April 29, 2024:  Gates were closed at 5:10pm.
April 30, 2024:  The Big Sioux River is about 10" higher than Lake Poinsett.
May 14, 2024:  Gates were opened at 12:19pm.
May 22, 2024:   Gates were closed at 12:01pm.
May 27, 2024:  Gates were opened at 10:05am.
June 04, 2024:  Gates closed at 8:28am.
June 8, 2024:  Gates were opened at 7:08am.
June 24, 2024:  Gates were closed at 9:24am.
June 25, 2024:  Gates were opened at 7:23pm.

June 27, 2025:  Gates were closed at 8:23pm. 

July 8, 2025:  Gates were opened at 3:50pm.

July 24, 2025:  Gates were closed at 7:30am.

July 27, 2025:  Gates were opened at 1:40pm.

July 28, 2025:  Gates were closed at 8:11am.

August 04, 2025:  Gates were opened at 8:40am.

August 07, 2025:  Gates were closed at 8:04am.

August 11, 2025:  Gates were opened at 5:40pm.

August 17, 2025:  Gates were closed at 8:57pm.

August 21, 2025:  Gates were opened at 7:30am.

August 22, 2025:  Gates were closed at 6:50pm.​

August 27, 2025:  Gates were opened at 5:40pm.

September 21, 2025:  Gates were closed at 8:20am.

September 21, 2025:  Gates were opened at 3:24pm.

*THE BIG SIOUX RIVER NOAA WATER ELEVATION ONLINE IS READ FROM A GAUGE LOCATED NEAR THE OUTLET GATES (yellow dot on this page).   link
*THE DOWNSTREAM READING IS AT A SITE APPROX 8 MILES DOWNSTREAM ON THE BIG SIOUX RIVER WEST OF ESTELLINE (green dot on this page).  link