Bridge strengthening to cause delays
Work may take three weeks
Central Otago motorists can expect delays as more work on the $770,000 strengthening project gets under way on the Alexandra bridge.
New Zealand Transport Agency senior communications adviser Bob Nettleton short delays will be in place for up to three weeks so critical welding of new steel strengthening beams below the bridge can be finished.
Work would start on Wednesday,between 9am to midday, then again from 1pm to 4pm, from Monday to Friday.
Steam cleaning would also be carried out at night to clean some of the worst areas under the Alexandra bridge affected by pigeon excrement.
Strengthening work started in March and involves fixing additional steel plates to increase the depth and thickness of 21 beams that take the load from the lighter bridge deck members.
The job was part of a $1.6m worth of bridge strengthening programme being carried on the highway between Alexandra and Queenstown.
Other bridges involved were the Roaring Meg bridge, Gentle Annie bridge and Kawarau River, on SH6 between Cromwell and Queenstown.
The total cost of the work on those three bridges was $840,000.
Once the work was completed, the highway between Alexandra and Queenstown would be capable of handling High Productivity Motor Vehicles.