Along with the Clwyd, which river burst its banks in November 2012 causing devastation to the town of St Asaph ?
River Clwyd forest and passes through Cyffylliog, Bontuchel and Rhewl before its confluence with the main river. Then the Clwyd meanders northwards through the fertile Clwyd valley to St Asaph. Two miles north of St Asaph, the river is joined by a tributary as large as the main river, the River Elwy. In normal flows at low tide, the waters of these two rivers can be seen flowing side by side down the river with little mixing. The River Elwy has its source a long way to the west on the flanks of Moel Seisiog south-east of Llanrwst. It also has a
St Asaph severe congestion in the city. This congestion is having a detrimental effect on the city, and residents have repeatedly called for a bypass to take this north/south road and its traffic away from the city, but the National Assembly for Wales rejected these calls in 2004, presenting a further setback for residents campaigning on the issue. St Asaph is now home to Ysgol Glan Clwyd, a Welsh medium secondary school that opened in Rhyl in 1956 and moved to St Asaph in 1969. It was the first Welsh medium secondary school in Wales. St Asaph is twinned with the town