The historic cast iron Sean Heuston Bridge was constructed in 1827 to allow horse carriages to pass over the the River Liffey in Dublin. In 2003, the bridge was set to be included in the Luas (light rail network) and required strengthening to support the heavy traffic loads imposed by the rail network. Falsework comprising of a steel portal frame strucure was erected under the bridge prior to construction of structural steel reinforcement and addition light concrete topping. QMC Group undertook the task of placing the light weight concrete topping and removing the false work. The Sean Heuston Bridge is now an integral part of the Dublin Light Rail System.