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一、建设决策 204国道长江以南段又名沪宜公路,沪宜公路的入沪路段全长43公里,沪嘉高速公路是紧靠上海市区的一段,它起自上海西北郊的祁连山路,迄于科学城嘉定南门的嘉戬公路,长15.9公里,加上两端与城市道路的联接线全长20.5公里。沪宜公路的前身为锡沪公路,始建于1935年,当时是单车道,砂石路面,沿自然村落走向,木桥砖涵,线形极差。半个世纪来,特别是解放后的三十多年来,几经改建,路幅由狭变宽,路面已从低级、中级逐渐变成次高级、高级,所有桥梁亦已由钢筋混凝土代替了木结构。但随着苏南苏北工农业的发展,使沪宜公
I. Construction Decision 204 National Highway south of the Yangtze River, also known as Shanghai-Shanghai Highway and Shanghai-Shanghai Highway, is 43 kilometers in length. Shanghai-Jia Expressway is a section close to downtown Shanghai. It starts from Qilian Mountain in the northwestern suburbs of Shanghai Road, as of Science City Jiading South Gate Jiaxing Road, 15.9 km long, plus the two ends of the city road connection length of 20.5 km. The Shanghai-Yi highway, formerly known as the tin-Shanghai highway, was first built in 1935, when it was a single lane, gravel road, along the natural village toward the wooden bridge brick culvert, poor linear. In the past half a century, especially in the more than 30 years after the liberation, after several alterations, the width of the road has been narrowed and the road has changed from a lower level to an intermediate level. The bridge has also been replaced by reinforced concrete structure. However, with the development of southern Jiangsu Su industry and agriculture, so Shanghai Yi