Cornwall's motorists will have 23 road closures to avoid nearby on the National Highways network this week.

And one of them is expected to cause delays of between 10 minutes and half an hour.

The latest expected works list, with notes from National Highways, shows that five closures already in place are expected to carry on this week:

• A30, from 8pm October 31 to 6am November 8, slight delays (under 10 minutes): A30 eastbound, Trebursye to Launceston convoy working for resurfacing.

• A30, from 7pm October 31 to 6am November 11, slight delays (under 10 minutes): A30 eastbound and westbound, Bodmin Bypass between Callywith and Four Winds lane closures for surveys, No access to/from Helland junction on the A30 westbound.

• A30, from 8pm July 4 2022 to 6am July 1 2023, slight delays (under 10 minutes): A30 eastbound, Zelah exit slip road closure for improvement scheme, diversion via Henver, junction .

• A30, from midnight, September 1 2020 to midnight, December 1 2023, slight delays (under 10 minutes): A30 Carland Cross to Chiverton Cross improvement scheme.

• A30, from 8pm June 30 2021 to 6am December 1 2023, slight delays (under 10 minutes): A30 Zelah narrow lanes and 50 mph speed limit for Chiverton to Carland improvement scheme.

And a further 18 closures will begin over the next seven days:

• A30, from 7am November 7 to 6pm November 10, slight delays (under 10 minutes): A30 eastbound and westbound, Bodmin Bypass between Callywith and Four Winds lane closures for surveys.

• A30, from 7pm November 7 to 6am November 12, moderate delays (10-30 minutes): A30 both directions Chiverton Cross to Carland Cross carriageway closures for routine maintenance. , westbound, diversion via A3058 from Summercourt, A392 and A3075, reverse for eastbound.

• A30, from 8pm November 7 to 4am November 8, slight delays (under 10 minutes): A30 eastbound, Mitchell lane closure for barrier repairs.

• A38, from 8pm November 7 to 6am November 8, slight delays (under 10 minutes): A38 Both Directions Landrake Convoy Working for Road Marking.

• A30, from 8pm November 7 to 6am November 8, slight delays (under 10 minutes): A30 eastbound, Launceston, Tavistock Road exit slip road closure for resurfacing, diversion via Pennygillam junction.

• A30, from 8pm November 8 to 6am November 12, slight delays (under 10 minutes): A30 eastbound, Pennygillam junction, Launceston to Liftondown carriageway closures for resurfacing, diversion via Link Road, Hurdon Road and A388.

• A30, from 8pm November 11 to 4am November 12, slight delays (under 10 minutes): A30 St Erth traffic signals for carriageway repairs.

• A38, from 9.30am to 3.30pm on November 14, slight delays (under 10 minutes): A38 eastbound, Dobwalls to Trerulefoot mobile lane closures for safety barrier inspections.

• A30, from 7pm November 14 to 6am November 15, slight delays (under 10 minutes): A30 Both Directions Temple Tor to Bolventor lane closures and gap closure at Warleggan River for barrier repair, diversion to next, junction and return.

• A30, from 7pm November 14 to 5am November 16, slight delays (under 10 minutes): A30 St. Erth to Newtown traffic lights installed by Openreach for cabling works.

• A30, from 7pm November 14 to 6am November 15, slight delays (under 10 minutes): A30 eastbound, Innis Downs to Carminow Cross lane closure for statutory undertaker works.

• A30, from 8pm November 14 to 6am November 26, slight delays (under 10 minutes): A30 eastbound, Tavistock Road junction, Launceston to Liftondown carriageway closures for resurfacing, diversion via A388.

• A38, from 8pm November 14 to 6am December 2, slight delays (under 10 minutes): A38 Both Directions Trerulefoot to Carkeel convoy working for road marking.

• A38, from 8.30pm November 14 to 6am November 19, slight delays (under 10 minutes): A38 both directions Dobwalls to Turfdown, near Bodmin, closed for routine maintenance, diversion via A390, B3269, B3268 and Turfdown Road.

• A30, from 7pm November 15 to 6am November 16, slight delays (under 10 minutes): A30 eastbound, Innis Downs to Carminow Cross lane closure for statutory undertaker works.

• A30, from 8pm November 17 to 6am November 19, slight delays (under 10 minutes): A30 both directions Highgate Hill to Victoria lane closures for safety barrier repairs.

• A30, from 8pm November 17 to 4am November 18, slight delays (under 10 minutes): A30 westbound, Pennygillam lane closure for carriageway resurfacing works.

• A30, from 8pm November 21 to 6am November 22, slight delays (under 10 minutes): A30 eastbound, Chy-an-Mor to Newtown carriageway closure for resurfacing, diversion via Longrock Road.

National Highways is responsible for maintaining motorways and major A-roads, so closures of smaller roads will not be included in their schedule.