... by raising a natural lake (Figure 1) is retained as an impounding reservoir by a concrete gravity dam approximately 75 m long and 12 m high, of which only 5.6 m is above natural ground. The reservoir lies at an elevation of 400 m and supplies a treatment works 4 km downstream. anchors...

... pits along the downstream toe; reaming out and closed-circuit television (CCTV) surveys of existing inspection shafts, and; various in-situ and laboratory tests. ICE Publishing: All rights reserved 2013 anchors & anchorages dams, barrages & reservoirs temporary works Llyn...