From Roader's Digest: The SABRE Wiki
The A3098 is a very basic reclassification of the western portion of the B3098 from Frome to Westbury to A road, whilst retaining the original number.
Route
It starts on the A362 Warminster Road in Frome, climbing up Styles Hill and crossing the A361 without a junction (access is via the A362). It then crosses from Somerset into Wiltshire and passes through Chapmanslade before reachin the A36 at Black Dog Hill. The junction is grade separated, with the A36 using a new cutting down the hill, and I think it is also limited access. We then meet the B3099 at the eastern end of Dilton Marsh, before navigating our way through the new housing estates that surround Westbury. The new roads in this area are being built with the long-proposed Westbury bypass in mind, but whether they will ever be linked up is quite another matter.
