| Location: | LAT. 39-38-04, LONG. 91-14-54, SET IN THE RIGHT FACE OF THE CONCRETE INTERMEDIATE LOCK WALL AND AT MILE 301.2 ABOVE THE MOUTH OF THE OHIO RIVER. |
| Gage: | STAFF GAGE FLOAT WELL AND G.O.E.S. TELEMETERED DATA COLLECTION PLATFORM LOCATED IN TAILWATER GAGE WELL. OWNED AND OPERATED BY THE CORPS OF ENGINEERS. MAINTAINED BY ST. LOUIS DISTRICT, CORPS OF ENGINEERS. |
| General Information: | FLOOD STAGE, 16 FEET. DRAINAGE AREA, 138,200 SQUARE MILES. NOTE: TAILWATER LEVELS EFFECTED BY LOCK & DAM 24 WHICH REACHED MAXIMUM REGULATED POOL (449.0 FEET N.G.V.D.) ON MAY 14, 1941. |
| Records Available: | STAGE, JULY 1938 TO DATE, IN FILES OF CORPS OF ENGINEERS. |
| Mean Stage: | PERIOD OF RECORD, 7.70 FT . 01 JAN 1941 TO DATE, 7.80 FT . |
| Extreme Stage: | PERIOD OF RECORD, DAILY HIGH OF 29.46 FT ON 25 JUL 1993 & PERIOD OF RECORD, DAILY LOW OF -2.90 FT ON 01 JAN 1940 . 01 JAN 1941 TO DATE, DAILY LOW OF 0.23 FT ON 11 FEB 1954 . |
| Zero Gage Datum: | 446.10 ft NGVD 29 NOTE: ADD DATUM TO STAGE TO OBTAIN ELEVATION. |
ALL VALUES RECORDED AT 8AM. STAGE IN FT: