Geotechnical survey Grünstraße

Summary

The tender concerns the geotechnical survey and ground investigations for Grünstraße road and canal planning in Herzogenrath. The work includes field investigations (9 ram core borings to 2.00 m depth in the sidewalk area and 9 ram core borings to 3.50 m depth in the roadway and canal zone; 50 m ram core drilling per started metre; 4 infiltration tests) and laboratory/environmental investigations (grain-size distribution by sieve and sediment analysis; soil assessment under BBodSchG and EBV; evaluation of reuse of bearing layers). The final report must describe soil and groundwater conditions, borehole profiles, groundwater level, bearing capacity, kf-values of the main soil layers, evaluation of infiltration possibilities, and recommendations for soil improvement or disposal. The cost calculation shall be completed using the provided Excel sheet. Planned timeline: award by 31.10.2026; bids due 13.10.2026 at 10:00; electronic submission via the NRW procurement portal; the contract will be awarded to the economically most advantageous bid (honorarium).