Construction of the cofferdam started on Monday 8th July. In consultation with the Environment Agency, our contractors have slightly modified the design of the cofferdam. As a result the contractor has implemented a special piling head which as enabled them to use a relatively quiet piling technique using a ‘silent hammer’ or vibro-hammer. We have completed the cofferdam using this technique, however for the rest of the piling we may still need to switch to impact piling depending on ground conditions encountered.
