The U.S. Army Corps of Engineers says this spring's drier than normal weather has helped keep space free for floodwaters in the reservoirs along the Missouri River.
The corps said Friday nearly all of the 16.3 million acre-feet of the planned storage space for floodwater remains free because March was so dry.
The corps now says runoff into the Missouri River should be about 94 percent of normal this year, but that could change because it is still early.
Last year, late spring rains combined with heavy snowpack to force the release of massive amounts of water from the dams and record flooding along the 2,300-mile-long river.
Corps officials say there appears to be enough water this year to provide for full navigation from Sioux City, Iowa, to St. Louis.