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205国道河北省盐山县城至与山东省庆云县交界处汽车专用公路子1994年11月11日正式通车。该路段北起盐山县城北环路东端，南至与庆云县交界处，全长285km，全段为半幅一级汽车专用公路。路面宽10m，路面结构自下而上分别为45cm（分三层施工）灰土基层、12cm厚二灰碎石和7cm厚沥
205 National Road, Yanshan County, Hebei Province, and Qingyun County, Shandong Province at the junction of vehicle-specific road child November 11, 1994 was opened to traffic. The section stretches north from the east end of Beihuan Road in the county of Yanshan, to the junction of Qingyun County and the south, with a total length of 285km. The whole section is a half-grade first class motorway. Pavement width 10m, pavement structure bottom-up were 45cm (divided into three layers of construction) lime soil base, 12cm thick lime and gravel 7cm thick