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The last chalk mine to close was at … Thompson & Sons, for instance, used the caves and tunnels when they occupied the Chalk Hill Works site as a natural storehouse for iron, zinc and tin, erecting two stout doors at the entrances to the main tunnels. It was located at the castle entrance, on the route leading thence to the market. This was an explore in Norwich itself, following a tip off that an old factory had been demolished exposing the entrance to these Chalk mines for a short period of time. Sign Up The flints that can be seen embedded in layers in the chalk were used to build the city’s walls and some of Norwich’s finest buildings such as the Guildhall. Norwich was mined for chalk and flints from the Middle Ages until the beginning of WWII but some of the chalk mines are much older, the earliest are believed to date from the 12th century. The extensive chalk mines to the west of Wickham Lane, Plumstead were dug in the 19 th and early 20 th centuries to support brick and tile making operations. save hide report. Mine entry shaft, South Oxhey, Hertfordshire. ︎ Subscribe for more weekly uploads every Thursday at 4pm. Chalk mines. Please read the proper disclaimer. The chalk was used for liming in agriculture and in building mortar. The oldest mines are located closest to the centre of Norwich and more mines were dug further out as the city grew. Norwich has been mined for chalk and flints since at least the 12th century for building and agricultural purposes. In the 19th century Coleman’s Brewery Company occupied the site and used the tunnels for extensive storage. Chalkangles date from the 1800s and represent a localised variant of the chalkwell. 9. Coal Authority is an executive non-departmental public body, sponsored by the Department for Business, Energy & Industrial Strategy . The oldest mines are located closest to the centre of Norwich and more mines were dug further out as the city grew. Chalk mine labyrinth was once a hive of industry. The oldest mines are located closest to the centre of Norwich and more mines were dug further out as the city grew. Norwich Chalk Mines. 10 . https://www.youtube.com/watch?v=hneVwuDdu-E. Its seems to have been a bit of a tourist attraction recently, though last I heard the entrance had been buried. 24 comments. Sources: 1. I've looked online and havnt seen anything about Hartford Hills for a few years so I'm wondering wether it's still accessible, and whereabouts the entrance is in Danby Woods. Chalk Mines and Lime Kilns. This old tunnel entrance with its level at Riverside Road leading up the slope to the site of the Chalk Hill Works depicted on a map of the city of Norwich prepared by Mr. A.W. Urban exploration at an abandoned chalk mine in Norwich. The easiest to enter is simply a doorless doorway in the side of a hill. Norwich City Council also advise that the public refrain from seeking out the mines. (Image source: Peter Brett Associates) (d) Chalkangles. Can’t find it anywhere! It includes a gothic fountain, flower beds, lawns, woodland walkways, rustic bridge, Italianate terrace, ‘Medieval’ terrace wall; and hundreds of architectural details fashionable in the mid 19th century. Where is the entrance located? Morant, the City Surveyor in 1873. Harford Hills, which is to the south of the city, was the last working mine in the area, and was still being worked into the 1930s. It used to be easy to find. Chalk Mines and Lime Kilns Norwich was mined for chalk and flint from the middle ages until the start of World War 2. This map also indicated another tunnel leading from the old football ground chalk pit to a second landing stage along the river. 6. List of chalk mines in the United Kingdom . This old tunnel entrance with its level at Riverside Road leading up the slope to the site of the Chalk Hill Works depicted on a map of the city of Norwich prepared by Mr. A.W. The tunnels were 10 feet high and 8-10 feet wide. Close. ︎ We explored the old Harford Hills chalk mines in Norwich. All inputs are optional, use as many or as few as you wish. The Harford mine was the last to close. Norwich City Councils website was the source of some of my information, it goes into more depth about Norwich’s mining history http://www.norwich.gov.uk/services/Pages/ChalkWorkings.aspx, There is some interesting information on the geology of Norwich here: http://www.heritagecity.org/research-centre/subterranean-norwich/geological-norwich.htm, Norfolk Uncovered made a good video about the mine, they even created a map of the tunnels. Earlham Road chalk mine: example of fracture propaga- tion in sidewall. Initially brick lined, the tunnels are left unsupported the further in they go. There are two entrances to the mine within a few yards of each other. But thought i'd post it here in a more organised manner. http://www.norwich.gov.uk/services/Pages/ChalkWorkings.aspx, http://www.heritagecity.org/research-centre/subterranean-norwich/geological-norwich.htm. The chalk was used for liming in agriculture and in building mortar. The story of these mines is a long and, indeed, a highly visible one. Mine treatment This paper has been mainly concerned with the circumstances surrounding the instability of old chalk mine workings in Norwich, and it is not proposed to discuss mine treatment here in detail. Norwich was mined for chalk and flint from the middle ages until the start of World War 2. The latter, often several hundred years old, are liable to collapse, and may reach the ground surface. The entrance is on Rosary road, it was until recently visible from the road but now behind some new flats. The source of the photograph circulated across the globe via various internet humour websites and email circulars is not known; the image shown is from a different source. This map also indicated another tunnel leading from the old football ground chalk pit to a second landing stage along the river. Smith and M.S. Disclaimer: Mine exploring can be quite dangerous, but then again it can be alright, it all depends on the weather. Some 20-30 feet from the entrance of one of these tunnels, other small tunnels (about eleven in. Fig. Norwich was mined for chalk and flint from the middle ages until the start of World War 2. J.W. Hayes, from which about 25,000 yards of material had been taken for lime burning. Rosary Road Chalk Mine. In the early 19th century the lime-kilns and chalk workings around this area were fully exploited but by the end of the century housing and industrial development had made access to the pits and tunnels difficult and they eventually were abandoned. I have more but most are rubbish but I’ll try and sort through them. Tunnels created during mining for flint and chalk, at least as far back as the 13th century, certainly exist under Norwich, but mostly around the outskirts of the medieval city. Norwich was mined for chalk and flints from the Middle Ages until the beginning of WWII and the last mine to close was at Harford Hills, to the south of Norwich. Enter the Chalk Mines of Pinner. Below is a really bad video I made of my first venture into the mine. Posted by 1 month ago. Chalk mining methods have evolved throughout history as extraction techniques have improved, but they are also regionally variable, reflecting local conditions, available resources and demand. Norwich Chalk Mine belongs to the Norfolk region. There are new houses in front of it. The entrance is on Rosary road, it was until recently visible from the road but now behind some new flats. Solid information isn't required, we're happy to investigate even the slightest rumours. On 3 March 1988, Earlham Road was the scene of the bizarre sinking of a double-decker bus.The cause of the event was found to be the collapse of a Medieval chalk mine discovered under the road. Engineering Geologists | Planners & Developers | Finance & Insurance | Member of the Public : Fault Reactivation Hazard The principal collapse mechanism is identified as localised void migration, following roof collapse, with a possible secondary contribution from pillar over-stressing. ... lime burning, and chalk mining. The chalk here is of the same which makes up our famous southern cliffs, with the chalk going deep underground after Dover, resurfacing next in the Northwood Hills area. There is some interesting information on the geology of Norwich here: http://www.heritagecity.org/research-centre/subterranean-norwich/geological-norwich.htm. I'm trying to find the location of some of the old chalk mikes in and around Norwich, mainly Harford Hills and Rosary Road. This thread is archived. The Coal Authority works to resolve the impacts of mining. The grid reference given for the location on the Defence of Britain website is more than one kilometre off the mark. The mine entrance is being kept sealed by Norwich City Council. The entrance is on Rosary road, it was until recently visible from the road but now behind some new flats. Norwich Jan 11 The city of Norwich is underlain at shallow depth by abandoned mineworkings made for the extraction of chalk and flints. A disused chalk mine in Norwich: Norfolk is well-known for its miles of disused chalk mines, reservoirs, Grimes Graves and a nuclear bunker - all underground. What remains are a labyrinth of tunnels, some intersecting at different levels but typically with the same upturned flower pot profile. 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