|Location Map ( geo)|
|Distance:||10.3 miles (16.6 km)|
|Now part of:||A746|
|Route outline (key)|
The original B734 was a medium-length B-road on The Machars in Wigtownshire.
It started on the A714 at Braehead, to the south of Wigtown. It then headed south via Sorbie and detoured slightly to the east to go through Whithorn. After leaving town the road headed southwest for about a mile to end on the B735 end-on at Glasserton.
The road did not last long as it had been upgraded to Class I status by 1932. It became the A746, which it remains.