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| JANUARY 2023 | UTILITY WEEK
Water
High Viz
Groundbreaking progress
More milestones were reached on London's "super sewer" project over
the back end of last year as it heads towards completion in 2027. The
Thames Tideway project was granted an extension of six months by
Ofwat because of Covid-19 and lockdowns delaying work on the pro-
ject. It is now due to be handed over to Thames Water to operate by
the end of August 2027.
In November, Tideway's Blackfriars team completed the pour of the
shaˆ roof – the second largest on the project.
The 200 cubic-metre-pour took 10 hours to complete and was the
culmination of an extensive programme of works in the shaˆ . The
base slab, 58 metres below, was poured at the end of March last year.
In the ensuing 20 months, the team has completed the shaˆ second-
ary lining and baΠe walls, installed two vortex tubes and the heading
beam.
The team has now moved on to the roof upstands, which will
accommodate the access covers. They will also complete phase two
of the air treatment chamber, which sits on the shaˆ roof slab. Once
complete, the team can pour the slab ready for paving.
Elsewhere, the team at Victoria Embankment Foreshore has started
works to remove its co" erdam – the third site on the Central section to
do so. The co" erdam contains 284 piles, which were driven between
10 and 12 metres into the clay under the river. As this job progresses,
the new granite-clad river wall will meet the river for the • rst time as
the vacated lower work area inside the co" erdam – oods.
The • rst 10 of nearly 100 precast concrete river wall panels have
also been installed at King Edward Memorial Park in Wapping. These
panels will form the permanent riverside cladding for the site, which
will extend the park out into the Thames.
