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<br />20 <br /> <br />. <br /> <br />Hydrology <br /> <br />. <br /> <br />Water is a critically important resource in the arid <br /> <br />climate of Ft. Collins. Its significance to man and <br /> <br />agriculture will be more completely explained under the <br /> <br />. <br /> <br />topic water development. As a natural resource, the river <br /> <br />,is the prime factor in the lush vegetation along the <br /> <br />stream and the wildlife which lives there. Its history of <br /> <br />. <br /> <br />and present threat of flooding are factors which must be <br /> <br />taken into account. <br /> <br />Floods. Flash floods were a more common occurence in <br /> <br />. <br /> <br />the 1800's and early 1900's than today. Ft. Collins has not <br /> <br />had a large flood on the Poudre River in the memory of most <br /> <br />present residents of the city. Some of the larger floods <br /> <br />. <br /> <br />are listed in the following table. <br /> <br />Flood Peak Discharges and Dates <br />Cache La Poudre River (29:13) <br /> <br />. <br /> <br />. <br /> <br />Year <br />1891 <br />1901 <br />1904 <br />1930 <br /> <br />Date <br />9 June <br />21 May <br />20 May <br />31 May <br /> <br />Peak Discharge (cfs) <br />21,000 <br />12,000 <br />21,000 (greater than) <br />10,200 <br /> <br />Additionally, it is believed that the 1864 flood that <br /> <br />. <br /> <br />caused the destruction of Camp Collins was approximately <br />21,000 cubic feet per second. In reviewing the above table, <br /> <br />it should be kept in mind that 5,000 cfs begins to exceed <br /> <br />. <br /> <br />the channel capacity of the Cache La Poudre River through <br /> <br />Ft. Collins. Thus, the above floods could have quite a <br /> <br />. <br />