Paragraph 33 Clearance over main rivers
No part of any 400kV overhead electric line may be installed or maintained directly above any main river at a height of less than 10.9 metres above the top level of the bank of that river.
No part of any 400kV overhead electric line may be installed or maintained directly above any main river at a height of less than 10.9 metres above the top level of the bank of that river.