Construction work on a new retaining wall along the Wittgensdorfer Bach, in the area between Obere Hauptstraße 134 and 152 in Wittgensdorf, began this week. The existing wall must be replaced with a new structure for reasons of structural stability. As a result, Obere Hauptstraße has been completely closed since yesterday (Monday).
Please note: The full closure applies only during working hours (Mondays to Fridays from 7.00 am to 4.30 pm); see press release 620.*
The overall project will run from September 2026 to August 2027 and is divided into several construction phases. During this period, the retaining wall, which is no longer structurally sound, will be rebuilt with micro-pile anchoring; the wall crest and coping, including the parapet of a further retaining wall, will be completely renewed; and the left-hand embankment and the riverbed will be restored to their natural state.
For the first construction phase, the road will be fully closed during the day* from 7 September to 9 October 2026. The sheer size of the drilling rig alone – not to mention applicable health and safety regulations – means that, during this period, a full closure of Obere Hauptstraße within the construction site is the only option.
The diversion will be via Leipziger Straße – Bornaer Straße – Wittgensdorfer Straße – Chemnitzer Straße.
The construction site can be passed through during the autumn half-term holidays. The next phase of construction will begin on 26 October 2026. The retaining wall is scheduled for completion in August 2027.
Following a public tender, the contractor is Phönix Bau GmbH from Aue. The construction costs amount to around 850,000 euros.
For technical reasons, a full road closure is unfortunately unavoidable. This has been agreed and co-ordinated by the Transport and Civil Engineering Office in consultation with the traffic authorities, the police, Chemnitzer Verkehrs-AG (CVAG), Regiobus Mittelsachsen, the fire service and ASR.
Passengers on CVAG and regional services will be particularly affected, as bus routes will no longer be able to run continuously and, despite all efforts, it has not been possible to arrange suitable diversions. The walk between the CVAG’s replacement stops is therefore around 800 metres.
Detailed information on the diversions and public transport timetables is provided by the respective transport operators and is also available at www.cvag.de and www.regiobus.com.
*updated on 22 September 2026