Locks

 

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Locking through Locks

As a canal or navigatable river crosses rising or falling terrain some mechanism must exist to lift or lower the canal boat.  The most common method to lower or raise a canal boat as the terrain elevation changes is via a lock.  On our June 1999 trip the narrowboat Douglas went through a total of 93 locks.  On a later trip the Silver Spirit worked through 131 locks on the Avon Ring.  (We never did count the number of locks worked on our 2001 trip.)
 

approach_lock.jpg (13011 bytes)

Approaching lock from upper pool typically goes from nice and wide to very narrow with only and inch or two clearance on each side to the narrowboat whilst in the lock! (1999)

lower_boat_lock.jpg (13168 bytes)

Lower narrowboat in lock can be quite interesting if both lock paddles are quickly and fully opened at the same time - it causes a water surge rolling the narrowboat quickly forward. (1999)

leak_lock.jpg (14350 bytes)

Leaks in lock!  Leaks from the upper gate are common.  Not common, but occurring are leaks from the lock sidewall masonry - when this happens batten-down the hatches, close the windows and the doors! (1999)

bunbury_staircase.jpg (55944 bytes) The narrowboat Silver Vale at 65 feet length is a tight fit in locks and shown here shares a double-wide lock at the Bunbury double staircase.  Cindy in background chats with the lock master. (6/27/2001)
red_bull.jpg (44390 bytes) At the Red Bull lock #42 on the Trent & Mersey Canal Silver Vale crosses under the the Pool Lock Aqueduct carrying the Macclesfield Canal over the Trent & Mersey.  (7/2/2001)
red_bull_lunch.jpg (48931 bytes) Red Bull Lock #41 is like many locks along the UK canals where a "pub" is conveniently located nearby to address the food and thirst needs of the narrowboat crews. (7/2/2001).
harding_junction.jpg (54506 bytes) South of Red Bull Lock #41 is the junction of the Trent & Mersey and Macclesfield Canals.  On this day we continue southeast on the T&M and enter the Harecastle Tunnel just a short distance away.  (7/2/2001)
ackerman_lock.jpg (90809 bytes) The Robert Aickman Lock just north of Evesham on the river Avon is typical of the locks on the Avon and Severn - quite wide in comparison with the typical narrow canal lock. Of note in a flood a few years ago, the river water was as high as the cross walk shown in this picture. (6/8/05)
severn_worc_junction.jpg (75543 bytes) The River Severn side view of one of the two Diglis Locks that allows ascent onto the Worcester & Birmingham Canal.  On the Silver Spirit we wait our turn to join a narrowboat already entering the double-wide lock. (6/9/05)
tardebigge_lock54.jpg (98251 bytes) The Tardebigge flight of 30 locks in the space of less than 3 miles makes this section of the Worcester & Birmingham Canal quite famous amongst the UK canals and completing these locks is a narrowboat person's "Rite of Passage". 

Silver Spirit entered the Tardebigge Bottom Lock (#29) at 9:10 AM and exited the Top Lock (#58) at 12:55! Shown upper left the Silver Spirit passes under bridge 54 and enters into lock 50.  One crew member is already at the next lock in the flight readying it for Silver Spirit's entry.  This method of readying the lock ahead greatly speeds up passage.

Tardebigge Top Lock is one of the deepest locks at 14ft deep (middle-left) and Cindy smiles a sign of relief (lower-left) as we finish the flight and what will be the last lock on our Avon Ring travel for a few days.  (6/12/05)

tardebigge_lock58.jpg (73583 bytes)
tardebigge_top_lock.jpg (94176 bytes)