during the late 1960s, the kirkfield lift lock underwent a series of renovations. the original manual controls were electrified and automated, enabling all lock operations to be activated from a single console in the new control tower. the water-driven gate engines and pumps were removed, as well as the retaining walls, concrete piers, and the steel aqueduct. the shops and lockmaster's houses built along the canal were also demolished. the lock was reinforced with a massive concrete structure; a new two-lane underpass was constructed underneath.