Work begins on repairing the stormwater pipes in Bealey Avenue between Colombo and Madras Streets from Monday,January 21.
Disruption should be limited to restrictions on right hand turns at intersections, particularly at Manchester, as the pipes run down the middle of Bealey Avenue under the line of trees.
Parts of the stormwater network in Christchurch are made up of brick barrel pipes, constructed more than 100 years ago. These damaged pipes are now being relined. The work involves lining the pipes to seal and strengthen them. Because the pipes need to be as dry as possible prior to lining, over pumping pipes will be installed prior to lining work beginning.
Work during the day involves constructing manholes to lower machinery into the ground to line the inside of the pipe. Nightworkers will then line the pipe using a technique called Cured in Place Pipe (CIPP). During this procedure a pipe liner is inserted into the existing pipe then treated with hot water to make the liner hardens and adheres to the existing pipe surface. This process restores structural integrity to cracked underground pipes.
The good news is that, despite this being quite a long stretch of road, it will all be finished in late March. But it will require work seven days a week, day and night.
Source: based on a release from SCIRT

