广(Guang)州(Zhou)市(Shi)石(Shi)滩(Tan)大(Da)道(Dao)（(?)增(Zeng)滩(Tan)公(Gong)路(Lu)横(Heng)岭(Ling)段(Duan)）(?)改(Gai)造(Zao)工(Gong)程(Cheng)是(Shi)县(Xian)道(Dao)X291的(De)一(Yi)段(Duan)，(?)起(Qi)点(Dian)接(Jie)新(Xin)城(Cheng)大(Da)道(Dao)、(?)南(Nan)北(Bei)大(Da)道(Dao)，(?)终(Zhong)点(Dian)接(Jie)东(Dong)西(Xi)大(Da)道(Dao)、(?)沙(Sha)园(Yuan)路(Lu)，(?)全(Quan)长(Chang)2.724km,标(Biao)准(Zhun)断(Duan)面(Mian)为(Wei)60m.按(An)双(Shuang)向(Xiang)八(Ba)车(Che)道(Dao)进(Jin)行(Xing)改(Gai)造(Zao)，(?)标(Biao)准(Zhun)为(Wei)一(Yi)级(Ji)公(Gong)路(Lu)结(Jie)合(He)城(Cheng)市(Shi)主(Zhu)干(Gan)道(Dao)，(?)设(She)计(Ji)速(Su)度(Du)80km/h,局(Ju)部(Bu)限(Xian)速(Su)60km/h，(?)横(Heng)断(Duan)面(Mian)组(Zu)成(Cheng)为(Wei)5.0m人(Ren)行(Xing)道(Dao)+1.5m树(Shu)池(Chi)+2.5m道(Dao)+1.5m侧(Ce)化(Hua)带(Dai)+0.5m+3.75m+3.5*3m+0.75m行(Xing)车(Che)道(Dao)+8.0m中(Zhong)央(Yang)化(Hua)带(Dai)+0.75m+3.5*3m+3.75m+0.5m行(Xing)车(Che)道(Dao)+1.5m侧(Ce)化(Hua)带(Dai)+2.5m道(Dao)+1.5m树(Shu)池(Chi)+5.0m人(Ren)行(Xing)道(Dao)。(?)主(Zhu)要(Yao)施(Shi)工(Gong)内(Nei)容(Rong)为(Wei)路(Lu)基(Ji)，(?)路(Lu)面(Mian)，(?)人(Ren)行(Xing)天(Tian)桥(Qiao)，(?)市(Shi)政(Zheng)管(Guan)道(Dao)，(?)电(Dian)力(Li)管(Guan)道(Dao)、(?)管(Guan)沟(Gou)，(?)挡(Dang)土(Tu)墙(Qiang)，(?)交(Jiao)安(An)、(?)照(Zhao)明(Ming)及(Ji)绿(Lu)化(Hua)等(Deng)配(Pei)套(Tao)工(Gong)程(Cheng)，(?)其(Qi)中(Zhong)土(Tu)石(Shi)方(Fang)开(Kai)挖(Wa)13万(Wan)立(Li)方(Fang)、(?)填(Tian)方(Fang)约(Yue)3万(Wan)立(Li)方(Fang)、(?)市(Shi)政(Zheng)管(Guan)道(Dao)4.299 km、(?)电(Dian)力(Li)管(Guan)道(Dao)2.76 km、(?)人(Ren)行(Xing)天(Tian)桥(Qiao)2座(Zuo)、(?)水(Shui)稳(Wen)层(Ceng)23万(Wan)m2、(?)沥(Li)青(Qing)路(Lu)面(Mian)31万(Wan)m2，(?)工(Gong)程(Cheng)中(Zhong)标(Biao)价(Jia)19912.0543万(Wan)元(Yuan)。(?)合(He)同(Tong)期(Qi)450日(Ri)历(Li)天(Tian)。(?)