The road from Lerwick to the western districts was constructed over the steep and rugged heights of Wormiedale, for one mile of which a cutting was made from the upper side, which assisted in forming an embankment of five feet average on the lower. From thence to the head of Weesdale Voe the road ran comparatively easy. A large stone causeway, however, had to be built over the point of a sheet of water which communicated with the sea. In this causeway were six openings of two and a half feet by four feet for the free passage of the tide. From the head of Weesdale Voe to the Scord of Tresta, one mile, a cutting was made on the upper side, and a retaining wall built on the lower side of the road. To Gruting Voe, six miles, the road was easily prepared. On this line two bridges were erected: one at Bixter with piers of rubble masonry and the superstructure of stout oak, with a span of ten feet; the other at Tumlin of dry masonry with three openings. At the head of Gruting Voe, a causeway of stones, six feet high by thirteen feet broad, with seven openings of two and a half feet wide each, was constructed, crossing a part of the Voe for 120 yards, and thereby shortening the distance to Walls by three quarters of a mile. From Lerwick, southwards, a road of twenty-three miles was formed to Dunrossness, and portions of the Test road were also improved. Four stone bridges and a wooden one were constructed on this line over heavy and sometimes impassable streams. From the bridge at Fitch, four miles from Lerwick, a road of one and a half mile long was made, which joined the Scalloway road and the trunk line together. From the main line at the Olnafirth branch another road was cut for three and a quarter miles, connecting Olnafirth and Doura Voe, whence there is an easy access by boat to Lerwick. One stone bridge of twelve feet span and nine feet high was erected on this line.