noUe ~e r~r~n~ f~r flo~y re~sio~ ~ ~n~ in Pa~ 6~
of ~e ~IP regulator, Se~on 65.7 (oopy enclose). ~e ~~ flo~y
represen~ a decrease in ~d~ a= sever~ cr~s sec=io~ ~ ~ ~ ~e
~rrenU r~ula~ fl~y ~ ~e Ci~ of Cop~ll. ~ a flay ~e is
2
~: proposed, a copy of a public notice distributed by the community stating the
!:---- communi~'s inten= to revise the floodway or a statement by the community ~ha=
it has notified all affected property owner~ and affected adjacent jurisdictions
must be su~mi=ted to FEMA. This requirement ,~ill have to be addressed when
_ r--ques~ing a map revision to reflect the effects of the completed project.
This co~i~ional Letter of ~ap Revision is based on minimum floodplain man-
agement criteria established under the NFIP. Your community is responsible
-- for approving all proposed floodplain developments, including this request,
and for assuring that necessary permits required by Federal or State law have
been received. SCare and community officials, based on knowledge of local
condi=ions and in ~he interest of safety, may set higher sr~mndards for con-
s=ruction or may limit development in floodplain areas. If the State of Texas
· ~ or the City of Coppell has adopted more restrictive or comprehensive floodplain
~.~_ management criteria, these criteria ~ake precedence over the minimum NFIP
requirements.
N?IP regulation 44 CFR 60.3(b)(7) requires communities ~ar~ici~ating in the
-- Program ~o "assure that the flood carrying capacity w~thin the altered or
relocated portion of any watercourse is maintained." Without proper mainte-
nance, such as t~he regular clearing of a channelized s~ream, channel modifi-
cation projects '~ill, in time, fail to function as designed, thereby recreating
the flood hazard that they were in=ended ~o ~i~iga=e. T~erefore, upon corn-
pier. ton of ~he project, your community must uphold its responsibility for
assuring t.hat the modified channel is maintained in order ~o preserve its
-- design function.
Upoa compleX, ton of the proposed bridge replacement project, your community may
_ request a revision to the effect, ire FIS, FIRM, and FBFM. The revision request
must include suppor'~in~ data as ou~.l~ned in the enclosed documents, Condi~_tons
and Criteria for Map Revisions and Condi.=ions and Criteria for Floodwa~ Revi-
sions and must address the requiremen=s of NFIP regulation 65.7 as outlined
earlier. Compliance with ~he criteria ~u~ned in these documen=s will
expedite ?EMA's revie~ process, thus aliowin~ the FIS, FIRM, and FBFM for your
community to be revised as appropriate, in a t~ely manner.
Should you have any questions regarding ~his matter, ~lease do no= hesitate to
contact the Chief, Na=ural and Technological Hazards Division of the Federal
Emergency Management Agency in Den=on, Texas, a= (817) 898-9127 or member~ of
our Headquarters s~tff in Washington, D.C., at (202) 646-2754.
Sincerely,
~sk S~%~dies Division
Chef,
Federal Insurance Administration
Enclos ur es
cc: Mr. Carl V. Anderson, P.E.
Mr. H. Wayne Ginn, P.Eo
Mr. John C. Karlsruher, P.E., Ginn, Incorporated
- Federal Emergency Management AgencYa ¢ ,v o
Wa.rahin~:on, D.G. 20~.72
_ J^N 2 0
The Honorable Lou Duggan
Mayor of :he City of Coppell
P.O. Box 478
Coppell, Texas 75019
RE: Coppell. Texas
Flood Insurance S~udy
Dear Mr. Duggan:
This is =o acknowledge our receiD= of %he informa=ion submi=:ed by your
cc~muni=y for considera=ion of a revision ~o =he Na=ional Flood Insurance
Program (NFIP) ~ for your commmi=y.
We have begun a ~m~i~ of =he sub~it=ed informat-%on. Our 'con~ul=inq engineers
mmF be con~a~cinq ~ou ~f =elephone =o discuss flooding pr~lems. Please make
availa~le ~o =ham any ~c~mical flood o= =opoqraDhi¢ infoz~a=ion you ~ay have,
and let =he~ know ab~u= t-~'o~mation =h&t you ~elieve .ay be available 'from
o~her sources. After ali =ethnical da=a have been received and analyzed, the
~aps may be revised, if appropriaDe.
If w~ can be of fur=her assis=ance, please con=ac= men, ers of our Headquar=ers
s=af£ in Washington, D.C., at (202) 646-2754.
Sincerely,
es Division
Federal Insurance Adminis=ra=ion
cc: Mr. Carl V. Anderson, P.E., Kimley-Horne and Associa:es
Mr. H. Wayne Ginn, P.E. Ci:y Engineer, Floodplain Adminis:ra:or, Ci:y of Coppell
P.O. Box 478
-- CooDetl, Texas 75019
The City With A Beautiful Future 214-462-0022
RI¢llVID
DEC 18 Ltl87
December 16, 1987
Federal Emergency Management Agency
-- Federal Insurance Administration
Office of Risk ASsessment
Technical Operations Division
--500 C Street, S.W., Room 422
Washington D.C. 20472
Attn: Mr. Charles A. Lindsey
Re: Case #88-06-13R - Denton Tap Rd. Bridge Replacement
-- Dear Mr. Lindsey:
This'letter is to serve as certification by the City of Coppell
that the bridge replacement project for Denton Tap Road at
-- Grapevine Creek meets the fee exemption requirements of Section
72.5 of =he National Flood Insurance Program regulations. As
mentioned in our October 13, 1987 letter to Ms. Maryetta
-- Cunningham of FEMA, this project is part of a City of Coppell
Capital Improvement Prugram project, and therefore is "for the
public benefit and primarily intended for flood loss reduction to
_ existing development in identified flood hazard areas, as opposed
to planned floodplain development".
Please begin processing our request for a Letter of Conditional
Map Revision as soon as possible. If you have any further
questions, please call us.
S inc,~/~__ .~'~=
City Engineer
HWG/JCK/dsp
cc: Alan D. Ratliff, City Manager
Matthew Miller, FEMA
Maryet~._a Cunningham, FEMA
Carl Anderson, Kimley-HornW
- Shohre Daneshmand, City of Coppell
_ Federal Emergency Management Agency
Washington, D.C. 204-72
IA-RA-RS (316B) (2B)
Case t~88-06--13R
S~te 1 O0
~ar ~r. Karlsruher: jd '~ -
~is is in res~e ~ ~ ~=o~r 13, 1987 le=~r, ~ich ~s fo~ard~ ~ us
by o~ Region ~ offi=e. ~ ~ letter, ~u r~uest~ ~at ~e City of
Cop~ll's pro~s~ bridge replac~en= pr~ at ~n~n ~p Ro~
fr~ ~e fees associat~ ~ ~e review ~f a project of ~is ~.
review of ~is proje~ ~s ~=i~ly r~~ by a Sept-~her 23, ~987 letter
fr~ ~. H. Wa~e ~, P.E., City ~gine~ for ~e Ci~ of Cop~ll.
-- l~ fee for a r~st of ~is ~ is $525.00. Please ~te ~a= Se~ion
72.5 of ~e Na~o~ FI~ !g~ce ~ r~ula~o~ s~tes ~a=: "F~er~,
S~=e, a~ loc~ ~~en~ a~ ~eir ~~ sh~l ~ ~p= fr~ fees for
_ proje~s ~e~ s~or if ~e r~s~r ce~i~ ~= ~e ~~r
is for p~= ~i: a~ ~ily ~~ for fl~ loss r~uc~on
_ appropria~ =e~fi=a~on or ~e i~ f~, fo~~ ~ ~e follo~
F~er~ ~e~en~ ~en=
F~er~ ~~ce
Office of ~sk
T~cal ~ra~
-- 500 C S~ee=, S.N., ~ 422
Was~n, ~ 204~2
If ap~lic~le, ~e i~ fee, in ~e fo~ of a ~e~ or ~ney o~er
Re=~n Receig= R~s=~, ~in 30 days ~ ~e ~=e of ~ Ieg~r. ~e case
n~er referenc~ ~o~ s~uld ~ in=l~ on ~ ~e~ or ~ney o~er for
iden=ifica~on p~ses. Please note ~a= ~e i~al fee is ~e ~-%m~
-- charge for a review of ~is ~; ad~o~ =~ =ould ~ =~r~ u~n
=~91e=ion of our r~iew ~ 9riot ~ is~ce of a co~i~onal L~ depe~ing
on ~e nacre of ~e r~r~ review. Y~ ~11 ~ no=ifi~ of ~e
_ ~=~ 9rocessing cos= if i= is an~ciga=~ ~a=, due ~ ~e ~=en= of
review r~r~, ~e ~=~ cos= ~11 ~c~ $~,500. ~ ~= si~a~on, our
review ~uld be sus~ ~ing ~i==en ~=iza~on fr~ you
:.:. Z~ ~ou have
~~ce ~~ in ~ner~, plebe ~I ~e ~eff, ~~ ~ ~nol~ical
~a~ Division oE ~e F~e~ ~en~ ~~en~ ~enc~ ~ ~n~n, T~,
a~ (817) 898-9127, or ae~e~ o~ o~ ~~e~ s~ in ~ash~on, D.~.,
a~ (202} ~46-2767.
,j
cc: ~. H. Wa~e ~, P.E.
~. S~hre ~nes~, ~1 ~in~r, ~ of Cop~ll
1
* WATER SURFACE PROFILES * ~ U.
* VERSION OF NOVEMBER 1976 * # l'l'
* UPDATED MAY 1984 *
,: " IBI+'PC-XT VERSION
.'::- # RUN DATE 1~9/24/9i~ TTME 17:16:19 # . (!
X X X)OOO(X)( XX)O(X XX)O(O
X XX X X X X
X XX X X
)O00(XXX)O0(O X )C(X)O( XXXXX
!~. X XX X X
X XX X X X
X X XXX)O(XX X)O00(
~9/2~/9~ 17:1~:q9 P~ 1
THIS RUN EXECUTED I)9/24./91) 17:11):2~)
HEC2 RELEASE BATED NOV 76 UPDATED MAY 1984
ERROR CORR -
MOOIFICATION - 51~,51,52,5~,54,55,56
IBM-PC-XI' VERSION
C
T1 C-RAPE¥INE CREEX, COPPELL,DAJL~ COLNTY,~
T2 1~ YEAR EXTEN[]ED FLO(O] I~ SllJl)V
_ T3 ORAP~INE CREEl( --- OEN'r'Q~ TAP Ill)l{) BRIOGE PRI!-EXISTING b-'Tl.l)V ( C-REXIST )
· ]1 ICHECK INQ NINV IDIR STRT METRIC HVINS Q WSEL FQ
J2 NPROF IPLOT PRFVS XSECV XSECH FN Al. LOC IBN CHNIM ITRACE
J) VARIABLE CODES FOR SL~RY PRINTOUT
-- J5 LPRNT NbtlSEC ::::::,-":REQUESTEO SECTION NU~BERSM"~**#***
QT 6. dJ~l~ 75dd. diOR 1 d51111. ~ll~d 11 ~. ~ 1S 1 ~. ~ 525~. ~ 165~. ~ . ~ . ~ .
-- PR~ILE ~I~ M - ~ ~
~I~ ~IFIED ~ ~ ~ ~D ~ ~P~L T~ ~/27/87
X1 ~54~.~e~ 19.~ 1~97.~ 1~. ~ ~O.~e~ 350. ~e 54~.~ .~ . ~8~ .
~ ~7~.~ 116~.~ee ~8.~8 11~.~e ~6.~ 123e.e~ 466.~8e 1385.~e8 466.~8~ 1~97.
~ 46~. ~8 1515. ~Be ~52.8~ 15~. ~e 452.688 1552. ~ee 46~. ~e 1575. ~8 ~66. ~e8 159
~ 47~.~ 16~.~ 478.~8~ 1~.~ ~.~ 1628.~ 48~. 5~ 1653.~8~ .~ .
SECT[~ A~D BY ~ ~[~ ~ ~ T~O 86/27/87
Xl .588 19.~ 45~.~8~ ~.~ 315.~ 415.~E~ 435.~ .~ .~
~ ~e4.~ee .eee ~ez.eee ~.~ ~.~ ~.~e 478.~8 8~,~ 476.~ 1~2.
1
g9/24/9~ 17:1~:19 PA~ 2
SECTIOq AOOED BY NO~ ENGINE~FROINCOPPELL TOPO ld/2)/87
X1 .6dd 12.ddd 37d.ddd 455.~ 3811.W $6~.~dd 39d.d~l .dSd .ddd .ddd
~ 474.d~d 5~5.dee 488.~ 555.~ .~ .dee .~dd .ddd .dSd .Sdd
SECTION ADOEO
X1 2169~.ddd 19.~ed 119~.~)~ 12~.W
OR z~)2.d~B 1Bd~.~O ~SJ.~e~ l~.O
~R ~72.ddd 115d.~d
GR 456.dd~ 122d.~d ~6d.l~Ed 123L~! ~7f.~ 1~.~0 472.~8~ 1395.~8 ~74.8~ 1495.~SE
~ 476.~ 155~.~E~ 478.~ 1~.~ ~.~ 15~,~E ~82.~8~ 161~.~ ,~8~ .~
-- ~ 6.888 7588.888
Xl 1.eec 19.~e~ 76.888 1~.~ 51e.~ ~.~ sse.eee .eec .cee .cee
~ ~.888 .~Se ~78.~ g.~ 476.~ 12.~ ~7~.~Be 22.~ ~72.eee 65.eee
QT 6. ltl)l) 75~)i) . ~i)l) 1 ~)5~)~. ~i)~) 1188B. 8~8 151~. ~ 7588.8~ i 518~. ~8~ . ~ . ~ . ~
PR~ILE S~I~ N - ~ ~I~ l~
~ X1 226~. ~ 16. ~ 1397.~ ~7.~ ~.~ 3~.~ 38~.~ .~ .~ .~
~ ~87.7~ ~.~ 4~. ~ 11~.~ 478.6~ 1~.~ ~7~. 3~ ~233. ~ ~72.~ 1~.~
~ ~.~ 1397.~ ~58.6~ 1~12.~ 4~.~9~ 1425.~ ~61.5~ 1435.~ ~74.7~ 1~7.~
GR ~75.6B~ 15~.~ ~79.3B~ 16e~.~e ~. 1~ 17~.~ ~9~. 2E~ 18~.~ ~97.3~E 19~E.~E
SECTION ADDED BY NOH ENGINEERS FROH COPPELL TOPO ~6/27/87
X1 2.1~l~l 21.8~NI 1~8.1~E8 173.~il 5111.~ 5~.1~ S71l.l~ .~1 . I~i~ll . ~1~1~
__ ~ ~7.~ .~ ~6.~ 18.~ ~.~8 33.~ ~82.~ 5~.~ ~8~.~ 66.~
GR ~78.~ 78.~ ~76.~e 95.~e8 ~7~.~e le8.~8 ~72.~ 113.~ ~Te.~ 118.~
1
~9/2~/9a 17:1 ~: 19 PA~ ~
SECTION ADOED BY AEI F.N~INEERS FROH COPPELL TOPO I)$/e3/87
X1 239g~.JNlll 12.~ 1215.~ 1585. ~lglll 75~.~ 59~. Itl~ 731l. ~1~ .~1
-- ~R /+88.~ll 1 ~i)l).~ll 482.~i 1E25.~ 48~.~ li875.1)~ z~78.t)~)il 1215.19E~ /+7~1. J)ile 1325.~l~
GR ~3.B~ 1~5.~ ~.~ 13~.~ ~70.~ 1~.~ ~8~.~ 1385.~ ~86.~88 1395.~
~CT[~ A~D ~ ~ ~[~E~ ~ ~ T~ ~/27/87
-- X1 3.~BE 19.~ 1~.~ 271 .~ 31~.~8 ~5~.~ ~5. ~B~ .e~e .~EB .~
~ ~.~0~ 12~.eee ~75.~ 1~.~ ~70.~ 172.~ ~.388 181.~ ~.
_ ~ ~7o.~ee 215.eEo ~75.~ 271.~ ~e.~ ~.e~ ~2.~ee 3~7.eee
~ 4SS.aCe 391 .~e ~8.e~ 418.~ 4~.~ ~2.~e ~92.~ ~9~.~ .~
SE~[~ ~O 8~ ~ ~I~E~ F~ ~ T~ ~/27/67
~ ~82. g~6 166.eEe ~8. ~ 1~.~ ~7g.~ 218. g~ ~65.7gE 229.9~ 465.7~ 246. Bee
~ ~78.~9~ 255.~8g ~e.~ 315.~e ~.~ 3~.~ ~8~.8e~ ~5~.~e8 ~86.
~ ~e.eee sse.~ee ~9e.e~ seG.eee ~SZ.e~ SSS.eeC ~9~.~9 665.eee .
SECTI~ A~D ~ ~ ~I~ FR~ ~ ~ ~27/87
Xl 5.1~ilil 18.ililil 98.111ql9 2118. ~lllil 1 ~. ~ 1G~. ~8~ 1~5.8e~ · ~E .88E .
~ ~91 .~ .~ ~9B.~B ~.~ ~8.~B ~.~ ~86.~ 52.~ ~.~
~ ~2.~Be 82.~B8 ~.~e 98.~ ~Te.~e~ 11~.~e~ ~68.~0~ 1~.~ ~.9~ 1~.
__ ~ ~es.eee 41a.~ee ~m.~e ~TS.e~ ~~e.eee 535.e~ .~ee .a~ .eee .cee
GE ~66.4~e 1355.g~ ~6.~ 13~.~e 47e.gge 1375.~ee ~8.~eg 139e.6ee ~4.~96
~R ~86.eee l~e.~ee ~ss.a~ 1~9g.~ ~~e.eee 153~.~8 ~92.~e~ 158e.~e~ ~94.eee
SECTI~ A~O BY ~ ~[~E~ FR~ ~PE~ T~O lg/27/87
X1 6.eee 1 s.eee 1~.6~8 263.eec se.eee 9s.eee 9e.eee .eee .eee .
~ 476.eec le~.eee ~7e.~g ~.a~ ~.8~ 215.eeo ~66.see 225.eee 47e.~ee 245.
1
B9/24/96 17:19:19 PA~
--:::"-:::= E]~ OF HOORE RO AS BUILT AOOED IqOOEL
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GR ~86.7il6 1537. il~ 472. W 156il. W ~67.300 156~. ilile ~67.1 Be 15~. ~ee ~7.28~ 1585.
~ 476.48e 1593.~ ~2.5M 1627.~ ~2.~e 1~1.~0 486.~B 175~.~e ~.~ 178~.BBB
~ 490. Cee lS~e. eee . ~ . ~ . ~e . ~ . ~e . eec . e~ .aee
X1 25135.~ee 16.~eg 1~.~ 1623.~ ~.eee ~.8ee 5g.~g .~ .~e
- ~ ~92.~eg 1~25.e~8 498.~ 1417.~ ~8.~8 1427.6~ 486.~ 1457.~ 4~.6ge
~ ~1.8~ 1see.see ~1.~ lS~.e~ .~.see 1sss.ese ~7. lee 1559.~8 ~7.~ 1578.see
~ ~7.1~ 158~.~e~ ~78.~ 1593.~ 478.~e lS~.eee ~e~. 2~ 1623.~8 ~5. lee 1~3.~e
-~. Xl 25185.~ee 21 .gee 112g.~ 11~.~ ~s.eee ~.eee se.eee .e~ .eec
~: ~ ~.8ge 919.dOe ~92.e~ 1~.~ 4~.9ee lele.~eg ~88.~6 1939.~ ~.eee 1638.090
~ ~e~.eee leSe.~ee ~ez.~e leZe.~ ~.eee lea.eeo ~7e.~ 11~.0~ ~7.7~ 1115.6~
~ ~67.6B8 11~e.eeO ~7.7ee 115Z.TM ~.~g 11~.2ee ~ae.~ee 117~.~g 478.z60 119e.eee
Xl 25255.eec 2e.~e~ le79.3~ 11~.~ 5E.~ee ~e.ee8 se.e~ .cee .eec .eee
~ ~.~96 92~.~ ~92.~ 1~.~ ~.~gg 1619.096 ~88.~9g le~.~ ~6.e~
~ ~7.99~ 11~6.399 ~8.~9 111~.~e ~76.569 11~.8eg 476.969 1155.9~ ~g.~g 1195.669
~ 486 .~e~ 1345.~E8 488.~ 141E.~ 49E. ~E~ 14~.~8e 492.~ 1535.B~ 4~.~
X1 25285.8~ 17. ~8~ 1~. 3~ 1~2.9~0 5~. ~ge ~. ~ 5~. ~ .~ . ~a .
PROFILE SECTION P - SUR~q:'YSECTION 16 OENTONTAP ROAO
Xl 25~7~.~ 35.~ 1352.~ 1472.~ 1~.~ 5B.~I 85.8~ .~ .~ .~
~ 4~.~ gl~.~ 492.~ 1~.~ 492.45~ 1~7.~ 491.8~ 1~32.~
~ ~9.98B 1892.~ ~9.1~ 1142.~ ~.~ 1145.~ ~87.57~ 1225.~ ~7.~ 1242.~g
~ ~9.Sg~ 1191.~ ~9.7M 141g.~ ~.~ 141G.~ ~68.8~ 1426.~ ~9.5M 14~.~
~ ~75.5~ 1~7.g~ ~76.1~ 1~2.~ ~1.6~ 1472.8~ ~84.6~
~ ~6.1~ 155].~g ~.6~ 15~.~ ~.7~ 159~.~g ~86.8~ 16~.~ ~.7~ 1629.8~
~ ~7.1~ 16~.88~ ~8.~ 1~.~g8 4~.~ 177~.~ ~92.~98 1625.ee~ ~.~ 1955.8~
~ 1.85~ z.~6 2.5~ .~ ~.5~ 6.~ 1175.~ 2.252 ~71.1~ 471.~e~
~ le.eee .~ .~ .cee .~ .aee .cee 485.eee ~.~ .eee
BT -43.g~e 91~.~Oe 4~.d~ .~9 1~.~ 492.566
BT .gee le2~.~ee 492.~ .eec 1~2.~ ~1.~
~ ,~9d 1145.899 ~9.57e .g~ 1181.~ ~e.~o
BT .~96 1293.~6E 487.~2g .80~ 1~.~ ~7.~6
-- BT .~e6 1354.~gg 467.~ ~5.986 1~.8~ ~7.91e
~ .~ee 136~.~9e ~6.~e ~5.eee 1591.~ ~6.~e ~85.9e~ 14d2.~ge ~.g2~ ~5.~
BT .~8e 1~78.gge ~.6~ .e~ l~.~eO ~86.88g
BT .~ 1543.~e 486.98e .~ l~3.~Ee ~7.~1e
aT .~e 159~.~ee ~87.28e .~e 1~.~ ~7.~e .~e 1628.~8~ 487.97~ .eee
BT .~ee 1955.~e~ 4~.~ .~ee ,eeo .~ .~e8 .eee .~ .eee
GE 487.7J~ 1 lgt~. ~1~i~ 487. ll~l~ 1242. ~ 486.3~ 1292. ~li~i~ ~,82. ~E 13~. ~8 472.648 1355.
~ ~g.2~ 1363.~ ~8.7~ 13~.~ 471.~ 1~2.~ 46g.64~ 1415.~ ~2.15~ 1~.~
~ ~6.3~ 1478.~ ~5.~ 1~.~ ~.~ 1~3.~ 486.8~ 159~.~ ~7.3~ 16~.~
~ ~8.~E~ 1725.~E 49E.~ 1~.~ 4~.~ 1825.~EE 494.~ I~5.E~E .~ .~
Xl 25585.~ ~.~ 13~.~EB 13~.~ ~ ~ I~B.~E~ 85.~ .E~ .~
~ ~9.~e 1438.~ee ~.~ 1~.~ ~.~ 1623.eae 4cz.eec 16~.~ee 4~.~e 1715.e~e
~ 484.~ 127e.~ee ~82.eEE 1~.~ ~.~ 13E1.~EE 468.8~ 1312.e88 ~9.5E8 1325.
~ 47~.~ 1331 .~eE 474.3~ 1~.~ ~76.3~ 1345.~ ~79.8~ 1359.~ ~.3EE
~ ~87.8~ 1395.~8E ~8.E~8 1~.~ ~.~E 16E5.~E~ 492.B~ 166~.~E~ 4~.~ 1695.
1
:~t ~9/24/9~ 17:1~:19 PA~
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PROFILE SECTION U - SURVEY SECTION 28 ST.LOUIS-~UDINESTERN R.R.
_ X1 3~1g~.~ 58.~ 2138.~ 2263.~8~ 1.~ 1.~ 1.~ .~8~ .~ .~
8T 2.E~E 2138.~E 513.3e8 51E.28E 2263.~ 513.4~ 51E.~88 .~EE .~E .~
GR 517.3~ I~.B~ 516.9~ 11~.~8 516.5~ 12J~.~ee 516.21~ 13~.~ 515.8~ 14~.~
GR 515.3~ 15~.~ 515.~1 16~.~ 51~.6~8 17~.~ 514.2~ 18~.08~ 513.7~ 1g~8.~
~R 51~.4~ 2~ea.~ee 515.2e~ 21~e.~e8 515.3ee 2158.~88 51~.2~ 2158.~eB 5E$.g~ 2153.a~
SR 518.48~ 2155.B8~ 51E.~i~ 215~.~EE ~.EE8 21~.aE8 ~g~.le8 2166.B~ 51~.4~ 2166.~8~
~ 51~.4~ 2167.~E~ ~.1~ 2167.~E 492.5~ 217~.~8 ~91.5~ 218e.~ 51~.~8 2188.~8~
-- ~ 51~.~8~ 2181.~ ~gl.5~ 2181.~E ~7.~ 21~.~8~ 518.~ 21~.~ 51~.~ 2195.~
~ 487.2~ 2195.~ 486.8~ 2~7.~ 51~.~ ~7.~8 518.~8 2~8.~ ~.8~ 22~8.~
C.~ 515.31~1~ 111t1~1~ .~il 515.$1810 11181g.~E 512.~ l~.e~ 5e7.5~ 14Ee.ee~ 5~6.5~ 15~E.EeE
~ 5~.7~e 16e~.~ 5~.7~ 17~.ee~ 5~1.8~e 1766.~ ~97. ~ 18~.~ ~91.1~ 1863.
~ ~8.~ 1869.~ ~8.~ 18~.~ 5~.6~ 19~.~ 511.~8~ 2~.~ 51~, 2~ 21~.
~ 51~.8~ 2~.~ 515.8~ 2~.~ 516.~ 2~.~ 516.8~8 25~.~8 .~ .
X1 ~7]~. Ee8 22 · ~Ee 1586 .~ 1528. ~E ~ · E~ 2]~ · ~ 318~. E~ . B~ . ~ . ~
~ 518.9~ 1B~8.~ 519.~ 11~E.~EB 519.5BE 1~.~ 519.~ I]~E.B~ 519.~
~ 518.$~ 15~.~E~ 517.7EE 1~7.~ 5Es.gEE 15~.~ 5~B.~E 1596.~ 899.~8 16~6.~
~ 5~B.5~ 16~8.~BE 5~7.~ 1628.~ 5~8.1~B 17~.~ 51~.~ 18BE.EB~ 512.9~
~ 51].7~ ~8~.~ 515.8~ 21~.~ 518.6E~ 22~.~E~ 521.~e 2]~.~ 522.7~ 2~.
QT 6. ~ 7~8. ~ I~BEE. 8~ 11~, ~SE 1 ~. ~ $85~. ~8 117~. ~88 . ~E8 . ~B~ .
X1 ~718~.~ 25,~E~ 2227.~E 2~8.~E 125B.~88 165~.~ 257~,~E .~ .~8~
~ 521.6E~ 17~.~E~ 521.5~E 17~8.~E 521.48E 176~. B~ 521.$~E 18E~,~8 521.9~ 1865.
~ 522.~ 1889.~B~ 521.5BB 19~.B~ 519.$EE ~B.~ 515.9~E 21BS.~E 51E.~B 2227.~EE
~ 5~6.9~ 2229.~E 5~6.~E~ 22~.~E8 5~8.7~ 22~8.~8E 512.6~ 2~.~ 517.9~E 2~52.
~ 519.1~ 2~.~ 521.~ 25~.~ 522.~E~ 26~e.~ 52~.4~e 27~.~ 5~.~ 288E.B~B
;:~ ~ 521.5~ 29~E.E~ 5~.~ ~.E~ 52S.~8 ]IEB.~ 52~.~ ~2~E.E~ 52].98E
~9/24/98 17:1 ~: 19
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~ 5~.E~ 5~.~ 529.~ 9~.~ 525.~ 1425.~ 523.~ 2~.~ 515.~8~ 258~.~
~ 515.~E~ 275~.~ 511.~ 276~.~ 515.~ 2775.~ 515.~ 295~.~ 522.~8 ~.~
~ 526.~e ~65~.~ 5~.~ ~.~ 5~2.~ 55~.~ .~ .~ .~
D.S. FA~ ~ N. 9~ Z.H.
~ 1~.~8~ .egg .~ .~ .~ .~ .~ 514.~ 514.~ .~
~ 559.~ .~ ~6.5~ ~.~ 531,5~ 14~.~ 525,8~ 26~g.~ 515,~g ~7~.~
-- ~ 51~.~ 27~.~ 511.~ 2~2.~ 511.~ 2772.~ 51~.~ 278~.~ 515.~ 286~.~
~ 524.7~g 289~ .~ 521 .~ 3~.~ 521 .~g ~g. ~g 526.~ 5~.~ 534.3~g 55~.~
~ 1 .e5g 1 .~g 2.5~ .~ 1~5.~ 4.~ ~92~.~ 7.5E~ 511 .~g 511
U.S. FACE ~ N. 9~ Z.H. 6~
~ .~e~ .8e~ 1 .~ 5~.7~ ~2.8~ .~ .~ .~ .~ .~
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BT 38~.~8e 529.~ .~ 4~.~ 529.~ .~ 55~.~ 5~.3~ .~e
VALLEV SECTZ~ 8E~ [.H. 655 aRraS
~ .~g .~g .~ 263~.~ 529.~ 269~.~ 529.2~ .~ .~g ·
D.S. FACE OF E. BOUND I.H. 635
Xl 3858~.~ .~ee
U.S. FACE ~ E.
THIS ~ EXECUTEO ~9/24/9~ 17:11:45
-- NEC2 RELEASE DATED NOV 76 UPDATED MAY 1984
ERROR CORR -
MOOIFICATION - 50,51,52,53,54,55,56
IBM-PC-XT VERSION
-- T1 GRAPEVINE CREEK, COPPELL, DALLAS COUNTV, TEXAS
T2 51~ YEAR EXTENDED FLO00 INSURANCE STUDY
2
* VERSION OF NOVEMBER 1976
* UPDATED IflAY 1984 *
* IBI+-PC-XT VERSION *
* R~ DATE ii9/24/98 TIHE 17:27:41 * * (!
::::::::::::::::::::::::::::::::::::::::::::::::::::::
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8~/88 17:27:42 PA~ I
THIS RUN E~ECUTED ~19/2z+/91) 17:27:~2
HEC2 RELEASE DATED NOV 76 UPDATED I~A¥ 19~4
ERROR CORE - iil,J~2.i)3,~,iiS,~16
IwlOOIFICATION - 5l),51,52,55,5~,55,56
I BIwI-PC-XT VERSION
C
T1 GRAPEVINE CREEK, COPPELL.DALLAS C~NI~,TEY, AS
T2 1~l YEAR EXTENED FLO00 INSUIU/~E STtJOV
13 ORAPEVINE CREEK --- DENTON TAP ROAD BRID~ AS BUILT STUOV ( GRASBLT )
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J3 VARIABLE CODES FOR SUIWI~IAR¥ PRINTOUT
J5 LPRNT NkX4SEC ::::::::~EQUESTED SECTION NIJI~ERS
3
4
5
6
7
8