Bute Street, Cardiff Bute Street, Cardiff Bute Street () is a street in Cardiff, Wales. It links Cardiff Bay (previously Tiger Bay) and Butetown with Cardiff city centre. It now has no road number. It runs from the dockside of the Mermaid Quay complex in the south, which is now a pedestrian zone, to the junction of Bute Terrace (A4160) in the north. What is today Bute Street was previously mostly meadow and marshland called Soudrey, the Cardiff south moors. The 2nd Marquess of Bute realised in the 1820s that the Glamorganshire Canal was not sufficient to cope with the demands of the
Cardiff Bay Barrage 1987, prior to approval of the construction of the barrage, the Cardiff Bay Development Corporation was established to proceed with redeveloping the docklands, a sixth of the entire area of the city of Cardiff. In November 1999, the barrage was completed, with the sluice gates closed at high water, to retain the seawater from the Bristol Channel within the 500 acre (200 hectare) bay. At first major water quality problems ensued which required the bay to be drained dry overnight and refilled each day. Eventually, oxygenation systems (based on those used at the Swansea Barrage) were installed which improved water