FLOOD07037

• County: El Paso
• Community: Colorado Springs
• Stream Name: Monument Creek
• Basin: Arkansas
• Title: Floodplain Information Report
• Date: 5/1/1971
• Prepared For: Pikes Peak Area Council of Governments
• Prepared By: US Army Corps of Engineers
• Contract/PO #: &&
• Floodplain - Doc Type: Floodplain Report/Masterplan

CLOSS~RY Of TERMS

flood Sb~e, Tr.o stage or elevation at wr.ich overflow of tr.e
~otural ba~kg of a stream or body of ~otor begins i~ tha re~ch

FlOOd. An ovarflow of lands, ~ot normally covered by ~ater, tr.at
are used or u8sble by man. flood. have two ossenti~l chara~toris~
tics. tr.e inundation of l<lnd is te,",porary; end the l~nd is adja-
cent to and inundated by overflow from s river or stream, or an
ocaan,laka,orotherbodyofstandingwater.
Normally. a "flood" is oonsidered as anytamporery rise
in streamflow or stage. but not tr.e ponding of surface ~oter, that
results in signIficant adverse effects in the vici~ity. Adverse
effect~ may include da~age~ fro~ overflo~ of land aroos, temporary
backwater effects in sa~ers and local dr~i~~ge Channels, crootion
of unsanitary conditions or other unfavorable situations by dopoai-
tlon of materials in stream ch~n~el~ duri~g flood recessions, ris~
of ground w~ter coi~cident witr. increased streamflow, ~nd other
probl~01s.

or araa in ~hich th~ elevation is measured.

flood~av. The minin~m area of ~hs flood plain that is required to
convey a flood pe~k of a selected ~agnit~da. This usually consists
of tho most hazardo~s area of the flood plain where water veloci-
ties ere ~ig~ificant. Areas on the la~dward sido of a flood~ey
normally convey little floodflow, altr.ougr. they are inu~dated du.ing
floods.

Intermediate Reoionsl Flood. A flood having a~ average f.eque~cy
cf O::CLJrre"ce in the order of onc8 i" 100 yA~rs "ltr.ough the flood
may occur i~ sny ye~r. It is based on statistical a~alyses of
etroamflo~ records available for the wetershed end snalyses of
.~i~fall and runoff characteristics in the ge~eral rsgio~ of the

~ate.shed.

Flond CrH~t. The m~xi~um stage or €lev~tion reacr.ed by the ~atars
of a flood at a given locetio~.

L~f" or Rl~ht 8~nk. The b~nk on.the left or right side of n river,
straa~, or w~tsrcour$e, lo~ki~g downstream.

flood "r~st.

Low StoAl Cr U~dercle~ranco. The lo~sst point of a bridge or otr.er
structure over or ~orO$S a river, strnnm, or ~ater~o~r~~ that ii~it$
the opening through ",hu:h ""tllr flo",",.

flood Peak. The m,,~imum i~stonb~cou~ di~charg8 of a flood "t a
given looatio~. It uaually occur~ <It or ne;lr the time of the

flood Pl"i~. Tha relatively flat ~re~ or lowlandS adjoining the
Channel of a river, Btre~m or watercourse. or ocean. lnke, Or
other body of st~nding ~eter, which h8s been or m8Y Ue QOversd by
flood,,~tet.

Sta~dard Project flood.
~ost sovere combin~tio~

Ths flood thot m~y be expected from tr.s
of ~eteorological and hydrologic~l cc~di.

flood Profile. A gr~ph showing the .elation5hip of ""to,' 9urf~ca
~l~vetio~ to lor.~tion, the l~tter oe~erally expr9ssed ~~ diat~~ce
a~ove moutr. for a ~trs~m of water flo~i~g in an ope~ dhe"nel. It
i~ g"~.cr~lly dr"w~ to ~h",,,, "lJrf~(:~ ~l~vatio~ fer tha craet of a
5~ecific flced, but msy be prepared for conditione at <I give~ ti~e

tio~8 th~t is considared roasonobly cr.~r~~teristic ef the gaograph~
ical are~ in whicr. the drai~age b~sin is loc~ted, excluding ex-
tremely ra.~ comuinutio~~. Peak discharges for these floeds are
ganerally about 40% to 60% of tr.e probable ma~imum floods fe. the
Same basins. Sech floods, es used by the Corps of Engi~e8rs, ere
lote~ded a5 practicable exprossions of the degree of prote~tion
that shovld be sought in the deeig~ of flood control works, the
Faib.e of "hid, mi~ht be disastrO\I$.

0" shge.

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