Decommissioning Thames sewerage works

Work is under way to decommission and remove a cofferdam at Chambers Wharf in Bermondsey, London.

The cofferdam built as part of improvements to the Thames sewerage system is being decommissioned

Constructed from 2016 onwards, the Chambers Wharf site was a main drive site for Thames Super Sewer tunnelling works and one of the busiest locations on the Thames Tideway project for the import and export of materials by water.

The infilled cofferdam used 744 piles to create nearly 1 ha of new foreshore. It formed the temporary construction platform for a 25 metre diameter, 57 metre deep launch shaft for the tunnelling equipment.

During works to build the cofferdam, archaeologists made a grisly discovery when they unearthed a 15th century human skeleton. Who he was or how he came to be buried in the mud will remain a mystery but he now resides at the Museum of London along with other discoveries from the dig.

Now that tunnelling works have completed, works are being undertaken to reinstate the site to the city and its people.

These works require a navigation risk assessment and engineering contractor, Land & Water Services, has appointed NASH Maritime to undertake this.

Aaron Harpur, Land & Water commercial manager, said: “Nash Maritime have provided Land & Water with expert professional advice and assistance with our navigational risk assessments in preparation for our decommissioning works of both cofferdam structures at King Edwards Memorial Park and at Chambers Wharf on the River Thames, as part of the ongoing Thames Tideway project.”