Scottish Water has announced that the tunnel boring machine (TBM) for a flood alleviation tunnel in the Yokers area of Glasgow has started to bore the tunnel on its £7M scheme.
The 17t TBM, built by Active Tunnelling, will be used to drive an 800m long tunnel for a new sewer from the grounds of the former Blawarthill Hospital to the north bank of the Clyde.
Scottish Water has said that the route of the sewer tunnel has been chosen to minimise disruption to local residents and road users.
Main Contractor George Leslie is expected to achieve tunnelling rates of 2.5m per hour with the 1.8m diameter TBM. The tunnel will be driven at depths of up to 9m below ground level.
Tunnelling work is scheduled to take 46 weeks to complete.