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<br />COLORADO WATER CONSERVATION , ~ARD <br />INSTREAM FLOW RECOMMENDATIONS <br /> <br />RECOMMENDATION SUMMARY REPORT <br /> <br />STREAM: <br />WATERSHED: <br /> <br />Bennett Creek <br />Rio Grande <br /> <br />ID: 92/3/A-03 <br />DIV: 3 COUNTY: <br /> <br />Mineral <br /> <br />RECOMMENDATION <br />FLOW (cfs): 1.5 (4/1-10/15) <br />.5 (10/16-3/31) <br /> <br />LENGTH (miles): <br /> <br />4.6 <br /> <br />UPPER TERMINUS: headwaters at <br /> lat 37 52 23N long 107 04 3lW <br />LOWER TERMINUS: Bennett Creek Diqersion Struct. at <br /> lat 37 50 DON long 107 07 52W <br />USGS QUADS: Bristol Head, He:s:-mit Lakes <br /> <br />FISH <br /> <br />SURVEY <br />DOW CODE: 47476 <br />SAMPLE SUMMARY: <br /> <br />LOCATION: South of <br />100 ft electrofisheo. <br />4 Rio Grande cutthr~at <br /> <br />DATE: 07/22/80 <br />USFS Road #509 crossing. <br />Sample included: <br />trout (6"-14"). <br /> <br />FIELD SURVEY <br />CROSS SECTION <br />MEASURED FLOW <br />REMARKS: Light <br />Note: <br /> <br />DATE: 07/28/89 <br />LOCATION: South of u$FS Rd. #509 intersection w/creek. <br />(cfs): 0.87 GRAS$LINE WIDTH (ft): 18.7 PHOTOS: 4 <br />r~in while working, fish present. <br />1989 was considered ~ below average water year in Rio Grande Basin <br /> <br />HYDRAULIC ANALYSIS <br />AT RECOMMENDED <br />FLOW (cfs): <br /> <br />AVE DEPTH (ft): 0.20-0.25 <br />\ WET PERIM.: 96\-100\ <br />AVE VEL. (fps): 0.37-0.42 <br />. REMARKS: 1.5 cfs meets 2 of 3 criteria. Lower winter flow (0.5 cfs) <br />meets wetted perimeter criteria. These flows are required to provide <br />good habitat conditions for the Rio. Grande cutthroat, a species of <br />special concern. <br /> <br />1.5 (4/1-10/15) <br /> <br />WATER AVAILABILITY <br />METHOD: Synthesized from USGS method WRIR 85-4086 for Bennett Creek. <br />AVERAGE MONTHLY FLOWS (cfs) <br />OCT NOV DEC JAN FEB MAF APR MAY JUN JUL <br />1.6 1.3 0.9 0.8 0.8 0.9 2.5 9.5 10. 4.3 <br />IMPORTED WATER: None. TRANSBASIN DIVS: None. <br />INBASIN DIVERSIONS: Bennett Creek Diversion Structure and exchange. <br />REMARKS: See attached hydrograph. AS per Division Engineer, senior water <br />rights do not present a water availability problem within this reach of <br />Bennett Creek. <br /> <br />AUG <br />3.5 <br /> <br />SEP <br />2.0 <br /> <br />CONSULTATIONS <br />DOW: Jay SKinner <br />DWR: Steve Vandiver <br /> <br />APPROVED BY: ~ <br /> <br />08/09/93 <br />09/08/93 <br /> <br />DATE:#/- <br /> <br />PREPARED BY: uppendah1 <br />