Laserfiche WebLink
<br />. <br /> <br />t <br /> <br />e <br /> <br />t 71A <br /> <br />7/71B <br /> <br />l 71B.l <br /> <br />/071B.2 <br />~,<!i- <br /> <br />000214 <br /> <br />The....on Clear Creek (period of record 1946 - 1995; drainage area of 67,1 square <br />miles; elevation at 8,885 feet) indicates that the year-round existing CWCB instream <br />flow of 15.0 cfs is met 95% of the time or more during the summer, but, only around <br />25% of the time during the winter. The winter range is from 5 to 35 cfs averaging <br />around 15 cfs, The low portion of the USFS high flow range (346,0 cfs) is met 1 % of <br />the time in May, 20% of the time in June and 10% of the time in July, The high portion <br />of the USFS high flow range (594,0 cfs) is met 0% of the time in May, 5% of the time in j <br />June and 1% of the time in July, <br /> <br />North Cottonwood Creek <br />QP at sec 9 - 14S - 79W; 100 feet upstream of the east section line (forest boundary) <br />Amount: The existing CWCB flow recommendation for a base flow of 7.0 cfs year- <br />round is acceptable and needed for fish survival at the QP, <br /> <br />There is no .-.on North Cottonwood Creek. <br /> <br />Cottonwood Creek <br />Deleted, split into Middle and South Cottonwood QP's, <br /> <br />",...,,~ f~/c."...."....,,- . tJ.. I>h/c.oL;,- <br />Middle Cottonwood Creek- r - >-""e'_<-&> <br />. <br />A new QP was located at sec 24 - 14S - 80W; just above confluence with Huges Creek <br />Amount: The QP will be moved upstream above the lake to help water users. The <br />existing CWCB base flow of 10 cfsyear-round is acceptable and needed for fish <br />purposes, The USFS requests a bi"h fin", for 20 days between May I and July 15 of at <br />least 70% of bankfull and up to 120 % of bankfull (quantified as 110,0 cfs to 188,0 cfs) <br />to transport heavy sediment loads caused by natural erosion, and to maintain channel ' <br />capacity, geometry, and aquatic habitat in this alluvial stream, The Group wanted this <br />definition (limits) of the high flow request and assurance that there would be some <br />upstream exchange potential particularly during runoff, <br /> <br />-r .-./)/.:..- <br />J-'" ~oi(" <br />1_ r"",4 <br />"1" <br /> <br />ID Itf <br /> <br />There is no "",,e on Middle Cottonwood Creek, . <br />.,.. ..foIt> I!)vjea:hoYl <br />South Cottonwood Creek uffoQ.<~ /lr/;..- '" Iff' ,pee.. <br />New QP at sec 2 - 158 - 80W; 100 feet upstream of the north section line <br />Amount: The QP will be moved upstream above the lake to help water users, The <br />existing CWCB base flow of 10 cfs year-round is acceptable and needed for fish <br />purposes, In addition, the USFS requests a hi.\!h flow for 20 days between May I and <br />July 15 of at least 70% of bankfull and up to 120 % of bankfull (quantified as 108,0 cfs <br />to 185,0 cfs) to transport heavy sedimentloads caused by natural erosion, and to <br />maintain channel capacity, geometry, and aquatic habitat in this alluvial stream, The <br />Group wanted this definition (limits) of the high flow request and assurance that there <br />would be some upstream exchange potential particularly during runoff, <br /> <br />"11-1 f' <br /> <br />There is no gage on South Cottonwood Creek, <br /> <br /> <br />~ 75A Chalk Creek (2 alternatives discussed to current QP) <br /> <br />7 <br /> <br />II ,~_i <br />