Lower Saxony

Inshore

Lower Saxony

Eckertalsperre

Eckertalsperre

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

Innerstetalsperre

Innerste Dam

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

Sösetalsperre

Sösetalsperre

Site details

  • River dammed: Söse

Work carried out:

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

Granetalsperre

Grantalsperre

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

Okertalsperre

Okertalsperre

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

Odertalsperre

Odertalsperre

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