# The Burbo Bank Extension Offshore Wind Farm Order 2014, Paragraph 6: Time limits


(1) Each steel monopile foundation forming part of the authorised development (excluding scour protection) shall not have a diameter which is greater than 8 metres.
(2) Each gravity base foundation forming part of the authorised development (excluding scour protection) must not have—
(a) a diameter at the level of the seabed which is greater than 35 metres;
(b) in the case of the WTGs, a base height which is greater than 6 metres above the level of the seabed;
(c) in the case of the offshore substation, a base height which is greater than 16 metres above the level of the seabed and less than 1 metre below LAT;
(d) in the case of the WTGs, a column diameter of greater than 9 metres.
(3) Each jacket foundation forming part of the authorised development (excluding scour protection) must not have—
(a) a width spacing between each leg at the level of the seabed which is greater than 35 metres;
(b) a leg diameter which is greater than 3 metres;
(c) a width spacing between each leg at MHWS which is greater than 35 metres;
(d) a pile sleeve height which is greater than 18 metres above the level of the seabed;
(e) a pile diameter which is more than 3 metres;
(f) more than one pile per leg, save in the case of the offshore substation where it shall not have more than four piles per leg;
(g) more than four legs;
(h) in the case of the offshore substation only, a suction caisson per leg which is greater than 15 metres in diameter.
(4) To reduce potential impacts on adult salmon migration—
(a) no more than 69 steel monopile foundations with a pile diameter of 6 metres or less (excluding scour protection) shall be installed as part of the authorised development;
(b) no more than 65 steel monopile foundations with a pile diameter between 6 metres and 6.5 metres (excluding scour protection) shall be installed as part of the authorised development;
(c) no more than 55 steel monopile foundations with a pile diameter between 6.5 metres and 7.5 metres (excluding scour protection) shall be installed as part of the authorised development;
(d) no more than 45 steel monopile foundations with a pile diameter between 7.5 metres and 8 metres (excluding scour protection) shall be installed as part of the authorised development.

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Source: https://www.legislation.gov.uk/uksi/2014/2594/schedule/1/paragraph/6 (the official version)
Page: https://openlegislation.uk/burbo-bank-extension-offshore-wind-farm-order-2014/schedule-1/paragraph-6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.