March 2000
Home ] Up ] Deutsch ] Contact Us ]

Water, Water, Water, Dam!

Please double click on images to enlarge

We plan in the end to have 30 hectares of grapes.  Each hectare needs a certain amount of water during the year.  At least half of this is required by the vines after all rainfall has finished for the year, so it must be stored in dams.  One Dams1.JPG (114778 bytes) third of the water in the dams will evaporate into the atmosphere so you need big dams.  We reckon we need to store over 100,000 cubic metres of water to irrigate the vines.  The two small dams on the farm contain only a small amount between them so we had decided to build two new dams.

The dam surveyor came up against major problems almost straight away. 

Our initial calculations of  the amount of earth required for the first dam were way short - and the way you pay for a dam is by the cubic metre of earth moved.  Instead of a wall a couple of metres high we were looking at something designed to defend the Roman Empire.  A wall the same in cross section as a two storey house!

To make matters worse the second dam just couldn't be built where we wanted it.  The wall of a Overview.JPG (70556 bytes) dam must be built on rock or something pretty impermeable to water so you have to dig down to find that before you start building upwards.  The test holes we were digging were now so deep you could have hidden a giraffe standing up and we still hadn't hit solid matter - just boulders and sand. 

As a result we decided not to build the second dam at all, but just increase the capacity of one of the existing dams.

All these problems had expensive solutions requiring some impressive civil engineering.  Our budget was to pay around 2 Rand per cubic metre of water stored, over and above what we already had, in the end it was looking like a multiple of that.  

The farm was beginning to look like one of those opal mining areas in outback Australia with spoil heaps from all the test holes scattered all over the place.  

"Big moles you have here" one visitor remarked.

One consequence of all these holes everywhere was the demise of Clive the female ostrich.  The previous owner used to have a pair of ostriches which he tried to make money from by breeding baby ostriches.  They were kept in the paddock that he cropped for silage and the male, who was very territorial, one day decided to attack the silage mower.  The ostrich came off worse and had to be shot.  Quite how you shoot an angry ostrich is another question - through the head?  

That left the female who the owner tried to sell us.  We refused to pay for it as it was just a nuisance and we couldn't do anything with it anyway.  We couldn't even catch it!  We christened it Clive for no good reason and it carried on living in the paddock which was now being turned into a vineyard.  It was becoming a real pest - attacking the tractors and frightening the staff so we were glad when it fell down one of the test holes and got stuck.  It was finally trapped in one place long enough for Manie to dispatch it.  We don't know how he did it, he is built like a rugby forward but we doubt he wrung its neck.

Copyright © 2000 Tulbagh Solutions.  All rights reserved.

Back ] Next ]

Up ] TMV...the birth! ] January 2000 ] February 2000 ] [ March 2000 ] April 2000 ] May 2000 ] June 2000 ] July 2000 ] August 2000 ] September 2000 ] October 2000 ] November 2000 ] December 2000 ] January 2001 ] February 2001 ] March 2001 ] April 2001 ] May 2001 ] June 2001 ] July 2001 ] August 2001 ] September 2001 ] October 2001 ] November 2001 ] December 2001 ] January 2002 ] February 2002 ] March 2002 ] April 2002 ] May 2002 ] June 2002 ] July 2002 ] August 2002 ] September 2002 ] October 2002 ] November 2002 ] December 2002 ] January 2003 ] February 2003 ] March 2003 ] April 2003 ] May 2003 ] June 2003 ] July 2003 ] August 2003 ] September 2003 ] October 2003 ] November 2003 ] December 2003 ] January 2004 ] February 2004 ] March 2004 ] April 2004 ] May 2004 ] June 2004 ] July 2004 ] August 2004 ] September 2004 ] October 2004 ] November 2004 ] December 2004 ]

 

Home Page Tulbagh Wine  Tulbagh Visitor's Info   Where to Stay   Where to Eat  Tulbagh Real Estate    Event Planning  Activities  Tulbagh Trade  Tulbagh Mountain Vineyards

Tulbagh Information Tel: +27 (0) 23 230 1348/230 1375 email: tulbagh information