Owing to difficult soil conditions, extensive piling work had to be carried out, including 1,150,000 m3 of landfill which was moved by hand.
På grund af vanskelige jordbundsforhold forestod først et omfattende piloteringsarbejde, som bl.a. indbefattede, at 1.150.000 m3 jord blev fyldt ud i engen ved håndkraft.