Selected Project Examples

Culvert "Wilde Weißeritz" at the Hydropower Plant Tharandt, Germany

Culvert "Wilde Weißeritz" at the Hydropower Plant Tharandt, Germany
The raw water conduit DN 1,200 in the river bed of the “Wilde Weißeritz” of the hydropower plant Tharandt to the hydropower plant Coschütz had been visibly rinsed free and damaged in the upper area and therefore required immediate replacement.
Since approximately 60 % of the drinking water supply of the city of Dresden depends on this conduit, there was an instant need for action. During the construction work, it had to be guaranteed that it was possible to supply the hydropower plant Coschütz with 5 000 m³/h of water within 48 hours and that the state road S 192 was always trafficable.

Fichtner services

  • • Topographic survey
  • • Subsoil investigations
  • Civil engineering structures (preliminary design, detailed engineering design, official approval procedure, final design, ender documents and tender action, assistance in contract award, construction supervision, follow-up during warranty period)
  • Structural engineering (preliminary design, detailed engineering design, official approval procedure, final design, ender documents and tender action)
  • Construction supervision
  • Impact regulation – related landscape management plan
  • Assessment of impacts on flora, fauna and habitat
  • Special technical paper about the provisions on the protection of species
  • Ecological monitoring of construction

Technical data

  • Cofferdam and culvert DN 1,200 for water drainage in the river bed
  • Bypass conduct DN 700 - DN 1,000 steel, 104 m long, incl. a pipe bridge over the mountain river with a length of 18 m, emergency structure with overflow DN 1,600 and two globe valves DN 600 for pressure reduction
  • 45 m of raw water conduct DN 1,200 steel in the Stahl in the trail of the existing conduct with open construction, installation in the river bed as culvert
  • Replacement of the existing moulded parts and fittings DN 1,200

Client

DREWAG Netz GmbH, Dresden, Germany