A350 road

A350 road. The A350 is a primary north-south route in the south-west of England, connecting the coastal port of Poole in Dorset to the market town of Chippenham in Wiltshire. Spanning approximately 104 kilometres, it serves as a vital transport corridor between the M4 motorway and the South Coast, passing through historic towns and the scenic landscapes of the Cranborne Chase and West Wiltshire Downs. The road facilitates key economic and social links across the region, intersecting with other major routes including the A36 and the A303 road.

Route description

Beginning at its southern terminus in Poole, the A350 commences at the Holes Bay junction, branching north from the A35 road. It traverses the urban fringes of Poole before entering the Blackmore Vale, passing through the market town of Blandford Forum, notable for its Georgian architecture following a great fire in the 18th century. Continuing north, the road ascends onto the chalk downlands, serving Shaftesbury, an ancient hilltop town founded by Alfred the Great. The route then crosses into Wiltshire near Gillingham, proceeding through Mere before meeting the A303 road at a roundabout interchange. North of Warminster, it has a multiplex with the A36 road before diverging near Westbury, passing close to the Westbury White Horse hill figure. The final section runs through Melksham and Lacock before terminating at a junction with the A4 road on the outskirts of Chippenham, providing direct access to the M4 motorway at Junction 17.

History

The origins of the A350 lie in a collection of ancient turnpike roads and drovers' routes that connected the market towns of Dorset and Wiltshire. Its modern designation and alignment were largely established in the 1920s and 1930s following the Ministry of Transport's road numbering scheme. Significant improvements were made in the mid-20th century, including bypasses around Blandford Forum and Shaftesbury to alleviate congestion in their historic centres. The construction of the Warminster bypass in the 1970s, which created the multiplex with the A36 road, was a major engineering project. Further realignments occurred near Westbury to improve safety and traffic flow. The road's history is intertwined with the region's development, from facilitating the transport of Purbeck stone to serving military traffic associated with Salisbury Plain.

Junctions

The A350 features numerous key junctions along its length, connecting it to other strategic routes. Major intersections from south to north include the start point with the A35 road at Holes Bay, and junctions for the A31 road near Wimborne Minster. It meets the B3081 road at Cranborne and intersects with the A30 road at Shaftesbury. A critical junction is with the A303 road at Mere, a primary route to London and the South West. North of Warminster, it merges with the A36 road from Salisbury, sharing a route before diverging near Westbury, where it also meets the B3097 road. Further north, it intersects the A4 road at Chippenham, providing the final link to the national motorway network via the M4 motorway.

Future developments

Several planned upgrades aim to address capacity and safety issues on the A350. Wiltshire Council has proposed significant improvements to the section between Melksham and Chippenham, including potential dual-carriageway segments to ease congestion, particularly at the Beanacre roundabout. In Dorset, there are long-standing discussions regarding further bypasses or relief roads for villages like Sturminster Newton to mitigate heavy goods vehicle traffic. The integration of the route with the evolving National Highways network, especially its connections to the A303 road and A36 road, remains a strategic priority. Environmental assessments and consultations, such as those concerning the Cranborne Chase Area of Outstanding Natural Beauty, will influence the scope and design of any future developments.

Category:A roads in Dorset Category:A roads in Wiltshire Category:Transport in South West England