The construction work on the Wiental Canal, the largest canal construction project in Vienna's history, is entering a crucial phase: As the city of Vienna announced in a press release on Thursday, the 135-meter-long "super-drill," which will bore the tunnel tube with an outer diameter of almost four meters along six districts directly under the Wien River from Margareten to Auhof, arrived in Vienna on Wednesday night.

"Super-Drill" for Wiental Canal Construction Work Arrives in Vienna

"The largest water protection project in the city is being created under the Wien River by 2028. The new Wiental Canal will relieve the sewer network during heavy rain and protect the Wien River from contamination," emphasized Climate Councilor Jürgen Czernohorszky (SPÖ).

To keep the impact on the surface as minimal as possible, the Wiental Canal will be drilled as a tunnel tube with an outer diameter of almost four meters and expanded with an inner diameter of three meters. A specially constructed tunnel boring machine from Germany will be used for this purpose.

Two-Phase Construction Process Planned, Commissioning in 2028

The construction project itself is divided into two main phases: The western advance starts in spring and lasts until summer 2026, while the eastern section will be realized from autumn 2026 to spring 2027. A total of 43 connection points to the existing sewer system will be created. The completion of the project is planned for the end of 2027, with commissioning in 2028.

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(APA/Red)

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