A81 Highway in Sindelfingen and Böblingen once more blocked
The A81 highway, a crucial commuter route connecting Lake Constance and Stuttgart, will be fully closed between Böblingen and Sindelfingen from Friday evening, 8th August, at 10 pm, to Monday morning, 11th August, at 5 am, due to bridge demolition and expansion work[1].
During this period, several on-ramps at the Echterdinger Ei, which connects the A8 and B27 in the Esslingen district, will be blocked for construction work[2][3]. Similarly, the highway closure on the A81 is due to the demolition of a bridge between the Böblingen-Hulb and Sindelfingen-Ost interchanges[4].
This closure is another step in the construction work to expand the A81, which is urgently needed due to the increasing traffic volume. Before and after Böblingen/Sindelfingen, the A81 is already three lanes wide. The construction work includes weekend closures for bridge demolition or installation[5].
The BASt plans a "covering over a length of 850 meters" - a kind of tunnel to muffle traffic noise on the A81[6]. Construction on the A81 near Böblingen/Sindelfingen will cause highway closures over the second August weekend.
While the specific official detour routes for this closure are not detailed in the search results, common detours might include using the B464 federal road, which runs roughly parallel and connects Böblingen with Sindelfingen and nearby towns[7]. Alternatively, traffic may be rerouted via the A8 autobahn for part of the journey around Stuttgart, then connecting back to local roads reaching Sindelfingen[8]. Local detours often use carefully planned exits and smaller highways to mitigate congestion during full closures.
Since the temporary bridge near Böblingen Motorworld has been reopened recently, some traffic flow might be partially restored, which could influence detour planning[2]. For precise and current detour routes, travelers should consult official traffic authorities (e.g., the Baden-Württemberg road authority or local Verkehrsinfo services) or the A81 highway signage when in the affected area.
All work on the A81 is carried out with traffic running. The temporary bridge is expected to be fully operational from the beginning of next week[9]. The Autobahn GmbH advises driving on to the Leinfelden interchange and entering the A8 there[10]. Both exits at Leinfelden-Echterdingen and Stuttgart-Vaihingen/Möhringen are closed during this period.
Up to 150,000 vehicles are expected to use this route by 2030[11]. Therefore, those familiar with the area are advised to bypass the area widely during the closure. Those coming from Stuttgart cannot drive onto the A8 towards Munich or Karlsruhe.
In summary, the A81 will be fully closed between Böblingen and Sindelfingen in August 2025 for bridge work[1]. No detailed official detour routes have been found in search results. Likely detours include the B464 or A8 routes and local roads with traffic signs directing through appropriate alternate paths. Recent reopening of a temporary bridge near Böblingen may affect traffic patterns[2]. Check official local traffic information for real-time detour guidance. If you plan to travel this route, consulting official roadwork updates or navigation systems configured with live traffic will provide the most accurate detour information.
In light of the A81 highway closure between Böblingen and Sindelfingen, general-news outlets might report on alternative routes for commuters, such as the B464 federal road or the A8 autobahn. Additionally, weather forecasts could potentially impact travel plans, as harsh weather conditions may exacerbate traffic congestion caused by the highway closure.
