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(一)改建任务的提出京塘公路是在反动时期修建的。从通县到接近天津的一段,原有路面为3公尺宽的单幅水泥混凝土路面,板厚14～16公分。解放后,这条公路担负的运量不断增长,行车密度每日接近两千辆,但原有路基高度不足,有些地段发生雨季水淹、春季翻浆的现象,路面也损坏很多,已不能满足当前运输的需要。因此,1955年秋季就在原有基础上进行了改建,将路面加宽至7公尺,并有局部的改线和一部分路面的重建。改建工程是由公路总局第五工程局
(A) Reconstruction task proposed Jingtang highway was built during the reactionary period. From Tong County to a section near Tianjin, the original pavement is a single cement concrete pavement of 3 meters wide with a plate thickness of 14-16 cm. After the liberation, the amount of traffic carried by the highway was continuously increasing. The driving density was approaching 2,000 per day. However, the original subgrade was not high enough, some areas flooded during the rainy season, the spring flooded phenomenon and the road surface were also damaged, The need of transportation Therefore, the autumn of 1955 was rebuilt on the original basis, widening the pavement to 7 meters, with partial rerouting and partial rebuilding. Reconstruction project by the Fifth Engineering Bureau of Highway Administration