  ****SOURCE UNKNOWN-- SUBMERGED INTAKE CRIBS WAS APPLIED BEFORE 1972 TO THE LAKE SURVEY CHART BEFORE NOS TOOK OVER THE CHART.
  L1830/76-- ADDED "DEPTH OVER CRIBS 13 FT" TO SUBMERGED INTAKE CRIBS AT LAT. 41/42/03.03N, LONG. 87/30/26.71W. (ENTERED 4/05