a. Reasons for the increased cost to build the stone wall on the Robben Island are the following:
- The nature of the proposed design which was to replace the bridged dry-stone packed wall with a concrete seawater barrier that would then be clad with a layer of gabions and the dry-packed bluestone on the island side and a pebble ramp on the seaside.
- Environmental provisions that included having to build only over a 6 months’ period outside the bird and penguin breed seasons.
- Further bridging of the wall as the project preparations including the sourcing of further funds, this was more severe during the June 2017 storm when the bridged opening increased by a further 20 meters.
- What Coega Development Corporation refers to as the ‘Island Factor is a logistics cost that had been underestimated by the consultants early in the development of the project that became an issue at procurement.
b. R10, 3 Million in 2015 was estimated at Preliminary design stage.
c. R28, 6 Million based on the lowest tender price.