Paragraph 4 I1

(1)

No meteorological station lattice tower may exceed a height of 315 metres above HAT.

(2)

Meteorological mast foundation structures must be of 1 or more of the following foundation options: monopole, multi-leg, gravity base or floating structure secured by chain and anchor.

(3)

No meteorological mast foundation structure employing a footing of driven piles may—

(a)

have more than 4 driven piles;

(b)

in the case of single-pile structures, have a pile diameter exceeding 10 metres or employ a hammer energy during installation exceeding 2,300 kilojoules;

(c)

in the case of structures with 2 or more piles, have a pile diameter exceeding 3.5 metres or employ a hammer energy during installation exceeding 1,900 kilojoules.

(4)

No meteorological mast foundation may have—

(a)

a seabed footprint (excluding subsea scour protection) exceeding 1,735 square metres;

(b)

a seabed footprint (including subsea scour protection) exceeding 4,657 square metres;

(c)

a main supporting structure exceeding 51.5 metres in width.

Annotations

Commencement

I1: Sch. 9 para. 4 in force at 26.8.2015, see art. 1