Site details

• River dammed: Ecker
• Nearest town: Bad Harzburg, District of Goslar
• Purpose: Drinking water supply, flood protection, low flood augmentation, power generation
• Dam type: Gravity dam
• Built: 1939-1942
• Commissioned: 1942

Work carried out:

• Installation of a bubble chamber with a connecting pipe

Site details

• River dammed: Innerste

Work carried out:

• Inspection of the surface seal with video recording
• Dismantling and reassembling the inlet seals
• Installation of a fine screen
• Coffer dam extension

Site details

• River dammed: Söse

Work carried out:

• Inspection of the inlet conduits and tunnels
• Inspection of the dam foundation
• ROV "Hyball" deployed

Site details

• River dammed: Grane
• Nearest town: Langelsheim, District of Goslar
• Purpose: Drinking water supply, flood protection, low-flood augmentation, power generation
• Dam type: Earth-fill dam / concrete and asphalt exterior seal
• Built: 1966-1969
• Commissioned: 1969

Work carried out:

• Construction of a screen unit for the dewatering conduit
• Installation of a bubble chamber with connecting pipe
• Installation of a screen rope on the retractable screen
• ROV "Hyball" deployed

Site details:

• River dammed: Oker
• Nearest town: Goslar
• Purpose: Drinking water supply, flood protection, low-flood augmentation, power generation
• Dam type: Arch dam
• Built: 1952-1956
• Commissioned: 1956

Work carried out:

• Clear till from the hoist track and in the tunnel inlet
• Clean, blast and coat the turbine inlets
• ROV "Hyball" deployed

Site details

• River dammed: Oder

Work carried out:

• Install screen on the dewatering conduit
• Installation of a bubble chamber with connecting pipe
• Clean the weirs in the outlet channel for the power station
• ROV "Hyball" deployed