Observed and urbanization-adjusted annual maximum peak discharge and associated urban fraction and precipitation values at USGS streamgage:
05517500 KANKAKEE RIVER AT DUNNS BRIDGE, IN
| Water year | Segment | Discharge code | Cumulative reservoir storage (acre-feet) | Urban fraction | Precipitation (inches) | Observed peak discharge (ft3/s) | Adjusted peak discharge (ft3/s) | Exceedance probability |
| 1949 | 1 | -- | 7303 | 0.024 | 0.195 | 2980 | 3240 | 0.754 |
| 1950 | 1 | -- | 7303 | 0.024 | 0.499 | 5200 | 5580 | 0.404 |
| 1951 | 1 | -- | 7303 | 0.025 | 0.033 | 3230 | 3500 | 0.715 |
| 1952 | 1 | -- | 7303 | 0.026 | 0.178 | 3380 | 3650 | 0.692 |
| 1953 | 1 | -- | 7303 | 0.027 | 0.159 | 2190 | 2400 | 0.861 |
| 1954 | 1 | -- | 7303 | 0.028 | 0.402 | 3100 | 3350 | 0.738 |
| 1955 | 1 | -- | 7303 | 0.029 | 0.002 | 5300 | 5650 | 0.395 |
| 1956 | 1 | -- | 7303 | 0.030 | 0.180 | 3800 | 4080 | 0.630 |
| 1957 | 1 | -- | 7303 | 0.031 | 0.633 | 3100 | 3340 | 0.740 |
| 1958 | 1 | -- | 7303 | 0.032 | 0.361 | 2730 | 2950 | 0.792 |
| 1959 | 1 | | 7303 | 0.033 | 0.082 | 3850 | 4110 | 0.624 |
| 1960 | 1 | -- | 7303 | 0.034 | 0.028 | 3660 | 3910 | 0.653 |
| 1961 | 1 | -- | 7303 | 0.035 | 0.192 | 3950 | 4210 | 0.611 |
| 1962 | 1 | -- | 7303 | 0.036 | 0.010 | 3900 | 4150 | 0.619 |
| 1963 | 1 | -- | 7303 | 0.037 | 0.259 | 2910 | 3120 | 0.769 |
| 1964 | 1 | -- | 8057 | 0.037 | 0.288 | 1700 | 1850 | 0.917 |
| 1965 | 1 | -- | 8057 | 0.038 | 0.039 | 3000 | 3210 | 0.758 |
| 1966 | 1 | -- | 8057 | 0.039 | 0.059 | 3360 | 3580 | 0.703 |
| 1967 | 1 | -- | 8057 | 0.040 | 0.082 | 3610 | 3830 | 0.664 |
| 1968 | 1 | -- | 8057 | 0.041 | 0.046 | 4120 | 4360 | 0.588 |
| 1969 | 1 | | 8057 | 0.041 | 0.224 | 3800 | 4020 | 0.637 |
| 1970 | 1 | -- | 8057 | 0.042 | 0.094 | 3450 | 3660 | 0.691 |
| 1971 | 1 | -- | 8057 | 0.044 | 0.380 | 2590 | 2760 | 0.817 |
| 1972 | 1 | -- | 8057 | 0.045 | 0.344 | 3140 | 3320 | 0.742 |
| 1973 | 1 | -- | 8057 | 0.047 | 0.439 | 3720 | 3920 | 0.652 |
| 1974 | 1 | -- | 8057 | 0.048 | 0.121 | 3530 | 3710 | 0.683 |
| 1975 | 1 | -- | 8057 | 0.050 | 0.301 | 3510 | 3690 | 0.687 |
| 1976 | 1 | -- | 8057 | 0.051 | 0.741 | 4310 | 4500 | 0.563 |
| 1977 | 1 | -- | 17057 | 0.053 | 0.484 | 3670 | 3840 | 0.664 |
| 1978 | 1 | -- | 17057 | 0.054 | 0.296 | 4540 | 4720 | 0.526 |
| 1979 | 1 | -- | 17057 | 0.056 | 0.149 | 4550 | 4730 | 0.525 |
| 1980 | 1 | -- | 17057 | 0.057 | 0.119 | 3170 | 3300 | 0.745 |
| 1981 | 1 | -- | 17057 | 0.058 | 0.205 | 4890 | 5060 | 0.474 |
| 1982 | 1 | -- | 17057 | 0.059 | 0.540 | 5870 | 6060 | 0.351 |
| 1983 | 1 | -- | 17057 | 0.060 | 0.205 | 4480 | 4630 | 0.541 |
| 1984 | 1 | -- | 17057 | 0.061 | 0.251 | 3320 | 3440 | 0.724 |
| 1985 | 1 | -- | 17057 | 0.062 | 0.485 | 5370 | 5530 | 0.410 |
| 1986 | 1 | -- | 17057 | 0.063 | 0.223 | 3190 | 3300 | 0.745 |
| 1987 | 1 | -- | 17057 | 0.064 | 0.169 | 3530 | 3640 | 0.693 |
| 1988 | 1 | -- | 17057 | 0.064 | 0.070 | 3390 | 3500 | 0.715 |
| 1989 | 1 | -- | 17057 | 0.065 | 0.060 | 3450 | 3560 | 0.707 |
| 1990 | 1 | -- | 17057 | 0.066 | 0.391 | 4250 | 4370 | 0.587 |
| 1991 | 1 | -- | 17057 | 0.068 | 0.179 | 4930 | 5050 | 0.476 |
| 1992 | 1 | -- | 17057 | 0.070 | 0.134 | 2270 | 2340 | 0.869 |
| 1993 | 1 | -- | 17057 | 0.071 | 0.411 | 4820 | 4920 | 0.495 |
| 1994 | 1 | -- | 17057 | 0.073 | 0.061 | 4310 | 4390 | 0.582 |
| 1995 | 1 | -- | 17057 | 0.075 | 0.103 | 3550 | 3620 | 0.698 |
| 1996 | 1 | -- | 17057 | 0.076 | 0.079 | 4650 | 4720 | 0.527 |
| 1997 | 1 | -- | 17057 | 0.078 | 0.375 | 4500 | 4560 | 0.554 |
| 1998 | 1 | -- | 17057 | 0.080 | 0.266 | 4360 | 4410 | 0.579 |
| 1999 | 1 | -- | 17057 | 0.081 | 0.196 | 4140 | 4180 | 0.615 |
| 2000 | 1 | -- | 17057 | 0.083 | 0.815 | 3310 | 3340 | 0.740 |
| 2001 | 1 | -- | 17057 | 0.084 | 1.530 | 3920 | 3950 | 0.648 |
| 2002 | 1 | -- | 17057 | 0.084 | 0.362 | 4180 | 4200 | 0.612 |
| 2003 | 1 | -- | 17057 | 0.085 | 0.336 | 2950 | 2970 | 0.789 |
| 2004 | 1 | -- | 17057 | 0.086 | 0.037 | 2960 | 2980 | 0.788 |
| 2005 | 1 | -- | 17057 | 0.086 | 0.018 | 4520 | 4540 | 0.557 |
| 2006 | 1 | -- | 17057 | 0.087 | 0.106 | 2980 | 2990 | 0.786 |
| 2007 | 1 | -- | 17057 | 0.088 | 0.280 | 4170 | 4180 | 0.615 |
| 2008 | 1 | -- | 17057 | 0.088 | 0.075 | 5420 | 5430 | 0.424 |
| 2009 | 1 | -- | 17057 | 0.089 | 0.102 | 5510 | 5510 | 0.413 |