What is the role of local government in managing wild and scenic rivers?

Local government entities are encouraged by federal wild and scenic river-administering agencies to provide for the protection of wild and scenic river values in their land use plans, including the use of zoning and other land use measures. Their participation in development of the comprehensive river management plan (CRMP) in areas of mixed ownership is essential to ensure an enduring planning strategy that protects river values and respects the rights of landowners. In some cases, local governments have chosen to strengthen land-use requirements during a wild and scenic river study, in order to demonstrate the adequacy of local river protection prior to requesting Congressional designation.

Source
Interagency Wild & Scenic Rivers Council