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Historical Interest Rates

The table lists interest rates, from the project's inception through the present, for all projects with repayment supervised by the CRSP MC. The latest available interest rate is used for all future interest rate calculations.

The Amistad-Falcon, Collbran, Provo River, and Rio Grande Projects are all assigned the average daily "Yield Rate" calculated by the U.S. Treasury, on an annual basis, for Treasury bonds having terms of 15 years or more remaining to maturity. The calculated yield rate is rounded to the nearest one-eighth of one percent. The yield rate is based upon the bond's interest rate, as well as its market value.

The Colorado River Storage Project and its participating projects Dolores and Seedskadee are assigned the average daily "Coupon Rate", annualized, for the same U.S. Treasury bonds used in "Yield Rate" calculations. The coupon rate is the interest rate that the bond carries upon its face.

FY Coupon Rate
(CRSP) 		Yield Rate
(Non-CRSP)
1940 - 1956 N.A. 3.000
1957 2.875 3.000
1958 2.625 3.000
1959 3.250 3.000
1960 4.125 3.000
1961 2.632 3.000
1962 2.742 3.000
1963 2.936 3.000
1964 3.046 3.000
1965 3.137 3.000
1966 3.222 3.000
1967 3.225 3.000
1968 3.253 3.000
1969 3.256 3.000
1970 3.342 3.000
1971 3.463 5.375
1972 3.502 5.875
1973 3.649 5.500
1974 4.012 5.625
1975 4.371 6.125
1976 5.116 6.625
1977 5.683 7.000
1978 6.063 7.000
1979 6.595 7.500
1980 7.210 8.000
1981 8.605 8.500
1982 9.352 9.000
1983 10.051 9.500
1984 10.403 10.750
1985 10.898 12.375
1986 11.070 11.375
1987 10.693 8.875
1988 10.371 8.500
1989 10.250 9.250
1990 10.075 8.875
1991 9.920 8.750
1992 9.737 8.500
1993 9.503 7.875
1994 9.319 7.125
1995 9.226 7.250
1996 9.134 7.625
1997 9.012 6.875
1998 8.874 6.875
1999 8.703 6.000
2000 8.542 5.750
2001 8.469 6.250
2002 8.315 5.625
2003 8.270 5.500
2004 8.209 4.875
2005 8.077 5.125
2006 7.892 4.625