Lot 1:

Includes the northern canal construction from the outlet of the Harpener Teiche to the inlet of the first stream piping, as well as from the outlet of the first stream piping to the inlet of the second stream piping.

"Reorganization of the water system Harpener Teiche - Harpener Bach- Ümminger See" approx.

- 480 m reinforced concrete pipes DN 700,

- 1 hour crossing Harpener Bach,

- 8 prefabricated shafts,

- 3 St. in-situ concrete shafts,

- 4,500 m 3 Excavated soil to a depth of approx. 6.50 m,

- 5,000 m 2 Rail sheeting,

- 4 400 m 2 Construction road.