 Construction of the 600 m ( 2 @,@ 000 ft ) Taff Viaduct ( Welsh : Traphont Tâf ) includes a dual @-@ carriageway roadway plus a foot and cycle path . South Glamorgan County Council was the local authority in charge of the project at the time and construction of the viaduct began in March , 1991 . The Taff Viaduct crosses the River Taff at Cardiff Bay . 
 Construction of the 600 m ( 2 @,@ 000 ft ) Taff Viaduct ( Welsh : Traphont Tâf ) <a href='uninflect' title='1'><mark>includes</mark></a> a dual @-@ carriageway roadway plus a foot and cycle path . South Glamorgan County Council was the local authority in charge of the project at the time and construction of the viaduct began in March , 1991 . The Taff Viaduct <a href='uninflect' title='2'><mark>crosses</mark></a> the River Taff at Cardiff Bay . 
Construction of the 600 m ( 2 @,@ 000 ft ) Taff Viaduct ( Welsh : Traphont Tâf ) include a dual @-@ carriageway roadway plus a foot and cycle path . South Glamorgan County Council was da local authority in charge of the project at the time and construction of the viaduct began in March , 1991 . TdaTaff Viaduct cross thdaiver Taff at Cardiff Bay .