"Home from home" hospitality awaits you where you can come and enjoy great walks, bird watching, hiking trails, fishing, boating, sailing, water skiing, nature reserve and much, much more!
The giant Gariep Dam, completed in 1971, is the central structure of the Orange River Project. The functioning of the project is made possible by the water stored in this dam. From this dam the scheme divides in two directions, the water flowing either westwards along the Orange River, via hydro-electric power generators to the Vanderkloof Dam, or through the Orange-Fish Tunnel to the Great Fish and Sundays River Valleys.
The Gariep Dam is situated 5 km east of Norvalspont in a gorge at the entrance to the Ruigtevallei and is a composite concrete gravity arch dam. Because the dam gorge at the site where the dam was built was too wide to allow a complete arch, only the central section of the dam is arched. Two concrete gravity section flanked walls from artificial abutments for the arch. The curvature structure of the wall is a very effective design for resisting the water pressure, as it deflects the thrust of the water towards the solid rock foundations of the wall, the water thrust is so tremendous against the convex side of the wall which faces upstream that the wall actually gives or bends under it. This factor was taken into account in the design of the dam. Under maximum flood conditions, 7 900m3/s (cubic meters per second) water will flow 6,1 m deep over the crest spillway. This is additional to the 8 300m3/s which can be discharged through the six flood chutes situated in either side of the wall.
The main features of the Gariep Dam are the following:
There is also the annual Million-Dollar Pigeon Race in January and the International Gliding Championships in December. ……or just relax with a book from the Library. Contact Sandra Visser at 051-754 0071 for assistance.