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312国道无锡段扩建工程起自与苏州交界的望虞河沙墩港桥,途经无锡市5个区10个镇,止于与常州交界的西山港桥。全长48.43公里(其中改线里程27公里),全线采用双向四车道和六车道两种形式,工程总投资约15.73亿元。共有桥梁54座,其中特大桥和大桥12座(含跨线桥8座)、中小桥42座,土方量346万方,拆迁房屋30万平方米。
312 State Road Wuxi section of the expansion project from the junction with the Suzhou Wang Yu Shad Pier Harbor Bridge, via Wuxi City, five districts 10 towns, ending at the junction with the Changzhou Xishan Harbor Bridge. The total length of 48.43 kilometers (of which 27 km rerouted mileage), the whole line using two-way four lanes and six lanes in two forms, the total investment of about 1.573 billion yuan. A total of 54 bridges, of which 12 large bridges and bridges (including overpass 8), 42 medium and small bridges, earthwork volume 3.46 million square, demolition of houses 300000 square meters.