| Location: | LAT. 39-18-23, LONG. 90-46-40, ON THE LEFT BANK AT MILE 265.0 ABOVE THE MOUTH OF THE OHIO RIVER. |
| Gage: | STEEL SLOPE GAGE. READ, OWNED, OPERATED AND MAINTAINED BY ST. LOUIS DISTRICT, CORPS OF ENGINEERS. |
| General Information: | FLOOD STAGE, 17 FEET. DRAINAGE AREA, 141,000 SQUARE MILES. |
| Records Available: | STAGE, AUG. 1930 TO DATE, IN FILES OF CORPS OF ENGINEERS. NOTE: LOCK & DAM 25 REACHED MAX REGULATING POOL (434.00 FEET NGVD) ON JULY 11, 1939. |
| Mean Stage: | PERIOD OF RECORD, 10.56 FT . 01 JAN 1940 TO DATE, 11.10 FT . |
| Extreme Stage: | PERIOD OF RECORD, DAILY HIGH OF 28.90 FT (ESTIMATED) ON 29 JUL 1993 & PERIOD OF RECORD, DAILY LOW OF 0.10 FT OCCURRING ON MULTIPLE DATES WITH THE MOST RECENT ON 15 DEC 1936 . 01 JAN 1940 TO DATE, DAILY LOW OF 3.00 FT OCCURRING ON MULTIPLE DATES WITH THE MOST RECENT ON 04 NOV 1950 . |
| Zero Gage Datum: | 426.03 ft NGVD 29 NOTE: ADD DATUM TO STAGE TO OBTAIN ELEVATION. |
ALL VALUES RECORDED AT 8AM. STAGE IN FT: