Snowmelt flooding in March continued across much of central and northeast South Dakota as the rest of the snowpack melted into early April. Many roads along with countless acres of crop and pastureland remained flooded. Roads, culverts, and bridges were damaged across the region. Several roads were washed out with many closed. Many homes were threatened with some surrounded by water. Rising lake levels in northeast South Dakota also threatened and flooded many homes. Many people had to use four-wheelers to get to their homes. A Presidential Disaster was declared for all of the counties do to the flooding damage.  The total damage estimates, including March, were from 4.5 to 5 million dollars for the area.  The flooding diminished across much of the area into May.

Flood in HUGHES, SOUTH DAKOTA
From 01-APR-11 00:00:00 to 30-APR-11 23:59:00 (CST-6)
Location: PIERRE
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Flood in POTTER, SOUTH DAKOTA
From 01-APR-11 00:00:00 to 30-APR-11 23:59:00 (CST-6)
Location: GETTYSBURG
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Flood in SULLY, SOUTH DAKOTA
From 01-APR-11 00:00:00 to 30-APR-11 23:59:00 (CST-6)
Location: LAUREL
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Flood in HYDE, SOUTH DAKOTA
From 01-APR-11 00:00:00 to 30-APR-11 23:59:00 (CST-6)
Location: HOLABIRD
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Flood in CLARK, SOUTH DAKOTA
From 01-APR-11 00:00:00 to 30-APR-11 23:59:00 (CST-6)
Location: CROCKER
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Flood in ROBERTS, SOUTH DAKOTA
From 01-APR-11 00:00:00 to 30-APR-11 23:59:00 (CST-6)
Location: DAHLBERG
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Flood in GRANT, SOUTH DAKOTA
From 01-APR-11 00:00:00 to 30-APR-11 23:59:00 (CST-6)
Location: HILAND
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Flood in HAND, SOUTH DAKOTA
From 01-APR-11 00:00:00 to 30-APR-11 23:59:00 (CST-6)
Location: POLO
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Flood in EDMUNDS, SOUTH DAKOTA
From 01-APR-11 00:00:00 to 30-APR-11 23:59:00 (CST-6)
Location: BOWDLE
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Snowmelt runoff flooded and damaged many roads throughout Edmunds county. The flooding of U.S. Highway 12 caused the most impact to travel. The frequently traveled east/west highway was eventually closed with traffic being detoured.

Flood in FAULK, SOUTH DAKOTA
From 01-APR-11 00:00:00 to 30-APR-11 23:59:00 (CST-6)
Location: ONAKA
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Flood in MARSHALL, SOUTH DAKOTA
From 01-APR-11 00:00:00 to 30-APR-11 23:59:00 (CST-6)
Location: NEWARK
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Flood in DAY, SOUTH DAKOTA
From 01-APR-11 00:00:00 to 30-APR-11 23:59:00 (CST-6)
Location: PIERPONT
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Flood in HAMLIN, SOUTH DAKOTA
From 01-APR-11 00:00:00 to 30-APR-11 23:59:00 (CST-6)
Location: HAZEL
Flood cause: Heavy Rain / Snow Melt
Property damage: 800.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Snowmelt flooding damaged many roads and highways, including U.S. Highway 81, throughout Hamlin County.  Many roads were closed throughout the county. In the late evening of April 13th on U.S Highway 81, a car with four people inside went through a flooded area at a high rate of speed and ended up in the flooded ditch. They all got out with no injuries.

Flood in CODINGTON, SOUTH DAKOTA
From 01-APR-11 00:00:00 to 30-APR-11 23:59:00 (CST-6)
Location: WALLACE
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

The snowmelt runoff caused Lake Kampeska to rise to nearly 44 inches overfull.  The lake flooded several roads and also threatened many homes.  Sandbagging was done to hold off the rising lake. Although, waves and ice chunks did eventually do some damage to homes. Also, many boat lifts were damaged. Mud creek near Rauville also went slightly above the flood stage of 9 feet to 9.64 feet for a couple days in early April.

Flood in BUFFALO, SOUTH DAKOTA
From 01-APR-11 00:00:00 to 30-APR-11 23:59:00 (CST-6)
Location: FT THOMPSON
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Flood in SPINK, SOUTH DAKOTA
From 01-APR-11 00:00:00 to 30-APR-11 23:59:00 (CST-6)
Location: MANSFIELD
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Snake Creek near Redfield continued above flood stage throughout April and into May. The creek rose above the flood stage of 11.5 feet to 17.54 feet in late March.

Flood in BROWN, SOUTH DAKOTA
From 01-APR-11 00:00:00 to 30-APR-11 23:59:00 (CST-6)
Location: WINSHIP
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Snowmelt flooding resulted in the closure and damage to many roads in Brown county. The area most affected by the flooding was in the Claremont and Hecla areas in northeast Brown county.  Claremont had become nearly an island with only one way in and out of town. This had been the worst flooding in their history.  Hecla was also bad with many roads closed.  Many homes were also threatened by flooding in the Hecla and Claremont areas.  The Maple River in northwest Brown county also flooded for a few days in early April. The river went about 2.4 feet above the flood stage of 10 feet.