Planning Services for the New Construction of a Mixed Water Tender

• Country: Germany
• Summary: Planning Services for the New Construction of a Mixed Water Relief Structure with a Retention Soil Filter in Front of the Zka Chemnitz
• DET Ref No: 135079230
• Deadline: 25 Feb 2026
• Financier: Self Financed
• Purchaser Ownership: Government
• Tender Value: Refer Document
• Notice Type: Tender
• Document Ref. No.: 82083-2026
• Purchaser's Detail:
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• Description:
• Planning services for the new construction of a mixed water relief structure with construction of a retention soil filter in front of the Chemnitz central sewage treatment plant Planning services for the new construction of a mixed water relief structure with a retention soil filter in front of the ZKA Chemnitz The general drainage plan (GEP 2018), completed in October 2018, already includes an expansion of the ZKA. In addition to increasing the mixed water outflow to the sewage treatment plant to QM = 2,775 l/s, the upstream basins are to be expanded Compliance with the clarification condition required. Further deficits, which were not taken into account in the GEP, include the lack of performance of the discharge collector from the sewage overflow, the specific threshold load from the sewage overflow, the length to height ratio of the individual pools and the threshold load on the pool overflow. The following parcels are available for the construction of a new mixed water relief structure on the former screenings and sand trap storage area: 17, 83, 84/4 and 116/3 in the Heinersdorf district and 327/7, 223/3, 226/3, 227/3 and 227/4 in the Borna district. Previously, the pre-dimensioning was carried out as a rain overflow basin with a volume of 11,745 m³, sewage overflow as a self-regulating slot on both sides overflowed with a suspended channel, threshold length at least 122 m, maximum 220 m, height of sewage overflow 282.0 mHN, pool overflow 282.25 mHN, length = 30 m (a conversion to DHHN still has to be done, as the height system...
• Documents:

 Tender Notice