The B5305 is blocked in both directions at Sebergham, Cumbria, as a lorry has jacknifed on Sebergham Bridge.
Delays between Wigton and Penrith can be expected and police say the road will not be clear until at least 10am.
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Sunshine and showers on Saturday, occasionally heavy with thunder. Better day Sunday
The population of the bird in the south of Scotland has fallen dramatically in the past decade, due to overgrazing and habitat loss.
Vigils have been held in the region to mark the 100th anniversary of the battle of the Somme.