The subject of this tender is the structural implementation of the execution package 1 from the lock package 1 of the locks on the Finow Canal. Execution package 1 consists of the locks Ruhlsdorf, Leesenbrück, Grafenbrück and the control center Zerpenschleuse. Lot 1 for the execution package 1 includes the dismantling and replacement of the lock systems (without electrical engineering/control), the new construction of the foreports including waiting and mooring points, the new construction of the company buildings (partly listed), the transfer routes for muscle-powered boats and the extension of the control center in Zerpenschleuse (structural part).

The construction contract mainly includes the following construction services:

1) General work:

- Technical processing

- Preparation and dismantling of the construction site area

- Preparation and dismantling of the construction site traffic routes inside and outside the BE areas

- Installation of the turbidity curtains on the upper and underwater side

- Securing the abutment of the existing subhead bridge by means of high-pressure injection, safety measures on the existing bridge

2) Demolition of the existing structure and production of the watertight excavation pit

- Advance lifting, insertion of the lateral sheet piling walls as excavation pit enclosure

- Production of watertight connection between shoring and bridge abutment wall

- Excavation of the lateral building backfill

- Demolition of existing bridge and bridge connection

- Demolition of the building stock up to UK underwater concrete floor, execution of the work under water

- Installation of belts and stiffeners

- Installation of micropiles

- Installation of the underwater concrete sole incl. cleaning of the contact surfaces UWB sole sheet pile wall by means of high-pressure water radiation

- Lenzing of the excavation pit and water retention

3) Ersatzneubau des Schleusenbauwerks

- Cleaning of the UWB sole and production of the compensating layer of unreinforced concrete

- Reinforcement and concrete for reinforced concrete floor

- Shelling, reinforcement and concreting of the walls

- Filling the edge areas with reusable excavated material

- Dismantling of the temporary stiffeners

- Assembly of the lock equipment and steel water components in solid construction Secondary concrete work on the lock equipment and steel water components, corrosion protection work steel hydraulic engineering

- Installation of masonry shell and execution of natural stone work, completion work on solid construction

- Partial dismantling of the sheet piling walls of the excavation pit enclosure

4) Design of foreports

- Demolition of the waiting areas incl. floating jetties and foreport fortifications

- New construction of waiting areas incl. floating jetties, dredging, bottom and embankment protection

- Construct excavation and water retention (catch dams) in the foreports

- New construction of the foreports

- Dismantling crossings in the upper and lower foreport

- Sheet piling walls of the excavation pit enclosure in the foreport burn down immediately

5) Company building

- Demolition and reconstruction of the Ruhlsdorf company building in accordance with monument regulations

- Construction of lock operating building with connection drinking water pipe and sewage collection pit incl. deep foundation.

- Laying of the cable ducts, final assembly of the electrotechnical equipment

6) Extension of the control center

- Production of the foundation as a reinforced concrete strip foundation for container modules

- Separation and relocation of the existing container module

- Arrangement of two new container modules

- Laying and adaptation of the access lines

- Relocation of the existing wastewater collection pit