FLOOD09727

• County: El Paso
• Community: El Paso County
• Stream Name: Dirty Woman Creek
• Basin: Arkansas
• Title: Dirty Woman Creek and Crystal Creek Drainage Basin Planning Study
• Date: 6/1/1992
• Prepared For: El Paso County
• Prepared By: Kiowa Engineering Corporation
• Floodplain - Doc Type: Floodplain Report/Masterplan

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also proposed at the Woodmoor Drive crossing along with an outlet SlIUClUre, These
culverls are to carry the lOO-yearrunoff.
LFDW.A.24: For th.is segment lOO-year channelization has beCtl recommended
for further evaluation. This constitulcS approKimately 1.265 fcel of lined channel along
with thirteen drop suuctures, An Outlet structure with curved concrete check is
reconunended to dissipate energy.
LFDW.A-25: For this segmt'n1 selective improvements are recommended for
furtl1erevaluation. ImprovemenlS 10 the.,eseg1Tlenti.1cludes a 6's4'corn:rete box culvert
with an outlet iitructure at the Autumn Way crossing which includes roadway annoring.
Approximately 230 feet of bank slope protection along with twO drop srructures are
recommended.
LFDW.B.26 through LFDW.B-29: For these segments selective Improvements
are recommended for further evaluation, Improvements to these segments include twin
7'x4'concrete box culverts at both crossings of Deer Creek Road,a lO'x5'concretebox
culvert at the intersection of Deer Creek Road and White Fawn Drive, and a twin 6'x4'
concrete box culvert at Woodmoor Drive. All of these crossings are to provide capacity
for the lOO-year flood event. rmprovemen~~ also include outlet stabilization for all the
proposed culvens along with approximately 690 feet of low flowcahnne1 protection and
approximateJyfivedropstruclUres,
CC-A-3l: For this segment lO-year channelization is recommended for further
evaluation, The improvemenl~ include approximately 565 feet of lO.year channel with
one drop suucmrc. Three :;ldc::ion:Jl 12" CMP's :1Je reeommended to b<: add<'d to the two:>
existing CMP's under North Monument Lake Road in onler to pass the l()(l-year storm,
CC.A.32: For this segment the floodplain preservation or do-nothing altemative
is recommended for further evaluation.
CC-8.33 through CC-8-35: For these segments channelization is recommended
for further evaluation. Improvements to these segments include approximately 525 feet
of channelization and approximately 205 feet of existing channcl repa ir and stabilization.
CC.8-36: For this segment selective Improvements are recommended for further
evaluation. Improvements to this segment include two 60" Rep's under the embankment
at Beacon Lilt: Road with outlet protection and roadway slope stabili~,atinn.
CC-R-.": For thi, >egment the floodplain preservation or do. nothing alternative
isre~ommendcdforfurtherevaluation.
CC-C.38 through CC-C-40: For these seg:ments selective improvements art'"
recommended for further evaluation. Improvements to these ,egIT!Cnts include extending
a IO'x6' concrete box culvert from the existing 14'xlO' concrete box culvert at the

Interstate under the Frontage Road in order to pas, the lOO-year stonn and eliminate the
current flow split, Two 42" RCP's with outlet protection are recommended at Willow
Park Way to carry the lO-year storm. Two additional 6\)" CMP's at Decr Creek Road
with outlet protection are recommended, One 60" CMP already exist~ under Deer Creek
Road. This will provide capacity to carry the lOO-year storm. A 5'x)' concrete hox
cl,llven is recommended near Immigrant Trail East along with outlet proteetion to carry
the lO-yearstorm and help reduce the surface flooding around the existing sU"Uctu res,

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