Work carried out:

• ROV inspection

Work carried out:

• Installation of a coffer dam
• Installation of several valves

Work carried out:

• Inspection of the aeration mats

Work carried out:

• Dismantle the roller gate levers
• Video inspection

Work carried out:

• Inspect the overflow gates

Work carried out:

• Inspect the drainage conduit
• Remove and re-install the screen system

Site details:

• River dammed: Gottleuba
• Nearest town: Bad Gottleuba
• Purpose: Drinking water supply, flood protection (part of the Osterzgebirge flood protection system)
• Dam type: Concrete gravity dam with straight axis
• Built: 1965-1974 (Gesamtfertigstellung 1976)
• Commissioned: 1974

Work carried out:

• Inspection of the bottom outlets and drinking water supply
• Photo and video documentation

Work carried out:

• Dismantling and reassembling a screen unit

Work carried out:

• Inspection of the dam gate

Work carried out:

• Work on the dam wall

Site details:

• River dammed Dobrabach
• Nearest town: Radeburg (by Dresden)
• Purpose: Flood protection, low-flood augmentation, process and drinking water supply (natural seepage); acts an additional nature reserve with the Radeburg I reservoir (conservation)
• Dam type: Earth-fill dam with sloped clay core
• Built: 1939-1953 (Construction interrupted from 1943 to 1947)
• Rebuilt from 1977-1981
• Commissioned: 1953 (partial dam from 1951)

Work carried out:

• Inspection of the inlet constructionInstallation of a new inlet screen in front of the south gate

Work carried out:

• Inspection of the bottom outlets and intake screens
• Photo and video documentation
• Inspection with the "Hyball" ROV

Work carried out:

• Inspection of the bottom outlets and intake screens
• Photo and video documentation
• Inspection with the "Hyball" ROV

Site details:

• River dammed: Wilzsch
• Nearest town: Eibenstock/Erzgebirge
• Purpose: Drinking water supply, flood protection
• Dam type: Gravity dam with rock wall and arched dam, Intze type
• Built: 1926-1929
• Commissioned: 1930

Work carried out:

• Inspection of the bottom outlets, intake screens and the dam gate
• Search for the old Fange Dam and survey it
• Photo and video documentation
• Inspection with the "Hyball" ROV

Site details:

• River dammed: Koberbach and Erdbach
• Nearest town: Werdau
• Purpose: Process water supply, flood protection, recreation
• Dam type: Earth-fill dam with sloped clay core, straight axis
• Built:1926-1929
• Commissioned:1929

Work carried out:

• Inspection of the bottom outlets and intake screens
• Photo and video documentation
• Inspection with the "Hyball" ROV

Site details:

• River dammed: Querenbach
• Nearest town: Stollberg/Erzgebirge
• Purpose: Drinking water supply, flood protection (emergency flood retention area only)
• Dam type: Earth-fill dam with sloped clay core, straight axis
• Built: 1949-1954
• Commissioned: 1954

Work carried out:

• Inspection of the bottom outlets, intake screens and the gate mechanism
• Photo and video documentation
• Inspection with the "Hyball" ROV

Work carried out:

• Inspection of the bottom outlets and intake screens
• Photo and video documentation
• Inspection with the "Hyball" ROV

Site details:

• River dammed: Kleine Bockau
• Nearest town: Eibenstock/Erzgebirge
• Purpose: Drinking water supply, flood protection (emergency flood retention area only)
• Dam type:
• Gravity dam with rock wall and curved axis
• Built: 1949-1952
• Commissioned: 1952

Work carried out:

• Inspection of the bottom outlets, intake screens, dam gates and mechanism
• Photo and video documentation
• Inspection with the "Hyball" ROV

Work carried out:

• Inspection of the bottom outlets and roller gates
• Photo and video documentation
• Inspection with the "Hyball" ROV

Site details:

• River dammed: Zwickauer Mulde
• Nearest town: Eibenstock/Erzgebirge
• Purpose: Drinking water supply, flood protection, low-flood augmentation, hydroelectricity (planned)
• Dam type: Concrete gravity dam with straight axis
• Built: 1974-1984
• Commissioned: 1982 (Full completed in 1987)

Work carried out:

• Inspection of the bottom outlets and branches
• Photo and video documentation
• Inspection with the "Hyball" ROV

Site details:

• River dammed: Rote und Weiße Mulde, Saubach
• Nearest town: Schöneck/Vogtland
• Purpose: Drinking water supply, flood protection
• Dam type: Gravity dam with rock walls and curved axis
• Built:1920-1925
• Commissioned:1925

Work carried out:

• Inspect the drinking water intake pipes, intake screens, dam gate and the bottom outlet mechanism and brackets
• Photo and video documentation
• Inspection with the "Hyball" ROV