The tender includes the total renewal of the corrosion protection on interior and exterior surfaces in the Grimsel 2 construction phase with the following systems:

- Underwater tunnel armor

- Extension pipe of the throttle valve Grimselsee

- Upper distribution line incl. supply lines to machines

- Lower distribution line incl. supply lines to machines

- Underwater moated castle area

The exact work is described in Part 3D and essentially includes the following services:

- Work preparations in connection with corrosion protection remediation

- Create and ensure security and QA concept

- Construction site equipment with delivery of all necessary installations and their subsequent dismantling

- Spreading and removal of sediments

- Supply, installation and operation of the shaft access system

- Decoating, reworking welds, surface preparation, coating, testing prepared surfaces, coatings, disposal of blasting material, QA documentation

The tender includes the total renewal of the corrosion protection on interior and exterior surfaces in the Grimsel 2 construction phase with the following systems:

- Underwater tunnel armor

- Extension pipe of the throttle valve Grimselsee

- Upper distribution line incl. supply lines to machines

- Lower distribution line incl. supply lines to machines

- Underwater moated castle area

The exact work is described in Part 3D and essentially includes the following services:

- Work preparations in connection with corrosion protection remediation

- Create and ensure security and QA concept

- Construction site equipment with delivery of all necessary installations and their subsequent dismantling

- Spreading and removal of sediments

- Supply, installation and operation of the shaft access system

- Decoating, reworking welds, surface preparation, coating, testing prepared surfaces, coatings, disposal of blasting material, QA documentation