Germany – Architectural, engineering and planning services – GÖ Enz Vaihingen

Revitalisation of the Enz at Vaihingen: Landscape planning for the revitalisation of the Enz in accordance with §§ 39 ff HOAI The Stuttgart Regional Council plans to revitalise the Enz over a total length of approx. 3.6 km in three areas: Vaihingen urban: urban area of Vaihingen between the hydropower plant KE (Kreuzer and Eberlein) and the B10 bridge (km 27.500 to km 28.200; approx. 700 m length) Vaihingen rural: outside the urban area of Vaihingen (km 25.500 to km 27.500; approx. 2.0 km length) Roßwag: area in the district of Roßwag below the Roßwag hydropower plant (km 30.750 to km 31.650; approx. 900 m length) The planned measures aim to improve the ecological structure and dynamics of the watercourse and promote natural development. For the urban area, only instream measures are planned. Outside the urban area, typical revitalisation measures such as flow dividers, gravel islands, horseshoe groynes, secured deadwood and triangular groynes will be used. In addition, the planning and implementation of rest areas or access points to the Enz is envisaged. As part of the construction and planning services, close coordination with the measures of the 2029 Garden Show, hydropower use and flood protection interests must be ensured. The area includes various protected areas, including water protection areas, floodplains, FFH areas, biotopes under § 30 BNatSchG, bird sanctuaries and landscape protection areas. The measures are to be implemented in accordance with water law and nature conservation requirements. The tender includes the necessary planning services for LP 5-9, specialist advice, coordination with authorities, supervision of the implementation of the revitalisation measures in the described area and functional control after completion of the measures, various success controls and the zero measurement of the success control according to LUBW 2015. The start of the service is 20.07.2026.