21st April 2026
National Highways: A38 Saltash Tunnel update (16 April 2026)
Update: 16 April 2026Overhead lane signal testing continues
We’re continuing our installation of a new lane control system at Saltash Tunnel and across the Tamar Bridge.
Upgrading technology around an operational tunnel and bridge is complex work that must meet strict safety standards.
We’re continuing our rigorous safety testing of the new system to ensure it’s working as it should.
Next week, we’ll be testing the display symbols (red crosses, white arrows, and green arrows) on the new overhead lane signals.
Testing will take place overnight (7.30pm – 6am) on Monday 20 April and Tuesday 21 April.
At certain points during the testing, traffic might be held briefly at temporary traffic signals. This is for the safety of drivers to avoid confusion while the symbol testing is taking place.
