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Table 1. Historical Sediment Data
<br />Yampa, Maybell Little Snake, Lilly
<br />Water
<br />Year
<br />Discharge
<br />(acre-feet) Sediment
<br />Load
<br />(tons/year) Annual
<br />Discharge
<br />(acre-feet) Sediment
<br />Load
<br />(tons/year)
<br />1952 1,447,177 547,740 727,828
<br />1953 829,208 247,886 268,721
<br />1954 522,182 125,025 178,256
<br />1955 772,587 401,893 233,164
<br />1956 1,033,298 397,647 410,900
<br />1957 1,781,336 607,486 507,000
<br />1958 882,840 511,717 425,000
<br />1960 1,010,000 300,301 931,650
<br />1961 629,300 162,779 438,142
<br />1962 1,492,000 569,128 3,156,957
<br />1963 630,200 203,601 958,285
<br />1964 865,200 318,014 1,221,563
<br />1976 826,300 246,508 382,400
<br />1978 731,628 500,450 507,000
<br />1979 660,582 232,540 417,500
<br />1980 645,121 651,042 557,400
<br />1981 279,388 187,247 248,300
<br />1982 692,174 618,903 570,100
<br />Average's 854,140 407,237 310,765 1,341,319
<br />.L
<br />Average is calculated only for those years with corresponding sediment loads.
<br />The Little Snake measured daily sediment load data is presented in
<br />graphical form in Appendix D-1.
<br />The Yampa River measured daily sediment load data (only 2500 data
<br />points) is presented graphically in Appendix D-2.
<br />The Little Snake and Yampa Rivers water discharge hydrographs for the
<br />period from Oct. 1, 1959 to Sept. 30, 1964 are presented graphically
<br />in Appendicies D-3 and D-4 respectively.
<br />The Little Snake measured sediment data is presented as a function of
<br />time (similar to a hydrograph) in Appendix D-5.
<br />A simulated Yampa sediment hydrograph for the same period (1959-64)
<br />is presented in Appendix D-6.
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