交通部公路設計院今年为了适应公路建設大跃进的形勢需要,在大桥工程方面推广了分片包干設計法。茲就已組織的三個組的已确定了的大桥工程,擇其較重要者分別作簡括的介紹。下列各大桥均确定在今年兴建,其設計已基本完成或正赶办中;除特別注明者外,各桥载重均为汽—13与拖—60,行車道寬均为净—7,人行道寬1.5公尺;跨徑50 Ministry of Transportation Road Design Institute this year in order to adapt to the situation of the Great Leap Forward road construction needs, in the bridge project to promote the design of the patchwork design. I have already organized the three groups have been identified in the bridge project, select the more important, respectively, for brief introduction. The following bridges are all confirmed to be constructed this year. Their design has been basically completed or is being completed. Except otherwise specified, all bridges are steam -13 and tow -60, and the widths of the lanes are all -7. The sidewalks 1.5 meters wide; span 50