# Talk:River Welland

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I have just modified 6 external links on River Welland. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

Added archive https://web.archive.org/web/20150609075523/http://www.ceh.ac.uk/data/nrfa/data/time_series.html?31004 to http://www.ceh.ac.uk/data/nrfa/data/time_series.html?31004
Added archive https://web.archive.org/web/20120323123810/http://www2.spaldingtoday.co.uk/sites/history/bulbs.html to http://www2.spaldingtoday.co.uk/sites/history/bulbs.html
Added archive https://web.archive.org/web/20120308073354/http://www.peterborough.gov.uk/pdf/env-plan-ldf-cs-lcs-area3.pdf to http://www.peterborough.gov.uk/pdf/env-plan-ldf-cs-lcs-area3.pdf
Added archive https://web.archive.org/web/20110726083038/http://www.fenswaterways.com/Portals/0/docs/navigation_guides/Welland_Glen_Navigation_Guide.pdf to http://www.fenswaterways.com/Portals/0/docs/navigation_guides/Welland_Glen_Navigation_Guide.pdf
Added archive https://web.archive.org/web/20100717033537/http://www.lincstrust.org.uk/reserves/nr/reserve.php?mapref=99 to http://www.lincstrust.org.uk/reserves/nr/reserve.php?mapref=99
Added archive https://web.archive.org/web/20110726083038/http://www.fenswaterways.com/Portals/0/docs/navigation_guides/Welland_Glen_Navigation_Guide.pdf to http://www.fenswaterways.com/Portals/0/docs/navigation_guides/Welland_Glen_Navigation_Guide.pdf
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Hello fellow Wikipedians,
I have just modified one external link on River Welland. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

Added {{dead link}} tag to http://southeastlincslocalplan.org/files/2012/02/River-Welland-Catchment-Flood-Management-Plan-December-2009.pdf
Added {{dead link}} tag to http://wellandidb.org.uk/index.php
Added archive https://web.archive.org/web/20110616181654/http://www.lincstrust.org.uk/reserves/nr/reserve.php?mapref=19 to http://www.lincstrust.org.uk/reserves/nr/reserve.php?mapref=19
When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.
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Cheers.—InternetArchiveBot (Report bug) 22:13, 22 January 2018 (UTC)

The A16 was rerouted some years ago and no longer goes to Stamford. All occurrences of 'A16 bridge' in the course diagram should be checked. Mdrb55 (talk) 20:52, 30 June 2020 (UTC)
Open Street Map says the bridge in Stamford is the A1175; Google Maps says it's the A43. I don't know which is correct! Mdrb55 (talk) 21:00, 30 June 2020 (UTC)
The bridge south of Spalding is the A1175 on both OSM and Google Maps.
The bridge on the north edge of Spalding is still the A16. Mdrb55 (talk) 21:07, 30 June 2020 (UTC)

It is not immediately clear where the figure cited for the length of the Welland in the article (65mi/105km) originates. I have however painstakingly measured its length on online 1:25,000 scale OS mapping using a digital tool at the wheresthepath website and determined it at 81.8mi/131.6km to the county limit and 85.1mi/137km to the point (Welland Outfall) at which arguably it and the River Witham enter the waters of the Wash. I'd be confident of the accuracy of the figure to within 1%. This is of course original research on my part so cannot be included in the article but it does at least give an idea of what a true figure should look like if and when an editor finds a suitable reference out there! cheers Geopersona (talk) 19:15, 31 December 2021 (UTC)

It seems you are right, @Geopersona:, that the 65 mile figure is wrong but commonly used. Add up the lengths (from the Environment Agency) in the section River Welland#Water quality and you get 78.4mi/126.2km.
Other estimates:
http://www.wellandriverstrust.org.uk/the-river-welland/ has 105km
https://www.britannica.com/place/River-Welland "about 70 miles (110 km)"
So, what Reliable Source can we use to support a longer-than-65-miles length? Nedrutland (talk) 11:10, 2 January 2022 (UTC)
Ah, well yes @Nedrutland: - finding that is indeed our challenge! I attempted to encourage Ordnance Survey to publish river lengths but they shied away from it - I can understand why they'd do that, given the subjective element in coming up with a 'definitive' figure. Geopersona (talk) 18:24, 2 January 2022 (UTC)