Hydrologic Design of Impounding Reservoirs in Illinois

摘要

This report, an update of Illinois State Water Survey Bulletin 51 (1964, NTIS Accession No. PB-220 198), contains processed hydrologic data for use in the design of reservoirs in Illinois. Part 1 describes the data available and the analytical methods used. Part 2 presents the processed low flow data for 146 stream gaging stations in Illinois. For each flow record, a partial series of low flows for durations to 60 months were developed and extended to 50- or 100-year recurrence intervals depending on the length of original record. Net lake evaporation for durations to 60 months and recurrence intervals to 100 years are presented for 6 Illinois locations.