2. Works in connection with waterways, including—N.I.
(a)the cleansing, widening, deepening, covering or otherwise improving of existing waters;
(b)the dredging and maintenance of channels;
(c)the cutting of new drains where required;
(d)the abstraction from any source of any water necessary to the purposes of navigation;
(e)the construction of locks, dams, culverts, overflow culverts, pumping stations, aqueducts or viaducts;
(f)the raising and repairing of existing embankments, and the construction of new embankments;
(g)the sinking of pumping sumps;
(h)the construction and repairing of sluices or valves;
(i)the removal and disposal of old spoil banks;
(j)the construction of hydro-electric power stations in connection with any pumping station or pumping sump.