Update – see below


Very exciting news as a long forgotten and overlooked marvel under the Thames is to have its first ever public tours.

In 1805, the Cornish inventor and mining engineer, Richard Trevithick was hired to dig a tunnel under the Thames in the first major attempt of its kind, and one which predated the more famous Brunel tunnel by some 40 years.

Sadly, the tunnel attempt failed, mainly as the firm behind the project ran out of money, but realistically, the engineering skills were still not ready for such an undertaking.

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However, the two initial driftway tunnels dug by Trevithick still exist, and have been looked after by a local history association since 1983 with the intention of somehow opening up the tunnels to the public.

Tours are difficult as the only access is via the Rotherhithe Tunnel, but this coming May Bank Holiday, the tunnel will be closed to road traffic and the very first ever public tours will take place.

Visitors will be able to enter through one tunnel, then pass through a breach at the far end to walk back down the other tunnel. The initial much smaller driftway lies above, and is off-limits as it is far too small to let people into.

IanVisits is the media partner for the open day.

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Tickets will be released at 9am, and are free of charge, so expect them to be snapped up fast.

You can get details on their website here.


Sorry — but it was an APRIL FOOL.

Richard Trevithick did indeed attempt to tunnel under the Thames at roughly that location, but all he dug was a very narrow pilot tunnel barely big enough for a single person to stand in.

While a marvel, and sadly rather forgotten about, it was nothing like as large as the photos or drawings on the website suggested, which are a mix of the Connaught Tunnel in docklands, now part of Crossrail, and the actual Rotherhithe road tunnel.

The remains of Trevithick’s tunnel probably still lie down there, infilled by mud from the Thames, but just maybe, one day, a survey will be carried out looking for the outline of the wooden supports which should leave a modestly detectable echo in the ground for geophysics to discover.

Hopefully you’re not too disappointed, and do read more about Richard Trevithick, he is a somewhat overlooked genius.

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Whats's on in London: today or tomorrow or this weekend

7 comments on “Tours of a disused tunnel under the Thames announced
  1. Robert Johnson says:

    I was just wondering when your customary 1st April post would be published! Little would beat last year’s, which had me fooled for a bit…

  2. Imogen de la Bere says:

    Good! But last year’s masterpiece will be hard to beat.

  3. David says:

    Darn it, you totally got me with this one!

  4. Marie says:

    Good one 🙂

  5. Dan Cheetham says:

    You got me. I just clicked back on the site to see if there was a post to top last year’s brilliant piece only to find that I’d actually fallen for it at 9am.

    At least my partner will be pleased we are not trudging through a tunnel during the Bank Holiday.

  6. Michelle says:

    Damn it, I fall for an April Fools trick every bloody year but never learn! I thought it was odd that I’d never heard of this tunnel before… but that didn’t stop me from trying to get tickets! 😉 Good one 🙂

  7. Gerry says:

    Aaaarrrggghhh !

    Having forwarded it to all my friends, should I now claim that I knew all along that it was a hoax, should I admit that I really fell for it hook line and sinker, or should I hope they’ll be too embarrassed to own up that they were also fooled?

    Decisions, decisions…

    Or perhaps I’ll have no friends left – half will blame me for successfully hoaxing them, and half will blame me for being a Fool !

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