From Roader's Digest: The SABRE Wiki
|From:||Exeter Street (SX485546)|
|To:||Union Street (SX473544)|
|Length:||1 miles (1.6 km)|
|Route outline (key)|
From east to west the B3240 leaves the A374 at Bretonside with a limited traffic light junction (westbound A374 to westbound B3240 and eastbound B3240 to eastbound A374). The road is S2 throughout and runs through some of the more historical areas of the city, skirting the southern edge of the city centre and providing access to the bus station, Barbican, Hoe and ferryport (which is served by a short spur) by way of several light controlled and T junctions. The B3240 meets the A374 again at the west end at a curiously built junction that is half roundabout and half crossroad, but does not provide for all turns.
The B3240 is described in the 1922 Road Lists as Plymouth (Vauxhall Street to Barbican) and maps suggest that it started on the A38 and continued south along Vauxhall Street and Southside Street to end in the Barbican area.
Shortly afterwards the road gained a spur heading west along the current line of Notte Street, to join the A38 again further west. Plymouth was extensively redeveloped following World War II and the original street plan largely obliterated so following the road on the ground is largely impossible. However, given that the 1920s route connected the A38 with itself the new route was planned to do so as well.
The original mainline, later the spur to the Barbican, is still marked as a B-road in the 1970s but is now unclassified.