SCG(SH:600170) Jie Fang Ri Bao·2026-01-02 02:34Core Points - The construction of the North-South Passage, a major infrastructure project in Shanghai, officially commenced after over 20 years of planning, marking the completion of the "last piece" of the city's grid-like main road network [1] - The North-South Passage is a significant investment exceeding 10 billion yuan and is part of Shanghai's "14th Five-Year Plan" major transportation projects, expected to reshape the spatial layout of the eastern central urban area upon completion [1] Group 1 - The North-South Passage runs parallel to the North-South Elevated Road, primarily consisting of underground tunnels, stretching 14.55 kilometers from the Zhonghuan Dabaishu Interchange to the intersection of Yanggao South Road and Chengshan Road [1] - The construction is divided into three sections: the Puxi section, the cross-river section, and the Pudong section, with the current phase focusing on the Puxi and cross-river segments, covering approximately 6.35 kilometers [1] - The first construction point is located at the intersection of Quyang South Road and Hongguan Road in Hongkou District, where the shield tunneling machine will commence operations [1] Group 2 - The North-South Passage was first proposed in 2004 during the planning of the CBD core area, and its construction was delayed due to the need for thorough planning and validation of its design and functionality [2] - The project was officially included in the "Shanghai Urban Master Plan (2017-2035)," with Shanghai Urban Investment Road and Bridge Group Co., Ltd. involved in the planning and execution of the Puxi and cross-river sections [2] Group 3 - The construction scale of the North-South Passage is comparable to that of the North Horizontal Passage, featuring a 15-meter diameter single-tube double-layer tunnel designed for a speed of 60 km/h and a height limit of 3 meters for small vehicles [3] - The construction methodology will utilize a combination of surface excavation and underground shield tunneling, applying lessons learned from the North Horizontal Passage [3] Group 4 - The North-South Passage is expected to be the world's longest underground continuous flow road in a central urban area, facing higher construction difficulties and more complex environmental conditions compared to the North Horizontal Passage [4] - The average excavation depth for the North-South Passage will be approximately 10 meters deeper than that of the North Horizontal Passage, necessitating innovative construction techniques to address anticipated challenges [4]