• Thumbnail for Lock (water navigation)
    A lock is a device used for raising and lowering boats, ships and other watercraft between stretches of water of different levels on river and canal waterways...
    49 KB (6,149 words) - 19:07, 16 May 2025
  • Thumbnail for Lee Navigation
    to the River Thames at Bow Creek; its first lock is Hertford Lock and its last Bow Locks. The Lee Navigation is named by acts of Parliament and is so marked...
    34 KB (2,578 words) - 00:40, 3 January 2025
  • items of importance Lock (water navigation), a device for boats to transit between different levels of water, as in a canal Lock (film), a 2016 Indian...
    4 KB (558 words) - 22:10, 22 May 2025
  • Thumbnail for Chelmer and Blackwater Navigation
    it included a clause that made the water companies responsible for the lock gates, because water from the navigation would be pumped to the reservoir,...
    31 KB (3,872 words) - 02:16, 30 March 2025
  • Thumbnail for Itchen Navigation
    locks. The lowest lock was at Woodmill, where the navigation joined the estuary of the River Itchen, on its way to Southampton Water. The main wharves...
    43 KB (5,903 words) - 01:06, 13 September 2024
  • Thumbnail for McClellan–Kerr Arkansas River Navigation System
    The McClellan–Kerr Arkansas River Navigation System (MKARNS) is part of the United States inland waterway system originating at the Tulsa Port of Catoosa...
    18 KB (1,386 words) - 17:14, 13 April 2025
  • Thumbnail for Louth Navigation
    to the shareholders in 1927. With the demise of navigation and the decay of the lock structures, water levels are considerably lower than they once were...
    31 KB (4,007 words) - 12:48, 3 October 2024
  • Thumbnail for Trap (plumbing)
    Drain-waste-vent system Garbage disposal unit Lock (water navigation) Sanitation Septic system Septic tank Tap water Water pipe Deziel, Chris (18 Feb 2013). "How...
    8 KB (1,046 words) - 10:05, 30 January 2025
  • the size or the draft of the ship being contemplated for navigation and the seasonal water level. On others, it is quite objective, being caused by a...
    2 KB (287 words) - 14:21, 15 May 2023
  • Thumbnail for Boyne Navigation
    Guard Lock,} Lock 9: Slane Castle Lock, Lock 10: Carrickdexter Lock, Lock 11: Cruicetown Lock, Lock 12: Castlefin Lock, Lock 13: Deer Park Lock, Lock 14:...
    22 KB (2,450 words) - 00:47, 18 January 2025
  • Thumbnail for Stort Navigation
    waterway. The final lock is Lower Lock, after which the navigation joins the Lee Navigation, just to the north of Feilde's Weir Lock. Wikimedia Commons...
    24 KB (3,024 words) - 19:42, 11 August 2024
  • Thumbnail for Mersey and Irwell Navigation
    the lock is gone. There were originally eight locks along the navigation. Each lock chamber was 13 feet wide by 65 feet long. Throstles Nest Lock was...
    12 KB (1,188 words) - 15:01, 22 March 2025
  • Thumbnail for River Great Ouse
    Level Navigations used to be possible via the Old Bedford River and Welches Dam lock, but the Environment Agency piled the entrance to the lock in 2006...
    42 KB (4,865 words) - 21:37, 13 May 2025
  • Thumbnail for Flash lock
    Weybridge on the Wey Navigation had an additional single gate some 100 yards (91 m) below the lock, which when closed raises the water level above it, allowing...
    9 KB (1,055 words) - 14:43, 27 February 2025
  • Thumbnail for Hertford Union Canal
    Navigation, in the parish of St. Mary Stratford Bow, in the county of Middlesex, to join the Regent's Canal at or near a Place called Old Ford Lock,...
    12 KB (1,291 words) - 19:24, 29 May 2025
  • Thumbnail for Forth and Clyde Canal
    Lower Lock. 35 36 – No. 36 Drop Lock – Dalmuir Drop Lock (constructed recently to take navigation below bridge) 37 – Old Kilpatrick 38 – Dalnottar Lock No...
    44 KB (2,926 words) - 03:43, 26 January 2025
  • Thumbnail for River Ouse, Sussex
    There is also a lock marked on the river, though this was presumably a flash lock. Smeaton's plan for a sluice and navigation lock at Piddinghoe had...
    66 KB (8,627 words) - 12:24, 5 May 2025
  • Thumbnail for Southcote Lock
    Southcote Lock is a lock on the Kennet Navigation at Southcote near the town of Reading in Berkshire, England. It has a rise/fall of 5 feet 3 inches (1...
    7 KB (598 words) - 22:44, 13 March 2025
  • Thumbnail for Aire and Calder Navigation
    Wakefield, by the construction of 16 locks. Lock sizes were increased several times, as was the depth of water, to enable larger boats to use the system...
    35 KB (4,390 words) - 14:37, 28 May 2025
  • Thumbnail for Airlock
    Airlock (redirect from Air-lock)
    changes in ambient pressure Mechanisms with similar functions: Lock (water navigation) – Uses water levels instead of air Mantrap (access control) Revolving...
    17 KB (1,730 words) - 08:45, 24 May 2025
  • Thumbnail for Okeechobee Waterway
    manage the water level in Lake Okeechobee. The Port Mayaca Lock and Dam was built in 1977 for navigation purposes, to permit the raising of water levels in...
    13 KB (933 words) - 17:17, 13 April 2025
  • Thumbnail for Teddington Lock
    has the lock keeper's cabin and the weir pool, Teddington Lock Footbridge. The Navigation Act obtained in April 1771 by the Thames Navigation Commission...
    23 KB (2,661 words) - 06:54, 20 May 2025
  • Thumbnail for Cookham Lock
    fees. The navigation route was formerly down Hedsor Water and the only weir was associated with the mill. After the building of Marlow Lock in 1773 there...
    9 KB (1,115 words) - 13:19, 8 June 2023
  • Thumbnail for Chicago Harbor Lock
    Waterway System, and is used to control water diversion from Lake Michigan into the river and for navigation. The lock was built between 1936 and 1938 by the...
    6 KB (500 words) - 22:09, 27 May 2025
  • Thumbnail for Driffield Navigation
    the Navigation due to draft limits. The initial locks were: Sheepwash Lock (now known as Town Lock) Whinhill Lock Wansford Lock Snakeholme Lock In 1776...
    20 KB (2,760 words) - 07:22, 16 September 2024
  • Thumbnail for Blyth Navigation
    Blythburgh until the 16th century, but navigation was increasingly affected by silting up of the channel. The volume of water which drained from the saltings...
    17 KB (1,866 words) - 16:21, 27 December 2024
  • Thumbnail for Mapledurham Lock
    first built in 1777 by the Thames Navigation Commissioners and the present lock dates from 1908. Despite its name, the lock is located in the Berkshire village...
    7 KB (787 words) - 14:36, 27 September 2023
  • Thumbnail for Bonneville Dam
    Gorge. The primary functions of Bonneville Lock and Dam are electrical power generation and river navigation. The dam was built and is managed by the United...
    21 KB (1,952 words) - 18:13, 3 January 2025
  • Thumbnail for Dam
    Dam (redirect from Dammed water)
    List of largest dams List of tallest dams List of tidal barrages Lock (water navigation) – Device for raising and lowering boats or ships Reservoir safety –...
    93 KB (11,165 words) - 18:35, 23 May 2025
  • Thumbnail for Locks and weirs on the River Thames
    by the London Stone. The principle of lock/weir combination, which maintained the depth of water for navigation and reduced the danger of flooding, was...
    19 KB (1,780 words) - 23:19, 4 May 2025