Chapter 20. Impounding Structure Regulations  


Section 10. Authority
Section 20. General provisions
Section 30. Definitions
Section 40. Hazard potential classifications of impounding structures
Section 45. Hazard potential classifications based on low volume roadways.
Section 50. Performance standards required for impounding structures
Section 51. Special criteria for certain low hazard impounding structures
Section 52. Incremental damage analysis
Section 53. Special criteria for reduced SDF requirement for certain high hazard dams
Section 54. Dam break inundation zone mapping
Section 58. Local government notifications
Section 59. Reporting
Section 60. Required permits
Section 70. Construction permits
Section 80. Alterations permits
Section 90. Transfer of permits
Section 100. [Repealed]
Section 101. General permit requirements for low hazard potential impounding structures
Section 102. Registering for coverage under the general permit for low hazard potential impounding structures
Section 103. Transitioning from regular or conditional certificates to general permit coverage for low hazard potential impounding structures
Section 104. Maintaining general permit coverage for low hazard potential impounding structures
Section 105. Regular Operation and Maintenance Certificates
Section 110. [Repealed]
Section 120. [Repealed]
Section 125. Delayed effective date for Spillway Design Flood requirements for impounding structures
Section 130. [Repealed]
Section 140. [Repealed]
Section 150. Conditional operation and maintenance certificate
Section 155. Extension of Operation and Maintenance Certificates
Section 160. Additional operation and maintenance requirements
Section 165. Agricultural exemption
Section 170. Transfer of certificates
Section 175. Emergency Action Plan (EAP) for High and Significant Hazard Potential impounding structures
Section 177. Emergency Preparedness Plan for Low Hazard impounding structures
Section 180. Inspections
Section 190. Right to informal fact-finding proceeding or hearing
Section 195. Judicial review
Section 200. Enforcement
Section 210. Consulting committee
Section 220. Unsafe conditions
Section 230. Complaints
Section 240. Design of structures
Section 250. [Repealed]
Section 260. Spillway design
Section 270. Principal spillways and outlet works
Section 280. Drain requirements
Section 290. Life of the impounding structure
Section 300. Additional design requirements
Section 310. Plans and specifications
Section 320. Acceptable design procedures and references
Section 330. Other applicable dam safety references
Section 340. Authority to establish fees
Section 350. Fee submittal procedures
Section 360. Fee exemptions
Section 370. Construction Permit application fees
Section 375. Fee for coverage under the general permit for low hazard impounding structures
Section 380. Regular Operation and Maintenance Certificate application fees
Section 390. Conditional Operation and Maintenance Certificate application fees
Section 395. Simplified dam break inundation zone analysis fee
Section 400. Incremental Damage Analysis review fees
Appendix 9999. DOCUMENTS INCORPORATED BY REFERENCE (4VAC50-20)