Execution of Subsoil Investigation Work Tender in Germany - 138942700

Procurement Summary

Country: Germany

Summary: Execution of Subsoil Investigation Work, Hydrogeological and Soil Mechanical Borehole Tests for the Replacement of the Herbrum Lock

Deadline: 28 Apr 2026

Posting Date: 03 Apr 2026

Other Information

Notice Type: Tender

TOT Ref.No.: 138942700

Document Ref. No.: 2026/801/000009

Competition: ICB

Financier: Self Financed

Purchaser Ownership: Public

Tender Value: Refer Document

Purchaser's Detail

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Tender Details

CONSTRUCTION PROJECTS The Ems-Nordsee Waterways and Shipping Authority (WSA) as the AG and project sponsor is planning to replace the Herbrum lock. The Herbrum lock is located in the northwest of Lower Saxony in the Emsland district and is the entrance lock to the Dortmund-Ems Canal (DEK) coming from the North Sea is part of the DEK. The lock consists of two chambers, with the newer western chamber in operation and the old eastern chamber disused. The closed eastern lock chamber is included neither dismantled nor filled. The replacement of the Herbrum lock is to be built in this area. Appropriate subsoil investigations are required for the dismantling of the old lock chamber and the replacement construction. These are the subject of the present Tender. GEOLOGY, GROUNDWATER AND SOIL TYPES For the tendering of drilling work in accordance with DIN 18301:2023-09, the following homogeneous areas are specified in accordance with Section 2.2: Homogeneous area A: Backfills / overlay soils / loose rock, non-cohesive, partly cohesive, partly organic According to HK 50, groundwater can be expected to be 0.0 to 2.5 m below the ground surface. It can be assumed that the groundwater level is linked to the water level of the Ems. It is the aquifer according to HÜK 500 around a porous aquifer. The project area is located in a documented area with saline lower groundwater. SERVICES OF THE CONTRACTOR Exploration procedures and field tests: - shore-side core drilling (D = 100 mm) as Vertical drilling, partly with groundwater measuring point expansion (BK/GWM) - Water-side core drillings (D = 100 mm) as vertical drillings (BK_w), in the lower outer harbor with tidal influence - landside and waterside pressure soundings (CPT & CPT_w), in the lower Outer harbor with tidal influence - Borehole tests (pump tests, SPT tests) - Small ram drillings (BS) - Heavy Ram Soundings (DPH)...
Type of procedure: 26871 Papenburg

Documents

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