景(Jing)洪(Hong)至(Zhi)勐(Meng)海(Hai)高(Gao)速(Su)公(Gong)路(Lu)主(Zhu)线(Xian)起(Qi)自(Zi)景(Jing)洪(Hong)市(Shi)东(Dong),(?)接(Jie)小(Xiao)勐(Meng)养(Yang)至(Zhi)景(Jing)洪(Hong)高(Gao)速(Su)公(Gong)路(Lu),(?)止(Zhi)于(Yu)勐(Meng)海(Hai)县(Xian)城(Cheng)南(Nan),(?)主(Zhu)线(Xian)全(Quan)长(Chang)54.229公(Gong)里(Li)。(?)澜(Lan)沧(Cang)江(Jiang)特(Te)大(Da)桥(Qiao)全(Quan)长(Chang)523米(Mi),(?)主(Zhu)跨(Kua)300米(Mi),(?)是(Shi)景(Jing)海(Hai)高(Gao)速(Su)公(Gong)路(Lu)重(Zhong)点(Dian)控(Kong)制(Zhi)性(Xing)工(Gong)程(Cheng),(?)2020年(Nian)12月(Yue)15日(Ri)合(He)龙(Long),(?)为(Wei)景(Jing)海(Hai)高(Gao)速(Su)按(An)期(Qi)建(Jian)成(Cheng)通(Tong)车(Che)奠(Dian)定(Ding)了(Liao)坚(Jian)实(Shi)基(Ji)础(Chu)。(?)