Part 1Works
2Bridge proportions
Ministers, when carrying out or maintaining the principal works, must ensure—
a
that the Forth Crossing provides headroom of not less than 47.85 metres above ordnance datum (Newlyn) between—
i
Central Tower and the North Tower, and
ii
Central Tower and the South Tower,
b
that the Central Tower is located on Beamer Rock,
c
that there is a clear span between the Central Tower and the North Tower which is not less than 580 metres,
d
that there is a clear span between the Central Tower and the South Tower which is not less than 580 metres,
e
that the height of the Central Tower does not exceed 220 metres above ordnance datum (Newlyn), and
f
that the height of the North Tower and the South Tower does not exceed 210 metres above ordnance datum (Newlyn).