Laserfiche WebLink
<br />r. <br />.I <br /> <br />. <br /> <br />. <br /> <br /> <br />. ;. <br /> <br /> <br />IN REPLY REFER TO' <br /> <br />United States Department of the Interior <br /> <br />BUREAU OF LAND MANAGEMENT <br />Colorado State Office <br />2850 Youngfield Street <br />Lakewood, Colorado 80215-7093 <br /> <br />www.co.blm.gov <br /> <br />CO-932 <br />7250 <br /> <br />DEe 1 9 2,jJ2 <br /> <br />Mr. Dan Merriman <br />Colorado Water Conservation Board <br />1313 Sherman Street, Room 721 <br />Denver, Colorado 80203 <br /> <br />Dear Mr. Merriman: <br /> <br />The Bureau of Land Management (BLM) is writing this letter to formally communicate its <br />instream flow recommendation for Eaglebrook Creek, located in Water Division 3. <br /> <br />. <br /> <br />Location and Land Status: Eaglebrook Creek is tributary to Rock Creek, approximately five <br />miles northwest of the town of Villa Grove. The stream reach that was surveyed begins at the <br />BLM Forest Service boundary, and runs approximately one mile to the BLM boundary with <br />private lands. The entire reach flows through lands owned and managed by BLM. <br /> <br />Biological Summary: Fishery surveys indicate that the stream environment is in stable condition, <br />and supports a self-sustaining brook trout fishery. Channel stability, bank stability, and substrate <br />are good for salmonids. This type of stream environment has steep gradients that typically limit <br />available pool habitat and food supply. If the continued existence of the fishery is to be assured, it <br />is important to provide stream flows that protect the limited amount of available habitat. <br /> <br />R2Cross Analysis: BLM collected two data sets on Eaglebrook Creek. One data set produced a <br />recommendation for summer flows that was within the confidence interval of the R2Cross model, <br />while the other data set produced a recommendation for winter flows that was within the <br />confidence interval. BLM recommends the following flows to protect the natural environment to <br />a reasonable degree: <br /> <br />1.4 cubic feet per second is recommended for the May 1 to October 31 <br />high temperature period. This recommendation is driven by the average <br />velocity criteria. It is important to provide as much usable spawning <br />habitat as possible during this period so that the population can continue to <br />be self-sustaining. <br /> <br />. <br />