Table 1: Schedule of work
Empty the upper basin, pressure shaft and upper water distribution pipeline |
2 April 2008 – 10 April 2008 |
Empty the lower water tunnel and lower water distribution pipeline |
14 April 2008 to 18 April 2008 |
Anti-corrosion works in the pressure shaft |
Mid July 2008 – 3 March 2009 |
Anti-corrosion works in the upper water distribution pipeline |
May 2008 to July 2008 |
Anti-corrosion works in the lower water distribution pipeline |
May 2008 to January 2009 |
Anti-corrosion works on the cylindrical sluice-gate including constructional mechanical repairs |
September 2008 to November 2008 |
Anti-corrosion works Lindau – bypassing |
October 2008 to December 2008 |
Filling the lower water tunnel and distribution pipeline |
January 2009 |
Filling the pressure shaft |
17 March 2009 to 26 March 2009 |
Back into operation |
16 March 2009 to 6 April 2009 |