A345 road

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A345 road shield

A345 road
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Near Upavon crossing chalky farmland
Route information
Length: 27 mi (43 km)
Major junctions
south end: Salisbury
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  A36 A36 road
A303 A303 road
A3028 A3028 road
A342 A342 road
A4 A4 road
north end: Marlborough
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Road network

The A345 is a secondary A road in Wiltshire, England running from Salisbury to Marlborough and the A4. The road is a main south-north link across Salisbury Plain which is renowned for its rich archaeology and passes many ancient points of interest along its way.


The road begins in Salisbury at the Castle Roundabout and heads north out of the city passing closely by Old Sarum castle, taking a predominantly straight line to Boscombe Down and then Amesbury before meeting the A303 at Countess roundabout where it shares Countess Services with the major road. At this point it passes within 2 miles (3.2 km) of the World Heritage Site at Stonehenge. Continuing north the road passes near to Woodhenge and the Ministry of Defence Royal School of Artillery base at Larkhill. This part of the route can be particularly hazardous as there are often tanks crossing and the road is susceptible to subsidence. The next significant places are Netheravon, and then Upavon where the road briefly separates into a one-way system around the village, running concurrently with the A342 to Devizes. From here the A345 goes to Pewsey, where the Pewsey White Horse is best viewed, and then continues on to Marlborough ending at a roundabout leading to the High Street which is the A4 road.


Originally the A345 extended north of Marlborough to a junction with the A419 at Commonhead, south east of Swindon. From there it went through Swindon to meet the A419 again at Blunsdon.

When the M4 motorway was opened, the section from Marlborough to the motorway junction 15 became a northern extension of the A346. From the motorway to Commonhead, the road became part of the A419, and the route through Swindon was renumbered A4259 and A4311.

Between Amesbury and Durrington a 0.8 miles (1.3 km) section of the A345 was realigned further east away from the Woodhenge scheduled monument in 1968,[1] crossing to a further west alignment and incorporating the new roundabout at its junction with the A3028.

The southern terminus was originally further south along Castle Street at Salisbury market square, but with the opening of the Salisbury Inner Ring Road in 1969[2] the southern section was declassified.


  1. Robbie George (6 November 2011). "A345 that was". The Society for All British and Irish Road Enthusiasts. Retrieved 5 January 2013.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  2. "Wiltshire Community History". Wiltshire County Council. Retrieved 5 January 2013.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>

External links

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