The UK has over 4,000 miles of inland waterways and 7,000 miles of coastline.
The Maritime & Coastguard Agency maintains a list of inland Waterways or Catagorised Waters in a document called Maritime & Coastguard Agency Merchant Shipping Notice MSN1837 (M) amendment 3.. These “Inland waters” include any area of water NOT categorised as “sea” – for example, canals, tidal and non-tidal rivers, lakes, and some estuarial waters (an arm of sea that extends inland to meet the mouth of a river).
They are grouped into the following four categories:
Category A – narrow rivers and canals where the depth of water is generally less than 1.5 metres
Category B – wider rivers and canals where the depth of water is generally 1.5 metres or more and where the significant wave height could not be expected to exceed 0.6 metres at any time
Category C – tidal rivers, estuaries and large, deep lakes and lochs where the significant wave height could not be expected to exceed 1.2 metres at any time
Category D – tidal rivers and estuaries where the significant wave height could not be expected to exceed 2 metres at any time
As we often refer to this document for the work we do with ScaffFloat and have put together an interactive Google Map which shows the limits of these areas.
This map is shown below and embedded on our website to help our partners, customers, and others in the industry who may find it helpful.
We hope you find it helpful,
Team ScaffFloat
Disclaimer: We use this map for visual reference only and can’t hold any responsibility for it’s accuracy. We recommend any users download the latest version of Maritime & Coastguard Agency Merchant Shipping Notice MSN1837 (M) amendment 3 and do not use this map as their sole source of information. We hold no responsibility for how you use this map.
Errors: If you do spot an error, please email: sales@scafffloat.co.uk, and we will rectify it.
