该立交(jiao)(jiao)思路为两(liang)层(ceng)互通立交(jiao)(jiao)式(shi)立交(jiao)(jiao)，尚直航核心为南方北方向(xiang)，建在第两(liang)层(ceng)，路经全全长约(yue)2020.907米，途径(jing)(jing)红(hong)(hong)线(xian)(xian)(xian)(xian)宽60米，双向(xiang)8车(che)道(dao)(dao)(dao)。西宝高速—高架疾(ji)速干道(dao)(dao)(dao)主(zhu)线(xian)(xian)(xian)(xian)为工(gong)具(ju)(ju)向(xiang)，位于第二(er)层(ceng)，双向(xiang)4车(che)道(dao)(dao)(dao)。三(san)桥(qiao)新街—世纪小道(dao)(dao)(dao)主(zhu)线(xian)(xian)(xian)(xian)为工(gong)具(ju)(ju)向(xiang)，位于空中一层(ceng)，途径(jing)(jing)全长约(yue)1705.642米，途径(jing)(jing)红(h?ong)(hong)线(xian)(xian)(xian)(xian)宽80～100米，双向(xiang)10车(che)道(dao)(dao)(dao)（后(hou)围寨环岛以西红(ho??ng)(hong)线(xian)(xian)(xian)(xian)宽100米，环岛以东红(hong)(hong)线(xian)(xian)(xian)(xian)宽80米）。立交(jiao)(jiao)设(she)想(xiang)共包罗(luo)两(liang)条(tiao)主(zhu)线(xian)(xian)(xian)(xian)（尚航线(xian)(xian)(xian)(xian)和三(san)桥(qiao)新街主(zhu)线(xian)(xian)(xian)(xian)）、十条(tiao)匝道(dao)(dao)(dao)、九条(tiao)空中辅(fu)道(dao)(dao)(dao)和一个环岛。

1、主线桥(q??iao)钢(gang)箱(?xiang)梁去接(jie)纳梁腔(qiang)体十箱(xiang)室(shi)截面(mian)布置图，梁高1800mm，全(quan)宽(kuan)29000mm，箱(xiang)室(shi)底(di)板(ban)(ban)总(zong)宽(kuan)21000 mm，内(nei)侧腹(fu)板(ban)(ban)处梁高1800mm，腹(fu)板(ban)(ban)间距2000mm，箱(xiang)梁主体均用Q345qD钢(gang)，顶板(ban)(ban)厚(hou)度20mm，底(di)板(ban)(ban)与腹(fu)板(ban)(ban)厚(hou)度24mm。

2、A、D匝道钢箱(xiang)梁接纳单箱(xiang)体四箱(xiang)室(shi)断面布局，梁高(gao)1600mm，全宽11000mm，箱(xiang)室(shi)底板(ban)(ban)(ban)(ban)总宽7000 mm，内侧(ce)腹板(ban)(ban)(ban)(?ban)处(chu)梁高(gao)1600mm，腹板(ban)(ban)(ban)(ban)间距2000mm，箱(xiang)梁主体接纳Q345qD钢，顶板(ban)(ban)(ban)(ban)厚20mm，底、板(ban)(ban)(ban)(ban)厚度24mm。

3、G匝道钢箱(xiang)(xiang)梁(liang)接(jie)纳(na)单箱(xi?ang)(xiang)体(ti)两箱(xiang)(xiang)室断面布局，梁(liang)高1400mm，全宽8000mm，箱(xiang)(xiang)室底板(ban)总宽4000 mm，内侧腹(fu)板(ban)处(chu)梁(liang)高14??00mm，腹(fu)板(ban)间(jian)距2000mm，箱(xiang)(xiang)梁(liang)主体(ti)接(jie)纳(na)Q345qD钢，顶板(ban)厚(hou)20mm，底、板(ban)厚(hou)度(du)24mm。

4、I匝道钢(gang)(gang)箱(xiang)梁接(jie)(jie)纳孩(hai)子单(dan)柜体两箱(xiang)室(shi)横断面布局(ju)图，梁高1600m?m，全(quan)宽(kuan)(kuan)8000mm，箱(xiang)室(shi)底板(ban)(ban)宽(kuan)(kuan)??4000 mm，内侧腹板(ban)(ban)处(chu)梁高1600mm，腹板(ban)(ban)间距(ju)2000mm，箱(xiang)梁主体接(jie)(jie)纳Q345qD钢(gang)(gang)，顶板(ban)(ban)厚20mm，底、腹板(ban)(ban)厚度24mm。

图：沣东新陈后围寨立交工业建筑工地

图：后围寨公程建成场地