Saltash Tunnel Upgrade Project Update
Overhead lane signal testing continues
Safety testing is almost complete and very soon we’ll be switching on the new tidal flow lane control system at Saltash Tunnel and across the Tamar Bridge.
The overhead signals are now displaying the green arrows and red crosses to reflect the current traffic management. These will stay in place until the tidal flow control system goes live.
Once live, it will mean that we can once again change the direction of traffic via the overhead signals. We will let you know in advance what date the system will be going live.
Until then, please continue to stay in lane.Project overview
To keep drivers safe, we need specialised technology to operate:
- the tunnel
- its 'reversible' lane - which allows traffic to travel in either direction depending on the time of day or conditions
We're replacing the current tunnel control system, which is approaching the end of its life. The work includes:
- installing new LED lighting
- modernising power cables and equipment installed when the tunnel was constructed. This includes cabinets, ducts and covers to improve access in the future.
- installing new signs to advise drivers of current conditions
- replacing air quality monitors
- upgrading the tunnel ventilation system
- replacing the existing ‘wig-wag’ crossing with traffic lights that will stop traffic in emergencies and open the diversion route
National Highways South West are working with local partners and stakeholders to minimise disruption. This type of work can sometimes overrun. Please bear in mind the dates they give for the work can change.
The tunnel will be closed during the works every night in the week, Monday to Friday.