Swansea Canal coal and culm shipped from Swansea Docks suggest around 386,000 tons in 1839. The opening of the Tennant Canal to Swansea Docks in 1824 resulted in the Swansea Canal's riverside wharfs being improved, and tolls were reduced to maintain trade levels. The harbour facilities at Swansea were upgraded in 1852, when the river Tawe was diverted into a new channel to the east, and the original channel, which included the trans-shipment wharfs, became a floating harbour. A lock was constructed to give the canal boats direct access to the half-tide basin above the North Dock, and a loop of the
Swansea City Centre sq. ft) have been achieved here. The City Centre Strategic Framework notes that this demonstrates that a commercially viable office market can eventually be developed in Swansea city centre. Swansea Market, the Quadrant Shopping Centre and the St. David's Shopping Centre are situated in the middle of the city centre. The Quadrant Centre opened in the late 1970s and dominated by chain stores. It includes an adjacent multi-storey car park that opens directly into Debenhams on one floor. Swansea bus station is located on the western side of the centre, and Swansea Grand Theatre is next door to the station