Specifications and invitations. 3997. Earth lining, station 287+00 to station 315+00, station 346+00 to station 396+00, station 413+00 to station 507+75, station 635+58 to station 645 +33, and relocation and earth lining, station 617+81.3 to station 632+46.9 BK., Courtland Canal, Superior-Courtland unit, Bostwick division, Nebraska-Kansas, Missouri River Basin project.