Pre-emptive Discharge of Dam Water – A must even in TVA

December 10th, 2011 No Comments   Posted in Dam water release

TVA opens spill gates of all nine dams in Tennessee River system

(from Dec 8 – McClatchy-Tribune Regional News – Suzanna McCloskey The Knoxville News-Sentinel, Tenn.)

 

 The author of this blog is gratified to know that even the renowed US TVA practices pre-emptive discharge of excess dam water in order to provide sufficent ulage to contain an incoming storm or exceptional rainfall or run-off arising from non-absorptive capability of vegetation during certain periods of the year, thus avoiding the need for catastrophic releases of excess dam water during peak rainfall and run-off. More »

Need to lower the Dam Rule Curve to allow for at least ullage for 1-2 storms

September 29th, 2011 1 Comment   Posted in Dam water release
 
With the series of storms battering the Philippines, it is now necessary to do pre-emptive discharge of excess dam water in order to avoid catastrophic release from dams equipped with spillways, as against the over-flow dams which have no control. More »