This lock, of the single-chamber type, was incorporated during the restoration of the canal, to allow the replacement of a swing bridge (on a busy A road) by a fixed bridge, and so answer criticisms that the restoration of the canal would cause …

Canal locks change the water level in the canal so boats can go up and down hills. A lock is a stretch of canal that is blocked off at each end by solid gates. These gates are opened or closed to allow water to fill or drain from the lock. When a boat enters a lock, the gates close behind it.

Oct 19, 2023 · Locks are watertight chambers built on canals to help raise and lower ships in areas where the canal bed is not uniform. A ship’s motion through locks is similar to ascending and descending staircases.

Explore text listings of canal structures such as locks, lift bridges, and guard gates, as well as launch locations, canal amenities and attractions, and speed limits along the canal.

Tuel Lane Lock is a canal lock, situated on the Rochdale Canal in Sowerby Bridge, England. It was built in 1996 as part of the canal's restoration, and replaces two previous locks, locks 3 and 4, from the original canal system.

Early canal engineers soon came up with the solution of turnover, or snake, bridges. The smooth lines of these bridges make them among the most attractive waterway structures. At the tail of many locks, small bridges were provided to avoid the need to …

Change Bridges: One particular type of bridge occurs on towpath canals. Where a canal crosses from one side of a river to the other, either on an aqueduct or in slack water while paralleling it above and below, it is necessary to change the towpath from one side of the boat to the other.

Jul 3, 2023 · Canal locks are an essential component of canal systems, allowing boats to travel up and down waterways with varying water levels. A lock is a watertight chamber that can be filled or emptied to raise or lower boats to the level of the water on the other side of a dam or other barrier.

Mar 30, 2025 · Canal water doesn't flow much — it's a closed system in many places. I'd heard that, in principle, it only takes one lock's worth of water for a boat to travel down a whole flight of locks: each lockful of water carries the boat one step down and ends up in the next pound.

Dec 23, 2024 · Canal locks and lifts appear all along waterways, helping boats to climb hills. They come in many varieties but our handy guide can help you tell them apart. The introduction of locks in the 10th century made it possible for boats to climb the highest hills and mountains.