Germany – Load-bearing structure design services – Gemeindewerke Haßloch - Neubau des Wasserwerks Benzenloch, Los 2 - Tragwerksplanungsleistungen

The Gemeindewerke Haßloch GmbH (GWH) operate six deep wells in the Duttweiler district, Neustadt a. d. Weinstraße municipality, the Benzenloch waterworks, the Rennbahnstraße underground reservoir, and the water tower on Trappenberg. The treated water is supplied to the municipalities of Haßloch and Iggelheim as well as to the Stadtwerke Neustadt, which also includes an emergency connection. The current drinking water output is approximately 2 million m³/a. The waterworks and plant and building technology have remained almost unchanged since their construction in 1969 and no longer meet today's standards. To maintain and ensure the water supply and to adapt the technology to current standards, the construction of a new waterworks is therefore necessary. This is to be realised in the immediate vicinity of the old building. The new building is to have a treatment capacity of 500 m³/h and a purified water tank of 750 m³. It is also planned to operate the treatment in the future in a 5- lane configuration, with the following treatment steps to be carried out: - Aeration by means of injectors - Iron and manganese removal in pressure filters - Deacidification by means of flat-bed aerators - Disinfection by means of UV plant. For water storage, there are currently 6 water chambers with a total volume of 6,500 m³ (waterworks 750 m³, underground reservoir 5,000 m³, water tower 1,000 m³). However, the storage capacity of the waterworks is to be increased, as the continued operation of the water tower is uncertain and existing storage capacities may be lost. Pump systems are required to achieve the operating pressure of 6 bar. These must be dimensioned so that this operating pressure is achieved and sufficient redundancy is available. The estimated net costs are: Cost group 300 Construction - Building Construction - 2,620,000 EUR. Cost group 400 Construction - Technical Installations - 3,250,000 EUR. With this invitation to tender, the structural design services are announced as Lot 2. The following are tendered separately: Lot 1 - Engineering services for civil engineering works and technical equipment planning. Bidding for several lots is permitted and desired.