Deptford Interchange

Deptford Interchange is a junction connecting the A36 and A303 to the northwest of Salisbury. It is an unusual design combining a trumpet and various other slip roads to make most of the turning movements freeflow. However A303 northbound to A36 east involves an at-grade right turn.

A serious of accidents in the early 1990s resulted in the installation of traffic lights and a 50mph speed limit. These measures were intended to be temporary. In 1995 proposals were made to eliminate the right turn by adding additional slip roads to the north side of the junction. Two options were put forward called the brown and yellow routes. It is not known which option was favoured before the scheme was cancelled. If built, the new slip roads would have created a weaving section on the northbound A303.

Brown option	Yellow option

Maps

1972 - before the bypass.

Routes

Route	To	Notes
A36	Warminster,
A36	Salisbury	Low Bridge. 4.2m 14'0"
A303	Honiton, Exeter, Deptford, Wylye, Mere. D.O.T. Weighbridge
A303	Andover, Winterbourne Stoke, Stonehenge