FLOOD01032

• County: Statewide
• Community: Pipestone Minnesota
• Title: Problem Identification Report and Appendixes at Pipestone Minnesota
• Date: 4/1/1995
• Prepared By: Greenhorne & O'Mara, Inc.
• Floodplain - Doc Type: Project

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GREENHORNE Be O'MARA. INC.

ENGINEERS . ARCHITECTS . PLANNERS . SCIENTISTS

n ._J2~k__ _ DA TE.J1.1~Jt~

SURVEYORS . PHOTOGRAMMETRISTS

SU8J_c:T __.__J]~~~._t!l!:':!__________ __ SHUT NO....J._n OF___f....

====~~~:~_~~_-~:~~~f~~~: ;:: :::=~~:::~==~::::~=:=:

C:HKD. ay _u___ DATE._______
REV. BY ______n.DATE._______

Ui,) ~C;RE'.>SION [;.VA-nON',) - /c}13

tJRIR 'H - c/O, 2

"fS"""/II\'l-il,J(, ~=>I4,.J - hoOi:> D,s'~4R,n Fo~ ~~S ,,J
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CHM<A(''ffel>l1L'' "

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Table" StaUwide droi1UJ8e-balill choracteMic eqrmtioM
for Ulimati,., ~'i8n.flood discharge. iIIl_

I Q. peak dillCbarge. in cubic feet per second, for a given recurrence interYBl. in years; elM,
contributing drainage area, in square milell; RR, relative relief. in l'eet per mile; DF, drainap
frequency, in number of fint-order .treams per square mile; TTF, 2-year, 24.hour precipitation
intensity, in inchea]

Estimation equation

Averap
Standard standanl error
error of eatinlate of prediction
LogI0 Percent (percent)

A1erap
equiralent
J'USol
record

Number of streamftow-gaging stations .. 164
Qz .. 63.1 CDAo.799 JUrI.643 D~.381 (TTF. 2.5)U11 0.171 41.0 42.2 3.9
Qa .. 98.8 CDAo.'/55 ~.662 D~'3tJO (TTF - 2.5P'- .156 31.2 38.6 U
QI0 .. 136 CDAo.733 JUrI.8M D~.3U (7TF. 2.5)0.801 ,.160 38.2 39.8 6.5
Q25 .. 188 CDA G.7ot JUrI.85Il D~.39S (7TF . 2.6p.810 .172 41.3 43.2 7.8
QI50 .. 231 CDAO.694 JUrI.85ll D~.401 (TTF. 2.6p.491 .186 44.5 4U 9.5
Ql00 .. 277 CDAO.881 JUrI.85ll D,o,409 (TTF. 2.5p.38ll .198 48.0 50.2 U.5

Note: BaaJD eharacterI.tic. are map-eeale dependent. See Appendls A and Appendls B fol'
baain-clull'aeterlstle descrlptioM, computaltioM, ud 1C81_ of ..... to _ for
manWll measureiDenta.