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Cruising from Sawley Marina to Keadby lock


Jacobyte

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A little dated now but NABO produced a good 2-page guide to the Trent which also lists all of the contact details for the locks.

 

attachicon.gifNABO Guide To The Trent.pdf

 

 

That's generally all good, sound advice, except for the paragraph headed "About Tides" :~

 

Twice a day tidal surges from the Humber come up the Trent at around 11 m.p.h., i.e. eleven miles further up the river the tide arrives one hour later. The surge is a level rise followed by no more than 3 hours of upstream flow, the ‘flood’, which diminishes in strength and duration as it goes up river, usually losing its battle against the natural river flow before reaching the weir at Cromwell. This explains why the upstream journey on the tideway can soon turn from exhilaration to tedium. The assistance you get going with the flood tide will be greatest on spring tides, but even then it can be disappointing if there is a large amount of ‘fresh’ coming downstream. Time your journey north to avoid fighting the flood by mooring at Torksey or Dunham as it passes.

 

Why does this belief that the downriver passage is best made all the way on the ebb persist ?

The 43 miles from Cromwell to Keadby will always mean that boats following this advice will be arriving Keadby Lock, or Stockwith for that matter, with a strong ebb running down across the entrance to the lock, and, particularly at Keadby, the likelihood of barely enough depth of water in the lock tail for them to get in.

Edited by Tony Dunkley
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