青岛双山隧道及南延配套工程正式转入新桥建设阶段

Core Insights - The project of Shuangshan Tunnel and its southern extension is a key infrastructure initiative in Qingdao, with significant progress recently achieved in the demolition and reconstruction of Huarun Interchange [1] - The construction has officially entered the new bridge building phase, indicating a comprehensive acceleration of the project [1] Project Details - Huarun Interchange is located in a core area of Qingdao, facing challenges such as large bridge volume, narrow working space, heavy traffic flow, and complex underground infrastructure [1] - The new bridge construction is expected to be completed ahead of schedule, with the bridge engineering set to open by September 2026 and the overall project completion anticipated in the first half of 2027 [1] Infrastructure Improvements - The upgraded Huarun Interchange will feature a new three-road interchange and additional connections to the main bridge of Shuangshan Tunnel, facilitating rapid interchange among three major directions [1] - Ground roads will be expanded from the current one to two lanes to three to four lanes, enhancing traffic flow and contributing to the development of a new north-south traffic artery in Qingdao's eastern urban area [1]