Balfour keeps Jersey quiet

Balfour Beatty Civil Engineering has built an acoustic canopy over one of its sites in Jersey to minimise dust and noise for the people of St Helier while it builds a new sewer.

The massive canopy completely encloses a 35m deep access shaft and a second access tunnel. The two allow construction of 1000m-long tunnel using drill and blast and a tunnel boring machine. The tunnel is part of a flood relief project for St Helier which will separate storm and foul water to prevent the existing system surcharging in wet weather.

The œ8.8 million project is expected to be completed in November 1995.