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<br />OOlutJ5 <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />to the extrapolation of the partial duration series. The annual series differs <br />from the partial duration series as shown in the figure. <br /> <br />6. New Records <br /> <br />On the 8th of June, 1982, the Melvin gage was reactivated (Gibbs et.al., <br />1983). The 9age is located approximately 30 feet upstream from Arapahoe Road. <br />Data collected consists of storm runoff, water quality, stream discharge <br />(determined from current meter measurements, estimates, and previous ratings), <br />precipitation, and sub-basin characteristics. The 1983 records are not yet <br />published. <br /> <br />B. Sediment Transport <br /> <br />1. Bed Materi a 1 s <br /> <br />Samples of sediment were taken from the active portion of the bed of <br />Cherry Creek at these four locations: <br /> <br />a. Crossing of the parks recreation road around Cherry Creek Lake. <br /> <br />b. Crossing of Arapahoe Road. <br /> <br />c. Southwest quarter of Section 32, Township 5 South, Range 67 West. <br /> <br />d. Crossing of West Parker Road. <br /> <br />The samples were taken from the surface of the bed at four places in the <br />cross section. Equal volumes of the four samples were then combined into one, <br />representing the entire cross section. <br /> <br />In the study reach, the bed material is medium sand with a median sieve <br />size of 0.6 millimeters. The gradation coefficient is 2.3. The results of the <br />sieve analysis is shown in Figure-5. There is no significant difference in the <br /> <br />-13- <br />