Marsworth Lock No 3
Watery Lane, Marsworth HP23 4LY, United Kingdom

Marsworth Lock No 3
is a minor waterways place
on the Grand Union Canal (Grand Junction Canal - Aylesbury Arm) between
Marsworth Junction (Junction of Grand Union Aylesbury Arm with Main Line) (1¼ furlongs
and 2 locks
to the east) and
Aylesbury Basin Visitor Moorings (5 miles and 7½ furlongs
and 13 locks
to the west).
The nearest place in the direction of Marsworth Junction is Watery Lane Bridge No 1;
½ furlongs
away.
The nearest place in the direction of Aylesbury Basin Visitor Moorings is Black Jack's Lock No 4;
¾ furlongs
away.
Mooring here is unrated.
This is a lock, the rise of which is not known.
| Marsworth Junction | 1¼ furlongs | |
| Marsworth Narrow Locks (Staircase Lock Nos 1 and 2) | ¾ furlongs | |
| Watery Lane Bridge No 1 | ½ furlongs | |
| Marsworth Lock No 3 | ||
| Black Jack's Lock No 4 | ¾ furlongs | |
| Marsworth Lock No 5 | 2 furlongs | |
| Dixons Gap Lock No 6 | 3¼ furlongs | |
| Wingrave Road Bridge No 2 | 3¼ furlongs | |
| Aylesbury Arm Lock No 7 | 4½ furlongs | |
- Grand Union Canal Walk — associated with Grand Union Canal
- An illustrated walk along the Grand Union Canal from London to Birmingham
- THE GRAND JUNCTION CANAL - a highway laid with water. — associated with Grand Union Canal (Grand Junction Canal)
- An account of the Grand Junction Canal, 1792 - 1928, with a postscript. By Ian Petticrew and Wendy Austin.
Mouseover for more information or show routes to facility
Nearest water point
In the direction of Aylesbury Basin Visitor Moorings
Aylesbury Circus Field Basin — 5 miles and 12 locks away
On this waterway in the direction of Aylesbury Basin Visitor Moorings
Aylesbury Basin Visitor Moorings — 5 miles, 7½ furlongs and 14 locks away
On this waterway in the direction of Aylesbury Basin Visitor Moorings
In the direction of Marsworth Junction
Marsworth Services — 1¾ furlongs and 3 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Marsworth Services
Winding Hole near Bulbourne Bridge — 1 mile, 3½ furlongs and 10 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Winding Hole near Bulbourne Bridge
Cowroast Lock No 46 — 4 miles, 1¾ furlongs and 10 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Cowroast Lock No 46
Slapton Wharf — 4 miles, 4 furlongs and 11 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Slapton Wharf
Leighton Linslade Services — 8 miles, 1¾ furlongs and 14 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Leighton Linslade Services
Rothschild Road Wharf — 8 miles, 6½ furlongs and 14 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Rothschild Road Wharf
Berkhamsted Services — 6 miles, 6¾ furlongs and 17 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Berkhamsted Services
Bank Mill Service Station — 7 miles, 5 furlongs and 20 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Bank Mill Service Station
Soulbury Bottom Lock No 24 — 12 miles, 2¼ furlongs and 17 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Soulbury Bottom Lock No 24
Willowbridge Marina — 14 miles, 4½ furlongs and 19 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Willowbridge Marina
Middlesex & Herts Boat Services Wharf — 9 miles, 4¾ furlongs and 25 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Middlesex & Herts Boat Services Wharf
Fenny Stratford Services — 16 miles, 3 furlongs and 19 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Fenny Stratford Services
Peartree Bridge No 88 — 18 miles, 4½ furlongs and 20 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Peartree Bridge No 88
Apsley Services — 11 miles, 7¾ furlongs and 30 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Apsley Services
Nash Mill Top Lock No 68 — 12 miles, 5 furlongs and 32 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Nash Mill Top Lock No 68
Cassiobridge Water Point — 18 miles, 1 furlong and 43 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Cassiobridge Water Point
Bridgewater Basin — 18 miles, 2 furlongs and 44 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Bridgewater BasinNearest rubbish disposal
In the direction of Aylesbury Basin Visitor Moorings
Aylesbury Basin Visitor Moorings — 5 miles, 7½ furlongs and 14 locks away
On this waterway in the direction of Aylesbury Basin Visitor Moorings
In the direction of Marsworth Junction
Marsworth Services — 1¾ furlongs and 3 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Marsworth Services
Town Field Farm Bridge No 130 — 3½ furlongs and 3 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Town Field Farm Bridge No 130
Cowroast Marina — 4 miles, 1 furlong and 10 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Cowroast Marina
Cowroast Lock No 46 — 4 miles, 1¾ furlongs and 10 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Cowroast Lock No 46
Leighton Rubbish Disposal — 8 miles, 1½ furlongs and 14 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Leighton Rubbish Disposal
Berkhamsted Services — 6 miles, 6¾ furlongs and 17 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Berkhamsted Services
Soulbury Middle Lock No 25 — 12 miles, 1¾ furlongs and 16 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Soulbury Middle Lock No 25
Fenny Stratford Services — 16 miles, 3 furlongs and 19 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Fenny Stratford Services
Fisheries Lock No 63 — 10 miles, 5 furlongs and 27 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Fisheries Lock No 63
Apsley Services — 11 miles, 7¾ furlongs and 30 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Apsley Services
Apsley Marina — 12 miles, 2 furlongs and 32 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Apsley MarinaNearest chemical toilet disposal
In the direction of Aylesbury Basin Visitor Moorings
Aylesbury Basin Visitor Moorings — 5 miles, 7½ furlongs and 14 locks away
On this waterway in the direction of Aylesbury Basin Visitor Moorings
In the direction of Marsworth Junction
Marsworth Services — 1¾ furlongs and 3 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Marsworth Services
Cowroast Marina — 4 miles, 1 furlong and 10 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Cowroast Marina
Cowroast Lock No 46 — 4 miles, 1¾ furlongs and 10 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Cowroast Lock No 46
Leighton Linslade Services — 8 miles, 1¾ furlongs and 14 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Leighton Linslade Services
Fenny Stratford Services — 16 miles, 3 furlongs and 19 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Fenny Stratford Services
Apsley Services — 11 miles, 7¾ furlongs and 30 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Apsley Services
Apsley Marina — 12 miles, 2 furlongs and 32 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Apsley MarinaNearest place to turn
In the direction of Aylesbury Basin Visitor Moorings
College Road Winding Hole — 2 miles, 7 furlongs and 11 locks away
On this waterway in the direction of Aylesbury Basin Visitor Moorings
Aylesbury Basin — 5 miles, 7¼ furlongs and 14 locks away
On this waterway in the direction of Aylesbury Basin Visitor Moorings
Aylesbury Basin Visitor Moorings — 5 miles, 7½ furlongs and 14 locks away
On this waterway in the direction of Aylesbury Basin Visitor Moorings
In the direction of Marsworth Junction
Marsworth Junction — 1¼ furlongs and 3 locks away
On this waterway in the direction of Marsworth Junction
Bulbourne Junction — 1 mile, ½ furlongs and 10 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Bulbourne Junction
Winding Hole near Bulbourne Bridge — 1 mile, 3½ furlongs and 10 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Winding Hole near Bulbourne Bridge
Gammel Bridge Winding Hole — 1 mile, 7 furlongs and 10 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Bulbourne Junction, then on the Grand Union Canal (Grand Junction Canal - Wendover Arm - restored section) to Gammel Bridge Winding Hole
Little Tring Winding Hole — 2 miles, 3½ furlongs and 10 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Bulbourne Junction, then on the Grand Union Canal (Grand Junction Canal - Wendover Arm - restored section) to Little Tring Winding Hole
Station Road Bridge Winding Hole — 2 miles, 7 furlongs and 10 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Station Road Bridge Winding Hole
Saxon Way Winding Hole — 4 miles, 1¼ furlongs and 10 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Bulbourne Junction, then on the Grand Union Canal (Grand Junction Canal - Wendover Arm - restored section) to Little Tring Winding Hole, then on the Grand Union Canal (Grand Junction Canal - Wendover Arm - unrestored section) to Saxon Way Winding Hole
Cowroast Winding Hole — 4 miles, 1¼ furlongs and 10 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Cowroast Winding Hole
Slapton Winding Hole — 4 miles, 3¾ furlongs and 11 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Slapton Winding Hole
Grove Lock Marina — 6 miles, 6½ furlongs and 13 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Grove Lock Marina
Grove Lock Arm — 6 miles, 7¼ furlongs and 14 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Grove Lock Arm
Leighton Buzzard Bridge Winding Hole — 8 miles, 1¾ furlongs and 14 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Leighton Buzzard Bridge Winding Hole
Bossington Lane Winding Hole — 8 miles, 5¾ furlongs and 14 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Bossington Lane Winding Hole
Rothschild Road Wharf — 8 miles, 6½ furlongs and 14 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Rothschild Road Wharf
Old Linslade Winding Hole — 10 miles, 4¾ furlongs and 15 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Old Linslade Winding Hole
Bullbeggers Lane Winding Hole — 8 miles, ¾ furlongs and 21 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Bullbeggers Lane Winding Hole
Winding Hole below Stoke Hammond Lock — 13 miles, 5 furlongs and 19 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Winding Hole below Stoke Hammond LockNearest self-operated pump-out
In the direction of Marsworth Junction
Marsworth Services — 1¾ furlongs and 3 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Marsworth Services
Cowroast Marina — 4 miles, 1 furlong and 10 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Cowroast Marina
Willowbridge Marina — 14 miles, 4½ furlongs and 19 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Willowbridge Marina
Middlesex & Herts Boat Services Wharf — 9 miles, 4¾ furlongs and 25 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Middlesex & Herts Boat Services Wharf
Apsley Marina — 12 miles, 2 furlongs and 32 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Apsley MarinaNearest boatyard pump-out
In the direction of Marsworth Junction
Cheddington Wharf — 1 mile, 5 furlongs and 5 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Cheddington Wharf
Grove Lock Marina — 6 miles, 6½ furlongs and 13 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Grove Lock Marina
Rothschild Road Wharf — 8 miles, 6½ furlongs and 14 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Rothschild Road Wharf
Middlesex & Herts Boat Services Wharf — 9 miles, 4¾ furlongs and 25 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Middlesex & Herts Boat Services Wharf
Milton Keynes Marina — 18 miles, 3¾ furlongs and 20 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Milton Keynes Marina
Campbell Wharf Marina — 19 miles, 6 furlongs and 20 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Campbell Wharf Marina
Bridgewater Basin — 18 miles, 2 furlongs and 44 locks away
Travel to Marsworth Junction, then on the Grand Union Canal (Grand Junction Canal - Main Line - Gayton to Brentford) to Bridgewater BasinDirection of TV transmitter (From Wolfbane Cybernetic)
There is no page on Wikipedia called “Marsworth Lock”
Wikipedia pages that might relate to Marsworth Lock
[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
[Marsworth]
For the nearby reservoir, see Marsworth reservoir Marsworth is a village and a civil parish within the unitary authority area of Buckinghamshire, England
[Grand Union Canal]
where lock gates were manufactured until 2003 for the southern canal network. Half a mile (800 m) further on, the canal reaches the top of the Marsworth flight
[Halton, Buckinghamshire]
through Halton on its course from Wendover to join the Grand Union beside Marsworth lock near Tring. Halton gave its name to the Handley Page Halton, a cargo
[Aylesbury Canal Society]
between Marsworth Junction and Aylesbury via 16 locks: Marsworth No.1 & 2 Locks (staircase) Marsworth No.3 Lock Marsworth No.4 Black Jacks Lock Lock Nos.5
[List of locks on the Grand Union Canal]
north, to Lock 64, and the south, to Lock 101. The Paddington Arm and the Slough Arm have no locks. The Wendover Arm Canal has one stop lock. The Aylesbury
[List of poor law unions in England]
Turville, Wingrave, Whitchurch, Woodham, Wotton Underwood. Berkhampstead PLU Marsworth, Nettleden, Pitstone (1835–1923). Remainder of PLU in Hertfordshire. Bicester
[Grand Junction Canal]
Locks No 37-38 Aylesbury Arm | Marsworth Junction Marsworth Locks No 39-45 Bulbourne Junction Wendover Arm Cowroast Lock No 46 Dudswell Locks No 47-48
[Caldwell Priory]
Clapham – belonged to Caldwell at the beginning of the thirteenth century; Marsworth and Broughton in Buckinghamshire, and Arnesby in Leicestershire before
[Wendover]
which joins Tring summit level of the Grand Union main line beside Marsworth top lock. Disused for over a century, the arm is in the course of[when?] being
Results of Google Search
Aylesbury Canal Society - WikipediaMarsworth No.1 & 2 Locks (staircase); Marsworth No.3 Lock; Marsworth No.4 Black Jacks Lock; Lock Nos.5, 6 & 7; No.8 Jefferies Lock; No.9 Wilstone ( Gudgeon ...
M. ▻ Marsworth Locks#x200e; (3 F) ... Aylesbury Arm of the Grand Union Canal - Lock No 1 - geograph.org.uk - 1228443.jpg 640 × 480; 106 KB. Aylesbury Arm ...
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Locks 2 and 3. SP5465 : Braunston Lock No 2, ... Bridge No 132. SP9114 : Grand Union Canal: Marsworth Flight: Lock No 39 by Chris Reynolds Lock No 39.
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The Aylesbury Canal Arm leaves from Marsworth Junction via a staircase lock, a walk to Aylesbury in Bucks ... Marsworth No.3 Lock, The Aylesbury Canal Arm.

![Aylesbury Arm – Marsworth Lock (No 3). This is a typical lock of the type that occurs on the Aylesbury Arm [[1228440]]. There is a single top gate, with the sluice in the side of the lock, and a pair of bottom gates with sluices in each. There is a safety ladder (modern) to allow one to climb out of the lock if one falls in when the lock is empty and the gates closed. Mooring points are provided in the lock and on the bank of the canal before and after the lock.The Canal Cottage associated with Lock No 4 can be seen in the distance.[[1228440]].Exit to the West: [[1228949]].To the East [[1228457]]. by Chris Reynolds – 05 March 2009](https://s0.geograph.org.uk/geophotos/01/22/88/1228864_adf0249d_120x120.jpg)

![Aylesbury Arm from Watery Lane, Marsworth. Watery Lane in Marsworth crosses two canals in quick succession. If coming from Startop's End this, the Aylesbury Arm of the Grand Union is the first encountered. (The second bridge is over the main line of the G.U.C. and can be seen in [[[325918]]])The Aylesbury Arm has only just departed from the main line at this point, this bridge being the first on the arm. The view seen here is looking roughly westwards in the Aylesbury direction. The first two locks on the arm can be seen, with a lockkeepers cottage next to the further one. by Rob Farrow – 31 January 2007](https://s0.geograph.org.uk/photos/32/59/325916_2383c273_120x120.jpg)

![Aylesbury Arm – Towpath beyond Lock No 3. See [[1228440]] by Chris Reynolds – 05 March 2009](https://s2.geograph.org.uk/geophotos/01/22/88/1228878_5c4550a9_120x120.jpg)

![Aylesbury Arm - Looking towards Lock No 3 from Bridge No 1. Note the mooring points so that narrowboats can tie up while waiting for the locks to become free. Bridge No 1 is in Buckinghamshire – but Lock No 3 and the next mile of the Aylesbury Arm [[1228440]] is in Hertfordshire. by Chris Reynolds – 05 March 2009](https://s3.geograph.org.uk/geophotos/01/22/84/1228459_622a7b12_120x120.jpg)





![Grand Union Canal: Aylesbury Arm: Bridge No 1. The bridge is just down the arm from [[4161137]] the end of which can just be seen through the arch. The bridge takes Watery Lane over the canal. It dates from around 1811 to 1814 when the canal was built and is a Grade II Listed structure. by Nigel Cox – 04 September 2014](https://s1.geograph.org.uk/geophotos/04/16/11/4161157_0d8e7e10_120x120.jpg)


![Aylesbury Arm - Bridge No 1 from Lock No 2. This hump-backed bridge is the first one of many on the Aylesbury Arm. It carries Watery Lane over the canal. Watery Lane runs from Startops End to Marsworth Church [[1198515]].[[1228440]].Exit to the West: [[1228864]].To the East [[1228455]]. by Chris Reynolds – 05 March 2009](https://s1.geograph.org.uk/geophotos/01/22/84/1228457_ab9db6e5_120x120.jpg)







![Aylesbury Arm - Looking into Lock No 2 from Lock No 1. Lock No1 and Lock No 2 of the Aylesbury Arm [[1228440]] form a staircase pair – where the bottom gate of Lock No 1 is the top gate of Lock No 2. This is the only such pair on the southern part of the Grand Union Canal.The Bridge (No 1) carries Watery Lane over the canal. by Chris Reynolds – 05 March 2009](https://s1.geograph.org.uk/geophotos/01/22/84/1228453_0a310290_120x120.jpg)




![Aylesbury Arm – Marsworth Lock (No 3) looking towards Bridge No 1. This is a typical lock of the type that occurs on the Aylesbury Arm [[1228440]]. There is a single top gate, with the sluice in the side of the lock, and a pair of bottom gates with sluices in each. There is a safety ladder (modern) to allow one to climb out of the lock if one falls in when the lock is empty and the gates closed. Mooring points are provided in the lock and on the bank of the canal before and after the lock. by Chris Reynolds – 05 March 2009](https://s2.geograph.org.uk/geophotos/01/22/88/1228874_49e6bd69_120x120.jpg)
![Aylesbury Arm - Lock No 2 showing the Lock Gates of Lock No 1. This shows how the pair of locks work, with Lock No 1 opening directly onto Lock No 2. Pairs of locks such as this are used when the land is dropping quickly, in this case into the Vale of Aylesbury.The photograph is taken from Bridge No 1.[[1228440]].Exit to the West: [[1228457]].To the East [[1228443]]. by Chris Reynolds – 05 March 2009](https://s3.geograph.org.uk/geophotos/01/22/84/1228455_6d721548_120x120.jpg)