PHCA Dam/Lake

Virginia State Regulations and the PHCA Dam

Recent changes to the Virginia state laws which govern the maintenance and operation of the PHCA dam have resulted in changes to the state-mandated maintenance tasks associated with our dam. In particular, the state now requires that an “inundation study” be made in 2011 before PHCA can obtain state certification for operation of our dam. The documents that follow provide further details on these state dam regulation changes and what laws in general govern the maintenance of our dam.

  • Virginia dam safety regulations summary [Adobe Acrobat PDF – 41.57 KB]: A two-page summary of the Virginia dam safety regulations which apply to the PHCA dam and the recent changes that have been made to those regulations.
  • Virginia Soil and Water Conservation Board Guidance Documents:
    • Regulatory description of dam regulation changes [Adobe Acrobat PDF – 179.11 KB]: Description of the amendments made to the state regulations governing “impounding structures (i.e. dams).
    • Dam inundation study guidelines [Adobe Acrobat PDF – 47.32 KB]: This guidance document specifies the procedures to be utilized by the Virginia Soil and Water Conservation Board in determining the adequacy of a dam break inundation zone analysis and map prepared in accordance with 4VAC50-20-54 and the adequacy of an incremental damage analysis conducted in accordance with 4VAC50-20-52.
    • Hazard potential determination process [Adobe Acrobat PDF – 57.34 KB]: This guidance document outlines the decision process to be utilized by the Virginia Soil and Water Conservation Board and an owner and his engineer in determining hazard potential classification of an impounding structure in accordance with the Virginia Impounding Structure Regulations.
    • Hazard potential determination involving roadways [Adobe Acrobat PDF – 32.58 KB]: This guidance document specifies the decision process to be utilized by the Virginia Soil and Water Conservation Board in determining the hazard classification of a dam based on the ownership, use, and location of a roadway on or below an impounding structure.
    • Special low-hazard impounding structure requirements [Adobe Acrobat PDF – 29.77 KB]: This guidance document specifies the decision process to be utilized by the Virginia Soil and Water Conservation Board in determining whether the owner of a an impounding structure needs to perform a dam break analysis in order to certify the dam as a special low hazard classification pursuant to Section 4VAC50-20-51 of the Virginia Impounding Structure Regulations.
  • Virginia Soil and Water Conservation Districts [Adobe Acrobat PDF – 235.76 KB]: Description of the Virginia state soil and water conservation districts.
  • Virginia state impounding structure regulations [Adobe Acrobat PDF – 257.94 KB]
  • Virginia Soil and Water Conservation Board directory [Adobe Acrobat PDF – 15.56 KB]

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Upcoming Board Meetings

Time: 7:00 p.m. – 8:30 p.m.

Location: 660 Big Oak Road (Dowell home)

Contact: 434-282-2466

Dates:

  • May 30th (Wednesday)
  • June 21 (Thursday)
  • August 23 (Thursday)
  • September 20 (Thursday)
  • NOTE: There is ┬áno meeting scheduled for the month of July

Each meeting agenda will be posted prior to the meeting date. If you have additional agenda items, contact a board member at least 1 week prior to the scheduled meeting so that items can be included.

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