We did get a chance to voyage over Telford Bridge a couple of years ago. I was invited to perch topside as we crossed and it was, indeed, a long way down.
Here's another canal song which probably has never been sung. It's of World War 1 vintage composed by C. Fox Smith and commemorates the canal boatmen doing their bit:
The Jolly Bargeman
I've put the old mare's tail in plaits — now ain't she lookin' gay, With ribbons in 'er mane likewise, you'd think it First o' May; For why? We're under Government, though it ain't quite plain to me If we're in the Civil Service or the Admiralties!
An' it's "Gee hup, Mabel," an' we'll do the best we're able, For the country's took us over an' we're 'elpin' 'er to win, An' when the war is over, oh, we'll all lie down in clover, With a drink all together at the Navigation Inn!
I brought the news to Missis, an' to 'er these words did say: "Just chuck yon old broom-'andle an' a two-three nails this way: We're bound to 'ave a flag-staff for our old red, white an' blue, For now we're under Government we'll 'ave our ensign too."
The Navy is the Navy, an' it sails upon the sea, The Army is the Army, an' on land it 'as to be; There's the land an' there's the water, an' the Cut comes in between, An' I don't know what they'll call me if it ain't an 'Orse Marine.
The Missis sits upon the barge, the same's she used to sit, But they'll 'ave 'er in the papers now for Doin' 'er Bit: An' I walk upon the tow-path 'ere as proud as anything, If I 'aven't got no uniform, I'm serving of the King.
An' it's "Gee hup, Mabel," oh, we'll do the best we're able, For the country's been an' called us, an' we've got to 'elp to win; An' when this war is over, then we'll all lie down in clover, With a drink all together at the Navigation Inn!
Captures a moment in World War 1 when the British Government has issued an order mobilizing the canal bargemen into the war effort, replete with great detail.