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这座大桥总投资5．2亿元，预计三999年建成通车。桥长57815米，东西接线长用助米，桥面宽度为双向四车道动来。主桥桥型为不等高三塔预应力混凝土双索面斜拉桥，最大跨径310米。桥下净空16米，既不影响泄洪又能通过3000吨级船舶。预计建成后8．5年可收回全部投资。洞庭湖大桥可
The bridge has a total investment of 520 million yuan and is expected to be completed and opened to traffic in three thousand and ninety-nine years. The length of the bridge is 57815 meters. The east-west connecting line is used to help meters, and the width of the bridge is two-way four-lane. The main bridge type is a three-tower prestressed concrete double cable plane cable-stayed bridge with unequal height, with a maximum span of 310 meters. The 16-meter clearance under the bridge will neither affect flood discharge nor pass a 3000-ton ship. It is expected that all investments will be recovered in 8.5 years after completion. Dongting Lake Bridge can be