With one to four inches of liquid residing in the snowpack near and north of Interstate 90 at the start of the month, a more or less ideal melting of the winter snowpack in early March produced minor flooding along much of the upper and middle portions of the Big Sioux River Basin.

Flood in LINCOLN, SOUTH DAKOTA
From 08-MAR-20 23:00:00 to 20-MAR-20 07:00:00 (CST-6)
Location: SHINDLER
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Big Sioux River at Brandon (gage site BBSS2) crested 1.23 feet above flood stage on March 15.  Significant flooding of agricultural lands occurred upstream and downstream of Brandon.

Flood in MOODY, SOUTH DAKOTA
From 08-MAR-20 03:30:00 to 20-MAR-20 03:30:00 (CST-6)
Location: FLANDREAU
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Big Sioux River near Brookings (gage site BRKS2) rose above flood stage on March 8, and crested 2.03 feet above flood stage in moderate flood on March 12.  Agricultural lands and several county roads near the gage site were inundated by flood waters.

Flood in BROOKINGS, SOUTH DAKOTA
From 08-MAR-20 20:00:00 to 10-MAR-20 03:00:00 (CST-6)
Location: STORLA
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Sixmile Creek above Brookings (gage site SMCS2) crested 0.64 feet above flood stage on March 9.  Impacts were limited to flooding of agricultural land north of Brookings.

Flood in MINNEHAHA, SOUTH DAKOTA
From 08-MAR-20 23:00:00 to 20-MAR-20 07:00:00 (CST-6)
Location: BRANDON
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Big Sioux River at Brandon (gage site BBSS2) crested 1.23 feet above flood stage on March 15.  Significant flooding of agricultural lands occurred upstream and downstream of Brandon.

Flood in MOODY, SOUTH DAKOTA
From 09-MAR-20 15:00:00 to 16-MAR-20 06:00:00 (CST-6)
Location: LONE TREE
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Big Sioux River at Trent (gage site TRES2) rose above flood stage on March 9, and crested 0.79 feet above flood stage on March 14.  The main impact was flooding of agricultural lands west of Trent.

Flood in UNION, SOUTH DAKOTA
From 10-MAR-20 07:00:00 to 12-MAR-20 11:30:00 (CST-6)
Location: BIG SPGS
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Big Sioux River at Akron (gage site AKRI4) crested 0.33 feet above flood stage on March 11.  Some rural roads and agricultural lands near the river were flooded.

Flood in MINNEHAHA, SOUTH DAKOTA
From 09-MAR-20 09:00:00 to 18-MAR-20 20:30:00 (CST-6)
Location: DELL RAPIDS
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Big Sioux River below Dell Rapids (gage site DERS2) rose above flood stage on March 9 and crested 1.33 feet above flood stage on March 14.  Impacts were limited to flooding of agricultural lands between Renner and Dell Rapids.

Flood in UNION, SOUTH DAKOTA
From 10-MAR-20 00:30:00 to 11-MAR-20 13:00:00 (CST-6)
Location: ALCESTER
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Big Sioux River above Hawarden (gage site HWDI4) crested 0.35 feet above flood stage on March 10.  Minor flooding of agricultural land occurred near the river.

Flood in MOODY, SOUTH DAKOTA
From 09-MAR-20 06:00:00 to 16-MAR-20 05:00:00 (CST-6)
Location: STORLA
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Big Sioux River at Egan (gage site EGAS2) rose above flood stage on March 9 and crested 1.14 feet above flood stage on March 13. Main impact was to agricultural land near Egan.

Flood in MINNEHAHA, SOUTH DAKOTA
From 05-MAR-20 07:00:00 to 21-MAR-20 17:00:00 (CST-6)
Location: RENNER
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Big Sioux River at Sioux Falls I-90 (gage site SFLS2) rose above flood stage on March 5, and crested 1.8 feet above flood stage on March 15. Impacts were primarily inundation of lower-lying agricultural lands north of Sioux Falls.