§ 105.96. Outlet works.

 (a)  Dams shall include a device to permit the draining of the reservoir within a reasonable period of time as determined by the Department unless the Department determines that an outlet works is not feasible for a specific dam.

 (b)  In determining the reasonable time period for drainage of the reservoir, the Department may consider, without limitation, the following factors:

   (1)  The damage potential posed by possible failure of the dam.

   (2)  The risk and nature of potential failure and the time likely to be available to avert the failure after notice of conditions threatening the safety or stability of the dam.

   (3)  The purpose of the dam and reservoir.

   (4)  The capacity and stability of available drainage courses to convey the waters released from the reservoir in the event of emergency drainage.

   (5)  The influence of rapid drawdown on the stability of the dam, its appurtenant works and the upstream natural slopes of the reservoir.

 (c)  Each outlet works shall include a means of dissipating the energy of flow at its outlet to assure conveyance of flow without endangering the safety and integrity of the dam or the natural environment of the stream.

   The provisions of this §  105.96 adopted September 26, 1980, effective September 27, 1980, 10 Pa.B. 3843.