[{SlideShowNav}] !!!Iron Bridge [{Image src='1620uk.jpg' width='650' height='487' alt='Iron Bridge' class='image_left' popup='false'}] [{SET customtitle='Iron Bridge'}] \\ Iron Bridge spans the Severn River near the town of Ironbridge, England; it was the first arch bridge made of cast iron. Constructed in 1779, the bridge opened in 1781; vehicular traffic was barred from it in 1934.