5. The Corporation may, for the purpose of or in connection with the execution of any works under Article 17 or 18,—
(a)temporarily alter or interfere with the river and construct or place in the river all such temporary works as it may deem necessary or expedient;
(b)temporarily occupy and use the river;
(c)temporarily restrict, terminate or otherwise interfere with easements, fishing rights, water rights, navigation rights or other similar rights.