Sizewell C launches £250m bulk dig bid race

Sizewell C has kicked off procurement for a £100m-£250m bulk earthworks package to carve out the main construction arena for the twin-reactor nuclear power plant.
The two-year enabling works contract covers excavation of around 3.3m cu m of made ground, crag sand and peat from the Suffolk site to prepare foundations for Units 1 and 2.

The winning contractor will start in January 2027, managing fleets of 45-tonne all-terrain dump trucks to haul material along a segregated heavy-haul road between the Main Construction Area and the Temporary Construction Area.

Scope includes testing, segregation and stockpiling of suitable material, shaping and compaction of disposal areas, and coordination with the site’s civil works alliance.

Backfilling works will run in tandem with excavation to accelerate nuclear build schedules.

The work forms part of the Main Works Earthworks programme – one of several major packages being let ahead of full construction mobilisation.

Blackwell Earthmoving has been carrying out the initial earthworks, which involved creating compounds for the site. Jackson Civil Engineering delivered key road schemes.

Tenders close at 5pm on 31 October 2025, with Sizewell C’s procurement lead Bryan Jenkinson handling enquiries. Click to email.

Source:Sizewell C launches £250m bulk dig bid race | Construction Enquirer News