Baqiutian　Bridge　is　envisaged　in　a　design　applying　the　sustainability　concept.　The　bridge　is　a　deck　arch　with　a　braced　twin　arch　ribs　made　by　Ultra-high　Performance　Concrete　(UHPC),　saving　about　30%　material　compared　with　conventional　concrete　ones.　The　ribs　have　no　reinforcement　and　using　manufactured　sand　in　the　mix　to　improve　the　durability　of　the　arch　ribs,　and　further　reduce　the　consume　of　the　natural　resource.　The　arch　rib　has　an　effective　span　of　34 m,　precast　by　three　segments　and　connected　together　by　dry　joints,　which　can　reduce　the　shrinkage　stresses　of　UHPC　structures　and　enhance　the　construction　efficiency.　In　the　bridge,　the　spandrel　deck　structure　is　directly　connected　with　the　two　approach　spans　to　form　a　continuous　structure,　which　is　extended　to　the　approach　slab　behind　the　abutment,　thus　eliminating　all　the　deck　expansion　joints　in　the　whole　bridge　and　making　it　a　jointless　bridge.　Thus　the　bridge　has　no　the　problem　that　conventional　jointed　bridges　will　meet　in　service,　i.e.,　damage,　maintenance　and　replace　of　the　deck　expansion　joints　as　well　as　their　negative　influence　to　the　traffic　and　the　structures.　©　The　Author(s),　under　exclusive　license　to　Springer　Nature　Switzerland　AG　2025.