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28.08.2019 14:00

Posiva and YIT agree on second phase of excavation works for final disposal facility

The contract agreement covers the second phase of excavation works in Olkiluoto for two central tunnels and five deposition tunnels connected to them. The total value of the contract is ca. 17 million EUR.

The deposition tunnels to be excavated are unique on a global scale and subject to exceptionally strict quality requirements. The demanding tunnel structures require special professional expertise. Contract works start towards the end of 2019 and are expected to take about two and a half years.

- This one-of-a-kind EKA project we have launched covers not only excavations for the final disaposal facility, but also the encapsulation plant as a whole and the systems which are needed to begin final disposal in the rooms that have already been excavated. Upon the completion of this contract, we will have excavated in ONKALO® the first deposition tunnels approved by the Finnish Radiation and Nuclear Safety Authority STUK for the execution of final disposal, says Posiva’s President Janne Mokka.

- Our cooperation with Posiva has been extremely smooth in previous projects and we are happy to continue our joint efforts in this demanding project. YIT is an experienced executor of complex tunnel projects and this interesting venture gives us the opportunity to utilise our strong expertise, says YIT’s Head of Mining and Special Construction Division, Aleksi Laine.

For more information, please contact:

Posiva Oy, Construction Manager, Juha Riihimäki, tel. +358 2 8381 5300

YIT Oyj, Head of Division, Mining and Special Construction, Aleksi Laine,
tel. +358 40 745 6536


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