In-Flow Liner avoids 17m Oxford Street excavation

Maintaining hyrdaulic integrity

A 1.9m diameter sewer, 17m below Oxford Street required protection.  some of the challenges of the brief included the requirement to install in upto 750mm of live flows, installation in non-consecutive shifts and access through existing shafts only.

The In-Flow liner solution designed and detailed here subsequently won the UKSTT Large Renovation Project Award and Innovation Award.