‘Where the water of a river recedes slowly and imperceptibly, changing the channel of the stream, and leaving the land dry theretofore covered by water, such land belongs to the riparian proprietor. In case the alteration takes place suddenly, the ownership remains according to former bounds.’ State v. Eckland, 147 Neb. 508, 23 N.W.2d 782 (1946) (quoting, Gill v. Lydick, 40 Neb. 508, 59 N.W. 104 (1894)).
‘Where, at the time of a grant from the United States, the bank of a river formed a part of the boundary of the grant, subsequent accretions, formed by the gradual recession of such bank, attached to and became a part of the grant.’ State v. Eckland, 147 Neb. 508, 23 N.W.2d 782 (1946) (quoting Topping v. Cohn, 71 Neb. 559, 99 N.W. 372 (1904)).