|Location Map ( geo)|
|Via:||Christchurch & Southbourne|
|Distance:||5.2 miles (8.4 km)|
|Meets:||A35, A337, A35, B3347, A35|
|Route outline (key)|
It starts at a roundabout where the A35 meets the A337 in Somerford. It heads southwest along the pre-bypass A35 most of the way into Christchurch. However, it then reaches a roundabout where it turns right (the old A35 continued ahead) and then meets the A35 again at a large roundabout.
The B3059 then multiplexes west along the A35 past the centre of Christchurch and across the River Avon before regaining its number at its original eastern end at a set of traffic lights. It heads southwestwards to cross Tuckton Bridge over the River Stour into the borough of Bournemouth.
After another roundabout the B3059 enters Southbourne. It gets to within two blocks of the coast although the sea never becomes visible. After running parallel to the coast for half a mile the road zigzags inland through West Southbourne. Here it TOTSOs left to end on the A35 once more at a T-junction to the west of Pokesdown. Originally the B3059 did not TOTSO and so ended a short distance further east opposite Pokesdown station. This junction is now provided with traffic lights.