Due　to　the　superior　mechanical　properties　and　durability,　the　ultra-high　performance　concrete　(UHPC)　has　been　widely　used　for　the　design　of　various　types　of　structures,　while　research　on　its　performance　has　been　rapidly　growing　in　the　last　five　years.　While　the　application　of　UHPC　in　bridge　engineering　is　limited　due　to　its　higher　cost,　relatively　little　is　known　about　the　mechanical　behavior　of　UHPC　in　different　bridge　components.　In　order　to　inform　future　research　needs,　this　paper　provides　a　comprehensive　review　of　the　properties　of　UHPC　and　its　application　in　bridge　engineering.　Applications　in　various　bridge　components,　such　as　the　piers,　girders,　decks,　and　link　slabs　used　for　jointless　bridges　have　been　summarized.　This　review　also　discusses　future　research　on　optimized　UHPC　mix　designs　considering　economic　cost　and　its　applications　in　both　jointed　and　jointless　bridges.　(C)　2020　Elsevier　Ltd.　All　rights　reserved.