WITH the failure of balance beams, there is a rudimentary testing of balance beams (and lock gates) in a simple process that I suspect most boaters do subconsciously when they operate the lock, writes Ralph Freeman, and suggests:
The first test is a visual inspection for any sign of rotting particularly where there is any joint or hole in the woodwork for ironwork. That's where the water enters the wood in the first place.
Boater test
The second test is the boater test. Before the lock is full or empty, just place your backside on the balance beams and give a little push. If the balance beam/gate is sound there will be no movement at all, the beam will feel rock solid.
However, if the beam moves and feels 'springy' then either the gate and/or balance beam is on it's way out and needs a more thorough check.
I've come across many gates of late that a sixty years old like myself can 'bend'. That just can't be right can it?
Spare backsides?
Note, no technology or a degree in engineering is required to suss when a gate or beam is rotten just a simple push with a backside will tell what you need to know. I suspect there are plenty of spare backsides at CaRT just sat behind desks filling out forms, so Richard how about sending 'em out to do something useful for a change?