What are the primary effects of wild and scenic river designation?

WSR designation seeks to protect and enhance a river’s current natural condition and provide for public use consistent with retaining those values. Designation affords certain legal protection from adverse development, e.g., no new dams may be constructed, nor federally assisted water resource development projects allowed that are judged to have an adverse effect on designated river values. Where private lands are involved, the federal managing agency will work with local governments and owners to develop voluntary protective measures.