Emmett Construction has provided six 6-tonne concrete slabs and they arrived on site on Wednesday and lowered into position. Sections of rail line to move the cradle for the Waimarie were expected on site yesterday.
"Once these are in place the cradle will be lifted into position, and a practice run will be performed to make sure it all works according to plan," Mr Sheppard said.
"We expect the slip will be completed soon after this weekend. Then we have to work out the next suitable tide sequence, and weather permitting, this may be the first or second week in September," he said.
Once on the slipway the Waimarie will undergo its five-yearly maritime survey and the hull will be repainted.