Will wild and scenic river designation lead to restrictions on recreational use of rivers?

No, not unless necessary to protect public safety, the river’s water quality, or other resource values. Recreational use of our nation’s rivers is increasing in both magnitude and extent, i.e., the types of recreational activities pursued and the technologies being used. Whether and how to restrict recreational use is a key issue in the planning process, which includes extensive local, regional, and national public involvement.

Source
Interagency Wild & Scenic Rivers Council