Station list
Available data
ILLINOIS RIVER BASIN
| 05551900 EAST BRANCH BIG ROCK CREEK NEAR BIG ROCK, IL |
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| LATITUDE 414604 LONGITUDE 0883411 NAD27 DRAINAGE AREA 32.60 CONTRIBUTING DRAINAGE AREA DATUM 700.43 NGVD29 |
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| WATER YEAR | DATE | TIME | PEAK DISCHARGE (CFS) | DISCHARGE CODES | GAGE HEIGHT (FT) | GAGE HEIGHT CODES | HIGHEST SINCE | MAX GAGE HEIGHT (FT) | DATE | TIME | GAGE HEIGHT CODES | NUMBER PARTIAL PEAKS |
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| 1965 | 02/06/1965 | | 680 | | 1.48 | | | | | | | 0 |
| 1966 | 02/10/1966 | | 795 | | 1.85 | | | | | | | 0 |
| 1967 | 04/01/1967 | | 668 | | 1.44 | | | | | | | 0 |
| 1968 | 08/17/1968 | | 243 | 2 | | | | | | | | 0 |
| 1969 | 01/23/1969 | | 542 | | 0.99 | | | | | | | 0 |
| 1970 | 06/02/1970 | | 550 | | 1.02 | | | | | | | 0 |
| 1971 | 02/19/1971 | | 498 | | 0.82 | | | | | | | 0 |
| 1972 | 06/15/1972 | | 1410 | | 3.46 | | | | | | | 0 |
| 1973 | 04/22/1973 | | 744 | | 1.69 | | | | | | | 0 |
| 1974 | 05/16/1974 | | 1580 | | 3.80 | | | | | | | 0 |
| 1975 | 04/18/1975 | | 398 | | 0.40 | | | | | | | 0 |
| 1976 | 03/05/1976 | | 458 | | 0.66 | | | | | | | 0 |
| 1977 | 02/24/1977 | | 382 | | 0.33 | | | | | | | 0 |
| 1978 | 09/13/1978 | | 713 | | 1.59 | | | | | | | 0 |
| 1979 | 03/19/1979 | | 889 | | 2.13 | | | | | | | 0 |