Heritage Open Day: Come and explore the bridge crossings of the River Ure at Ripon. Learn about the history from medieval times to the modern day. Explore the bridge crossings of the River Ure at and near Ripon’s historic North Bridge. The story spans not just the river but centuries of engineering know-how. We will look closely at the medieval stone North Bridge, find the site of the all-but-vanished Victorian railway bridge and venture under the modern and innovative Duchess of Kent Bridge carrying the A61.