Dual success for SONNTAG Bau

The trenchless construction of an aircushion culvert under the rivers Enz and Nagold commissioned by the municipal sewage Pforzheim (ESP) was awarded two prestigious national and international prizes. Executing building contractor of this 16 million euro project was the company SONNTAG Baugesellschaft. The branch office in Bingen was responsible for pipe jacking of 1400, 1600 and 2200 diameter tunneling pipes and provided the engineering work, as well, all from a single source.

First of all, the “Enz” culvert earned the "Big Project and BGreen Award" in the category "water conservation“. The prize is awarded in Dubai every year in honour of special construction projects in the areas of "engineering" and "sustainability".

The second prize was the GSTT Gold Award for outstanding trenchless construction projects. For SONNTAG Baugesellschaft it was already the third GSTT award as a project partner. “Remarkable achievements, with which we have made a beautiful Christmas present to ourselves”, as the SONNTAG corporate group responsives commented on the prize awarded in early December at the engineering conference "Dortmund Sanierungstagen".

The GSTT Award is presented by the "GERMAN SOCIETY FOR TRENCHLESS TECHNOLOGY e.V.” [Deutsche Gesellschaft für grabenloses Bauen und Instandhalten von Leitungen e. V.], in order to highlight innovative engineering and heighten awareness of the potential cost savings as compared with open-air construction. Not least of all, it’s about environmental issues, because underground pipe-jacking allows for greater conservation of natural resources.

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The proud winners at the award ceremony in Dortmund: 1st from the right:. Branch office manager Bingen Alfons Bongard, 2nd from right – signing clerk Iris Sonntag, 3rd from the left: Chief engineer Bingen Bernd Seis and representatives of the city of Pforzheim and engineering consultants.