东北里程最长跨海大桥开工建设

Core Points - The Dalian Changhai Bridge project has officially entered the substantial construction phase, marking the longest cross-sea bridge in Northeast China [1] - The project aims to resolve transportation issues for Changhai County, which has faced over 60 days of annual shipping disruptions due to natural factors [1] - The bridge will be built using a BOT (Build-Operate-Transfer) model, with a total investment of 7.9 billion RMB and a length of 25.5 kilometers [1] Investment and Construction Details - The project is expected to utilize over 70,000 tons of steel for the bridge and will involve 30 large machinery units, with a peak workforce of over 400 people [2] - The construction will focus on three main tasks: the main navigation pier foundation, the main trestle bridge setup, and the coastal interchange bridge construction [1][2] - The bridge is designed to have a dual four-lane configuration with a speed limit of 80 km/h and is scheduled for completion in 2029 [1] Economic and Social Impact - The completion of the bridge is anticipated to significantly enhance the economic development of Changhai County, improving access to medical, educational, and supply services [2] - The project is expected to transform the historical transportation challenges faced by the island residents, allowing for more reliable travel options [2]