Curved　arch　bridges　with　curved　deck　supported　by　an　inclined　arch　either　through　web　members　or　without　are　studied.　Reference　to　shell-supported　bridges　is　first　made.　It　must　be　taken　into　account　that　even　if　the　deck　is　supported　by　a　shell,　its　bottom　free　edge　(usually　stiffened)　is　described　by　a　thrust　line,　so　that　the　shell　connects　the　curved　deck　(that　is　a　horizontal　arch)　with　an　inclined　3D　funicular　arch.　A　limit　case　is　that　the　ring　girder　of　the　curved　deck　and　the　funicular　arch　merge　dividing　the　shell　into　two　parts,　so　that,　if　shell　thickness　tends　to　zero,　no　shell　connects　them.　This　is　the　case　of　curved　bridges　supported　only　at　mid-span　by　an　inclined　arch.　The　efficiency　of　different　arches　is　compared.　Moreover,　the　deck　can　be　supported　not　only　at　mid-span　but　also　by　web　members　connecting　deck　girder　and　inclined　arch.　In　this　latter　case,　the　most　appropriate　form　of　the　inclined　arch　is　obtained.