In terms of preserving important historic landmarks, the task of protecting the Royal Albert Bridge spanning the River Tamar in England presented a number of challenges, not least the number of rivets, back-to-back angles and the chains.
Designed by Brunel and completed in 1859, the bridge provides the only rail connection between Cornwall and the rest of England. Opened by His Royal Highness Prince Albert, this industrial-looking structure with spindly piers and beefy tubular arches retains a period elegance and appeal, while still providing the route for modern rail transport.