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长山大桥总投资5.79亿元,历时3年多建成,是东北地区第一座真正意义的跨海大桥,其起点位于大连长海县大长山岛峙莲线,终点位于小长山岛蛎荞线,全长3.45公里,主桥长1.79公里,采用双向四车道一级公路标准,设计时速60公里,桥梁结构设计基准期100年,结构设计安全等级一级,主通航孔净宽230米,主桥桥墩设计抗船撞力900吨,航空限高75米。其主桥为双塔双索面三跨预应力混凝土矮塔
Changshan Bridge, a total investment of 579 million yuan, which lasted more than 3 years to build, is the first truly Northeast China Sea Bridge, its starting point is located in Changhai County, Dalian Zhangchang Mountain Island lotus line, the final point in the small Changshan Island oyster buckwheat Line, a total length of 3.45 km, the main bridge 1.79 km, the use of two-way four-lane highway standards, the design speed of 60 km, the bridge design period of 100 years, the structural design of a security level, the main navigation hole net width of 230 meters, Pier design anti-collision hit 900 tons, 75 meters high limit of aviation. The main bridge for the double-tower double-cable three-span prestressed concrete tower