Development of the Sietas site – geotechnical investigations

Summary

The tender covers geotechnical investigations for the development of the Sietas site in Hamburg. The work includes 13 small-diameter boreholes to approximately 15 m, 13 CPT soundings to approximately 25 m, two dry boreholes for groundwater monitoring wells, construction of two monitoring wells, sampling, documentation, groundwater monitoring with data loggers for one year, and handling or disposal of drill spoil. The work is expected to start in calendar week 38 of 2026 and be completed within four weeks of the award. The tender is evaluated on price only, and the lowest evaluated total is awarded the contract. Offers must be submitted electronically in German by 14 September 2028 at 12:00 according to the tender document.