Morgan Est has won a £21M contract to build two new Advanced Digestion Plants for Welsh Water.
All civils work for both plants will be covered in the contract - one to be built at Cardiff Waste Water Treatment Works and the other at Afan Waste Water Treatment Works.
The Cardiff scheme will involve building two 22m diameter, 22m high reinforced concrete digester tanks which will sit on 2,900m3 raft foundations.
The Afan job will be to construct two 18m diameter, 18m high post-tensioned structures on a piled base. Both schemes will include all bases and building structures associated with the mechanical and electrical process.
Welsh Water aims to reduce its carbon footprint by producing a green form of energy from the advanced digestion process.
Morgan Est Project Manager Sean Murray said: “All the enabling works, which included numerous service diversions, demolition and modifications to an existing structure have been completed.
“The team is very excited by the challenge of getting everything ready for the power-on date of 31st March 2011.”