CODE OF VIRGINIA ACT OF GENERAL ASSEMBLY REQUIRED TO CONSTRUCT, ETC., DAM OR OTHER STRUCTURE (§ 10.1-407) After designation of any river or section of river as a scenic river by the General Assembly, no dam or other structure impeding the natural flow thereof shall be constructed, operated, or maintained in such river or section of river unless specifically authorized by an act of the General Assembly. HISTORY: 1970, c. 468, § 10-174; 1988, c. 891.