24. A length of 345 metres of highway, comprising the existing A303 circulatory carriageway (and related highway verge and footway links on the east and west sides of the A345 route) at Countess junction roundabout, together with the following connecting lengths of slip road—
(a)a 14 metre length of the existing A303 eastbound diverge slip road commencing from the edge of the circulatory carriageway and extending in a westerly direction;
(b)a 17 metre length of the existing A303 eastbound merge slip road commencing from the edge of the circulatory carriageway and extending in an easterly direction;
(c)a 25 metre length of the existing A303 westbound diverge slip road commencing from the edge of the circulatory carriageway and extending in an easterly direction; and
(d)a 26 metre length of the existing A303 westbound merge slip road commencing from the edge of the circulatory carriageway and extending in a westerly direction,
as shown at point C on sheet 3 of the de-trunking plans.