National Highways is advising drivers travelling in Cornwall to plan ahead and allow extra time for their journeys ahead of a weekend closure of the A30 later this month.

As part of the company’s A30 Chiverton to Carland Cross upgrade, and following a weekend closure earlier this month to switch traffic at the Marazanvose ‘green bridge’ location, the road will be closed between Boxheater and Scorrier from Friday 17 November to Monday 20 November.

The closure is required to carry out carriageway realignment around Tolgroggan, earthworks near Marazanvose and drainage work at the Chiverton end of the scheme. Lead contractors Costain will also be continuing preparatory work at Chiverton, ahead of the installation of a multi-use bridge as part of Cornwall Council’s Saints Trails cycling/walking initiative

During the weekend closure, from 8pm on the Friday to 6am on the Monday, westbound traffic will be diverted from Boxheater on the A30 via the B3285 and the A3075 to rejoin the A30 at Scorrier, with the eastbound diversion route in reverse.

Due to a low bridge (4.7 metres) at Scorrier, HGVs will be diverted via the A393 and A39 to rejoin the A30 at Carland.

Falmouth Packet: The diversion route in operation for the 17-20 November weekend closureThe diversion route in operation for the 17-20 November weekend closure (Image: National Highways)

Neil Winter, Senior Project Manager for National Highways’ A30 Chiverton to Carland Cross scheme, said: “We appreciate the closure will have an effect on journey times, and we understand roadworks can be frustrating, but we are carrying out this essential work over one weekend to minimise disruption.

“We thank drivers for their patience ahead of the weekend closure and once completed, drivers won’t see any difference to their journeys through the scheme.

“We’ve communicated the closure in advance to local communities and businesses and once we finalise plans for further closures next month we’ll provide further updates as we progress this massive road upgrade for Cornwall.”

Following the weekend closure, the road could be reopened earlier than the 6am deadline on Monday, and in the meantime, drivers can obtain up-to-the-minute travel information via roadside messaging, local radio, the @HighwaysSWEST Twitter feed, by phoning the National Highways Information Line on 0300 123 5000 or by accessing the website:

The new carriageway is scheduled to be opened at the end of winter 2023/2024 and in the meantime more information and further scheme updates are available at National Highways’ A30 Chiverton to Carland Cross web page .

The cost of developing the scheme is being partly funded by an £8 million contribution from the European Regional Development Fund, with an additional £12 million for the construction phase. The remainder of the cost of developing and delivering the scheme is being funded by central Government.