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Report - - St John's Medieval Water Conduit, Bristol. August 2025 | Underground Sites | 28DaysLater Urban Exploring Forums

Report - St John's Medieval Water Conduit, Bristol. August 2025

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Westcountry Explorer

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I've managed to finally tick off an explore of St John's Conduit 😊

HISTORY​

St John's Conduit was built in 1267 by Carmelite Friars who had a house established on the site where Bristol Beacon is (It's going to take me a while to stop thinking of Bristol Beacon as Colston Hall.); the Conduit brought water down from a Spring on Brandon Hill to the Friars house.

In 1376 a feather branch was built from the Friars house to St John's Church in Nelson Street to supply water to St John's parish and the city.

During the 2nd World, following damage to modern water mains, St John's conduit temporarily became the only source of water in the old city.

​
EXPLORE​

I'd purchased a copy of a booklet titled 'An account of St John's Conduit-Bristol's medieval water system' by the Temple Local History Group as part of my research into the Conduit. One handy thing is that the booklet has a map of the conduits course in the inside covers. I used that to roughly follow the course whilst above ground and also get an idea of access points.

Robb, a top guy I know who lives in the Bristol area and is into exploring as well, did a fair bit of leg work and sussed out which manhole covers in Park St were likely access points; he also kindly gave me the heads up when the manhole cover outside 58 Park St showed signs of having recently been lifted.

I owe a lot of thanks and gratitude to Robb for all he did 😊

I caught an evening train up to Bristol one Thursday evening at the beginning of July with the intention of attempting entry at night. I soon discovered there's a nightclub (Antix.) not too far away from the manhole cover and it's in easy sight of the doorstaff; maybe it was me being too soft & worrying about nothing but I didn't fancy attempting it with doorstaff just down the road. I kept envisaging them dobbing me in to the Rozzers. And so it was, that night was a duff. Bit of a killer waiting for the 1st train home lol

Antix nightclub is closed on a Monday & Tuesday night and so last night I drove up to Bristol and parked up in Trenchard St car park.

Park Street was nicely quiet and about 11:30pm ish I pulled up my big boy pants, put a couple of roadwork fencing around the manhole cover and managed to lift it. I was finally in 😁

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Here's a pic showing the water conduit under Park Street. The section that goes off under the buildings is now blocked off.

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The access point under the manhole cover.

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The booklet I have does indicate there's also access to the water conduit via a manhole near 75 Park Street. That cover is currently a bit tarmacked over; plus, the access down into the conduit doesn't look as easy as what it is via the way I went.

I thoroughly enjoyed exploring St John's. All that research & persistence, the payoff was worth it 👍

Some of the tunnels are a crawl job, some are tall enough to walk in. It's Muddy down there so expect to get a bit filthy but it wasn't wet or anything; no wellies or waders were needed for this explore.

Hope you've enjoyed this report. I have done a youtube video if any of you fancy wandering over to my channel and watching it.
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A great original report that concluding some proper research :thumb. Exeter should have similar, I intended to do some research whilst down there for uni but never really got chance, although they certainly do exist and looked similar judging by the small part covered on their underground tunnels tourist attraction tour.
 
A great original report that concluding some proper research :thumb. Exeter should have similar, I intended to do some research whilst down there for uni but never really got chance, although they certainly do exist and looked similar judging by the small part covered on their underground tunnels tourist attraction tour.
Thank you :)

I've been on the Exeter tunnel tour only once so far and that was about 9 years ago now; can't really remember what the tunnels were like. I've never looked into Exeter's tunnels so no idea how large they are or how much of the system is covered by the tour. I'll defo have a read up on them and do the tour again; wouldn't mind exploring the whole lot given half a chance lol
 
Thank you :)

I've been on the Exeter tunnel tour only once so far and that was about 9 years ago now; can't really remember what the tunnels were like. I've never looked into Exeter's tunnels so no idea how large they are or how much of the system is covered by the tour. I'll defo have a read up on them and do the tour again; wouldn't mind exploring the whole lot given half a chance lol
There is a lot more than what they show you on the tour, it was a tease really. I think they span quite a distance and date to the Medieval era with the lead pipe through the middle, like these. I think theyve got potential for sure!
 
Interesting network of tunnels,

Great job getting down there and documenting it, just my cup 'o tea is this :thumb
And that's just a small section of the original network. I've got a feeling the rest is no longer accessible/explorable but could be wrong.

I was well happy to finally get down there and have a good looksee 😊 I do enjoy a good bit of underground shenanigans lol
 
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That made a good read, good effort with the research and nice to see somewhere different.
 
I thought I would just add two photographs of where that water is supposed to come out of the St John's conduit. In the close up you will see the tap end in Nelson Street. I am not sure it has been opened recently.
Thanks for your most interesting report.

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(From the plaque above the tap)
ST. JOHNS CONDUIT
GRANTED TO THE VESTRY OF ST. JOHN IN THE 14TH CENTURY
THE SOURCE OF SUPPLY IS AT THE TOP OF PARK STREET WATER IS CONVEYED BY FEATHER PIPE FROM THE CARMELITES PRIORY CISTERN ON THE COLSTON HALL SITE - THROUGH HOST STREET AND CHRISTMAS STREET TO STUOHNS GATE
IT ORIGINALLY STOOD ON THE INNER SIDE OF THE GATE BUT WAS MOVED TO ITS PRESENT SIVE IN 1827 WHEN THE FOOTWAY ON THE EASTERN SIDE OF THE GATE WAS MADE
AFTER THE SUPPRESSION OF THE MONASTERIES THE ENTIRE COST OF MAINTENANCE AND REPAIR OF THE PIPE DEVOLVED UPON THE CHURCHWARDENS AND VESTRY SOMETIMES TAKING THE WHOLE PARISH REVENUE FOR A YEAR
IN 1865 AFTER A SEVERE DROUGHT THE DEEDS TOGETHER WITH THE WWERABURANSFERRED TO RESPONSIBILITY FOR LIPKEEP WERE THE LOCAL BOARD OF HEALTH
DURING THE AIR RAIDS OF 1940 IT WAS FOR A TIME THE SOLE WATER SUNPLY IN THIS PART OF THE CITY

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