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<br />Table A3. Annual streamflows and estimated annual suspended-sediment loads in
<br />the Gunnison River near Grand Junction, 1950-1984. (Data excerpted from
<br />Elliott and DeFeyter 1986)
<br />Before Blue Mesa Dam
<br />After Blue Mesa Dam
<br /> Total Average Total Average
<br /> Total Sediment Sediment Total Sediment Sediment
<br /> Discharge Load Load Discharge Load Load
<br />Year (AF) (Tons) (T/AF) Year (AF) (Tons) (T/AF)
<br />1950 1,387,000 1,020,000 0.735 1966 1,046,000 550,000 0.526
<br />1951 1,127,000 777,000 0.689 1967 886,500 407,000 0.459
<br />1952 2,625,000 4,270,000 1.627 1968 1,444,000 848,000 0.587
<br />1953 1,331,000 1,100,000 0.826 1969 1,875,000 1,250,000 O.b67
<br />1954 663,500 278,000 0.419 1970 2,253,000 1,690,000 0.750
<br />1955 1,032,000 615,000 0.596 1971 2,224,000 1,230,000 0.553
<br />1956 1,113,000 817,000 0.734 1972 1,199,000 533,000 0.445
<br />1957 3,209,000 6,380,000 1.988 1973 2,083,000 1,690,000 0.811
<br />1958 2,383,000 3,590,000 1.507 1974 1,699,000 912,000 0.537
<br />1959 950,900 522,000 0.549 1975 1,816,000 1,340,000 0.738
<br />1960 1,390,000 1,050,000 0.755 1976 1,314,000 640,000 0.487
<br />1961 1,015,000 622,000 0.613 1977 772,800 322,000 0.417
<br />1962 2,194,000 2,580,000 1.176 1978 1,317,000 878,000 0.667
<br />1963 913,800 441,000 0.483 1979 2,343,000 2,020,000 0.862
<br />1964 1,347,000 1,190,000 0.883 1980 2,249,000 2,010,000 0.894
<br />1965 2,611,000 3,290,000 1.260 1981 1,061,000 459,000 0.433
<br /> 1982 1,704,000 1,020,000 0.599
<br /> 1983 3,147,000 3,840,000 1.220
<br /> 1984 3,766,000 5,320,000 1.413
<br />Mean 0.928 Mean 0.688
<br />Standar d Error 0.110 Standar d Error 0.060
<br />Minimum 0.419 Minimum 0.417
<br />Maximum 1.988 Maximum 1.413
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