The A66 east of Penrith, near Center Parcs, is currently closed while rescue and recovery work takes place following a crash.
Cumbria Police say diversions are in place. Motorists can use the A65 and A69, the A685 can be used at Brough to join the M6 for westbound traffic but height and weight restrictions apply to the route.
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Calmer conditions - for now.
The 12.5 hour walkout by 63 GMB members got under way at 6am this morning and will continue until 6.30pm this evening.
37-year-old Graeme Haddon pleaded guilty to the offence which happened in his home village of Lamancha near West Linton at the weekend.