For purposes of the Scenic Rivers Act, the Grand River Dam Authority shall have additional powers and duties to:
1. Prepare, adopt and publish management plans and other documents to guide public and private activities and programs;
2. Consider and comment on public and private practices and proposed actions that may affect a scenic river;
3. Recommend standards for local government agencies whose political boundaries include all or part of a scenic river;
4. Own and control public access points for scenic rivers, and purchase easements and fee title to land along the scenic rivers for public purposes which are to be held by the Authority as an agency of the State of Oklahoma; and 5. Identify public and private nuisances that adversely affect a scenic river and take lawful action to abate nuisances.