Releases from Gavins Point Dam on the Missouri River near Yankton jumped to one hundred thousand cubic feet per second for a time over night as Lewis & Clark Lake behind the dam rose to a record level.

Gavins Point Operations Manager Tom Curran says big inflows from the Niobrara River pushed the lake rapidly up…

Curran says the lake rose to a level of 1212.27 feet, above the old record of 1210.8 feet.

Curran says they hope to reduce flows fairly rapidly..

Spencer Dam on the Niobrara River failed yesterday sending a big surge of water into the lake.

Curran says they are anticipating more ice and debris flowing toward the dam….

The river level at the gauge in Yankton jumped over ten feet to near minor flood stage.