This month the Pontcysyllte Aqueduct is getting an inspection and a tidy-up. It's the waterways equivalent of a haircut and a shoe-shine, and shouldn't take long.
It gets one every five years or so. There was one in 1998, but the aqueduct's last - and biggest -inspection and repair was in the winter of 2003-4.
That particular renovation was the biggest the aqueduct had ever seen, closing it for several months and costing around £2million.
After that refurbishment British Waterways concluded it ought to be 'good for another 200 years.' The reopening in March 2004 was subdued, with the real celebrations being held back for the aqueduct's 200th anniversary the following year.
Since then - and particularly after the aqueduct, its sister at Chirk and about 10 miles of canal gained World Heritage Site status this year - there's been a lot more attention paid to it.
Yet there are surprisingly few books dedicated to this 'iconic' wonder of the waterways, at least those which are currently in print. Amazon lists only a handful. (What am I doing wrong? Where are they?)
I was thinking about this when I started browsing one of my own out-of-print treasures last week, Pontcysyllte Aqueduct Restoration.
His DIY publishing gives the book considerable 'rough edges'. But all this only adds to its authenticity and fascination.
What makes it so special is that it's not a book by a historian, an author or a marketing department. It's a book by a hands-on engineer, one who told the real tale of the project because no-one else did.
That tale included not just the project itself, but the after-hours real life and privations he experienced as they raced to get the project finished in time for the 2004 cruising season.
(One wonders what would happen now, five years on, if BW's marketing department produced it. Or, indeed, if they learned that someone on the project was writing it. Would they insist on jumping in, seizing control? Professional photography, writing and editing would probably have glossed the story into only two dimensions.)
Richard set up his own website to take and fulfil the orders. I was particularly pleased that he took the trouble to give a private dedication. And at £10 for a hardback it was reasonably priced.
I wonder how many other people are lucky to have a copy in their waterways book collection?
At the time he used the cool, memorable and then-available domain www.pontcysyllte.co.uk, but he's since let it lapse and someone else squats on it now. You might have trouble tracking the book down. It's listed as ISBN 9546422258, but there's no record of that number on the ISBN database.
(Harrumph, I bet now that you find a copy in ten seconds of googling!)