江苏省省道239常淳线常州卜弋～溧阳段全长48.633km,卜弋起始路段6.9km,于1997年年底完工,其余路段1998年12月全面竣工通车。随着经济的持续发展和经过五年的运营,尤其是超重车辆和交通量的增长,近几年,常淳线全线相继出现了程度不同的各种路面病害,全线好路率急剧下降,已 Changshu, Changzhou, Jiangsu Province Line Changyin Bu Yi ~ Liyang paragraph length 48.633km, Bu Yi initial road 6.9 km, completed by the end of 1997, the rest of the road in December 1998 was fully opened to traffic. With the sustained economic development and five years of operation, especially the growth of overweight vehicles and traffic volume, in recent years, a great variety of road diseases have emerged in varying degrees along the Changchun Line.