Front Street (A689)
The A689 tracking the floor of Weardale from Stanhope is a prime example of a sweeping, open primary route. Spanning twenty miles, it is the widest and smoothest road on this list. While it lacks the sheer cornering challenge of the high passes, it makes up for it with outstanding visibility and a wonderfully relaxed, loping cadence.
The road naturally widens around the quarries, but be mindful of the heavy goods vehicles pulling out onto the main carriageway.