The　main　span　of　Xintongshan　bridge　on　Fueling　in　Fujian　province　is　low　through　concrete　filled　steel　tube　rigid-framed　tied　arch　with　three　spans(51　m　+75　m　+51　m).　The　cross　section　of　arch　rib　except　the　part　close　to　the　arch　springer　is　new　dumbbell-shaped　section　which　is　different　from　the　traditional　one.　Such　section　is　maded　up　of　two　steel　tubes　which　are　jointed　together　with　steel　webs　and　H-shaped　steels　and　is　without　concrete　in　web　space.　Such　section　can　avoid　some　great　cracks　in　the　weld　during　the　construction.　The　paper　briefly　introduces　the　static　load　test　and　the　theoretical　analysis　of　the　bridge　after　construction.　The　methods　of　modified　lattice　cross-section　presented　in　reference　is　used　in　the　theoretical　calculation　of　this　project.　The　calculations　meet　well　with　test　results.　This　paper　provides　some　references　to　the　construction　of　such　bridge.