1-02CW373 Supplemental Data

• Case Number: 02CW0373
• Stream Name: South Fork South Platte River
• Watershed: South Platte
• Water Division: 1
• Water District: 23
• County: Park
• Instream Flow App - Doc Type: Supplemental Data

Segment: Outlet Antero Reservoir to Middle Fork South Platte River
Upper Terminus: Outlet Antero Reservoir at
(Latitude 38° 59' 37 ") (Longitude 105° 53' 40 ")
Lower Terminus: Middle Fork South Platte River at
(Latitude 39° 00' 40 ") (Longitude 105° 44' 23 ")
Counties: Park
Length: 11.8 Miles
USGS Quad(s): Antero Reservoir, Antero Reservoir NE, Hartsel, Sulphur Mt
ISF Flow Recommendation: No ISF Recommendation/No Data Collected
Summary
The information contained in this report and the associated instream flow file folder forms the
basis for staff's instream flow recommendation to be considered by the Board. It is staff's
opinion that the information contained in this report is sufficient to support the findings required
in Rule 5.40.
Colorado's Instream Flow Program was created in 1973 when the Colorado State Legislature
recognized "the need to correlate the activities of mankind with some reasonable preservation of
the natural environment" (see 37 -92 -102 (3) C.R.S.). The statute vests the CWCB with the
exclusive authority to appropriate and acquire instream flow and natural lake level water rights.
In order to encourage other entities to participate in Colorado's Instream Flow Program, the
statute directs the CWCB to request instream flow recommendations from other state and federal
agencies. The Colorado Division of Wildlife (CDOW) recommended this segment of South
Fork South Platte River to the CWCB for inclusion into the Instream Flow Program. The South
Fork South Platte River is being considered for inclusion into the Instream Flow Program
because it has a natural environment that can be preserved to a reasonable degree with an
instream flow water right. The CDOW is very interested in protecting stream flows in the
stream reach because they own and lease land along this section of the South Fork of the South
Platte River.
South Fork South Platte River is a tributary of the South Platte River. This river is
approximately 32.3 miles long. The South Fork South Platte River originates southwest of
Fairplay at approximately 11,715 feet and terminates at the confluence with the Middle Fork of
the South Platte River at approximately 8,800 feet. The river is located in Park County. The
total drainage area of the river is approximately 200 square miles. The South Fork South Platte
River generally flows in an easterly direction. There are no significant tributaries to the river
within the reach. The subject of this report is a 6.7 mile segment of the South Fork South Platte
River beginning at U.S. Highway 285 and extending to the East Section Line of Section 24
Township 12 South Range 77 West of the 6th Principal Meridian. (see Figure 1). This segment is
located south of the Town of Fairplay. To date, the staff has received only one recommendation
for this reach. This recommendation is discussed below.
Instream Flow Recommendation(s)
Trout Unlimited has recommended a 16 cfs summer flow and a 4.0 cfs winter flow (See
Appendix B).
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