[1] The flight spans less than 2 miles (3.2 km) of canal,[2] and has a total rise of 45 metres (148 ft).
[3] The flight was opened in December 1799 on the Warwick and Birmingham Canal.
In order to accommodate traders with heavy cargos of coal, sugar, tea and spices up the flight, the locks were widened to 14 feet (4.3 m) – allowing navigation by industrial boats or two single narrowboats.
[1] The widening was completed in the mid-1930s using a workforce of 1,000, and the revolutionary concrete lock system was opened by Prince George, Duke of Kent.
[1] The flight was known as the "stairway to heaven" due to the difficulty of the flight and the subsequent easier journey to Camp Hill where the workmen would receive their wages.