List of Articles 180 degree bend Open Access Article Abstract Page Full-Text 1 - The effect of the geometry of the scour around bridge abutments in the river bend فرهنگ امامی فر علیرضا مسجدی محمد حیدرنژاد Open Access Article Abstract Page Full-Text 2 - Control of local scour by symmetrical and asymmetrical collar around the bridge pier in river bend پریسیما عباسی علیرضا مسجدی محمد حیدرنژاد