Clever grout ing plugs leaks in Welsh dams

摘要

Shon Sheffrey reservoir and the countryside around it lie on the cusp of industrialised south Wales. Sitting on the outskirts of the town of Tredegar, birthplace of National Health Service creator Aneurin Bevan,the Shon Sheffrey and its Dwr Cymru Welsh Water stablemate Rhymney Bridge reservoir help delineate the transformation of the land from rolling foothills of the Brecon Beacons in the north to the sprawling industrial towns and valleys of the south.