sentences:  The 2nd Marquess of Bute realised in the 1820s that the Glamorganshire Canal was not sufficient to cope with the demands of the iron trade and initiated a development plan.This plan included the construction of Bute Street as a main road in and out of the docks area and it was completed in 1830.Bute Street used to be part of the A470 road, up until Lloyd George Avenue was opened on 4 October 2000, it is now an unclassified road.