Definitions. (Retroactive application - See note) For purposes of this chapter, unless the context otherwise requires:
1. "Corps survey" means the last known survey conducted by the army corps of engineers in connection with the corps' determination of the amount of land acquired by the corps for the impoundment of Lake Sakakawea and Lake Oahe, as supplemented by the supplemental plats created by the branch of cadastral survey of the United States bureau of land management.
2. "Historical Missouri riverbed channel" means the Missouri riverbed channel as it existed upon the closure of the Pick-Sloan Missouri basin project dams, and extends from the Garrison Dam to the southern border of sections 33 and 34, township 153 north, range 102 west which is the approximate location of river mile marker 1,565, and from the South Dakota border to river mile marker 1,303.
3. "Segment" means the individual segment maps contained within the corps survey final project maps for the Pick-Sloan project dams.
4. "State phase two survey" means the "Ordinary High Water Mark Survey Task Order #2 Final Technical Report" commissioned by the board of university and school lands.