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Last modified
1/29/2010 10:12:01 AM
Creation date
10/5/2006 3:10:10 AM
Metadata
Fields
Template:
Floodplain Documents
County
Elbert
El Paso
Community
Elbert and El Paso Counties
Stream Name
Kiowa Creek, Bijou Creek
Basin
South Platte
Title
Flood Problems and Conditions in the Kiowa, Bijou, and Boxelder Creeks
Date
8/11/1949
Prepared For
State of Colorado
Prepared By
CWCB
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br />~. <br /> <br />\ <br />I <br />" <br /> <br />WATERSHED MANAGEMENT - MANITOU EXPERIMENTAL FOREST <br /> <br />'\ <br /> <br />Research results obtained by the Rocky Mountain Forest and Range <br />Exxperiment Station at its Manitou Experimental Forest offer sorne clues to <br />the solution of flood problellS. The Manitou Experimental Forest is located <br />west of the Rampart Range on Trout Creek. This is a typical area of the Front <br />Range in the Fonderosa pine zone. Since the vegetative type, soils and topo- <br />graphy are almost identical to those of the Black Forest. the research re- <br />sults at this station should apply equally well to the area in question. <br /> <br />"The following data are taken from the 1948 annual report of the Rtllcky <br />Mountain Forest and Range Experiment Station I <br /> <br />I' <br />, <br />\ <br />'t <br />t <br /> <br />"Permanent bunchgrass plots show increased run-off <br />and erosion as a result of cattle grazing <br /> <br />"'Since 1938 run-off and erosion have been measured from a series of six <br />permanently established plots in the bunchgrass type at Manitou Experimental <br />Forest. Each plot is 1/100 acre in area and equipped with catchment tanks to <br />provide a measure of run-off and soil movement produced by natural precipita- <br />tion. <br /> <br />, <br /> <br />"In August 1941 treatment was applied by hand-clipping to simulate grazing, <br />but in succeeding years cattle were used and were controlled with an electric <br />fence. Each year two plots have been grazed heavily, two mOderately, and two <br />have been left untouched. Since treatment began there have been a total of <br />59 storms during late spring, summer, and early-fall months, causing measurable <br />run-off, and 10 storms sufficient to produce erosion (see Table 2). <br /> <br />, <br /> <br />I <br />I. <br /> <br /> ~Table 2. -- Run-off and erosion from bunchgrass plots since grazing <br /> treatment began in 1941 <br /> A. Run-off in-inches depth <br /> : Grazing intensity <br /> Year :Number of storms: Hear,f . Moderate I None <br /> . <br /> 1941 3 .02 .02- .01 <br /> 1942 3 .04 .03 .03 <br />^ 1943 6 .16 .16 .12 <br /> 1944 7 .66 .43 .25 <br /> 1945 J,3 1,96 1.05 .83 <br /> 1946 4 .11 .09 .01 <br /> 1947 14 .53 .25 .08 <br /> 1948 ...2 .19 A .06 <br /> - <br /> Total 59 3.67 2.20 1.39 <br /> - - - - ------ ------ - - - - ----- - - - - <br /> <br /> <br />
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