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Dinorwig Power Station 1980's

These photos were taken soon after Dinorwig opened. I had two tours, one beforehand when I was unable to taken any photos, and this one when I was. As they show some areas not open to the public and a lot of thw weork was done by Blaenau people, I thought they might be of interest.

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48 Photos in the album

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23 May 1977 Llyn Marchlyn Mawr Construction Work: Headworks under construction (Dinorwig-Power-Station-1980s-Image-38734)
Add to Favourites 6 Jan 1980 Construction Site: View across the drained Llyn Peris to the construction site with the power station entrance on the left and the water inlet/outlet on the right. (Dinorwig-Power-Station-1980s-Image-38733)
Add to Favourites 23 May 1977 Llyn Marchlyn Mawr Work: Llyn Marchlyn Mawr was drained and altered in a big way during this period. This shows some of the work being done while the lake was drained. (Dinorwig-Power-Station-1980s-Image-38732)
Add to Favourites 9 March 1977 Construction Camp: This shows the large construction camp at the main power station entrance. (Dinorwig-Power-Station-1980s-Image-38731)
Add to Favourites 23 May 1977
Add to Favourites 23 May 1977 Dinorwig Underground 2: The original slide titles this as the
Add to Favourites 23 May 1977 Dinorwic Underground: The original slide titles this as
Add to Favourites 21 Jan 1979 Entrance Area Construction: This shows construction work at the main power station entrance. (Dinorwig-Power-Station-1980s-Image-38727)
Add to Favourites 21 Jan 1979 Llyn Peris Part Drained: If it wasn't for the spoil heaps and the castle Llyn Peris could be mistaken for an opencast quarry! (Dinorwig-Power-Station-1980s-Image-38726)
Add to Favourites 26 Apr 1980 'Watergate 2': This is the water inlet/outlet between Llyn Peris and the power station during construction. See also
Add to Favourites 26 Apr 1980 Llyn Peris as a works yard: Whilst drained for deepening and re-profiling Llyn Peris also acted as part of the works yard (Dinorwig-Power-Station-1980s-Image-38724)
Add to Favourites 26 Apr 1980 The Machine Hall: This is the large cavern 180 meters long, 23 meters wide, 51 meters (max) high that was excavated for the pump/turbines and their associated plumbing. (Dinorwig-Power-Station-1980s-Image-38723)
Add to Favourites 26 Apr 1980 Llyn Marchlyn Mawr Dam: This dam was constructed to convert Llyn Marchlyn Mawr from a lake into the upper reservoir. (Dinorwig-Power-Station-1980s-Image-38722)
Add to Favourites 6 Jan 1980 Llyn Peris Drained: During the construction of the power station Llyn Peris was drained, deepened and re-profiled. Also the lower levels of the quarry and the tips were altered. (Dinorwig-Power-Station-1980s-Image-38720)
Add to Favourites Marchllyn late seventies.: Perhaps this is not in the right album, but it does seem related. It shows Marchllyn substantialy drained for the construction of the dam. Taken sometime in the late seventies by Geoff Jones on a 126 instamatic. (Dinorwig-Power-Station-1980s-Image-034)
Add to Favourites A last view of the inlet gallery (Dinorwig-Power-Station-1980s-Image-033)
Add to Favourites Outlet valve gallery (Dinorwig-Power-Station-1980s-Image-032)
Add to Favourites Draught tube - below the turbine (Dinorwig-Power-Station-1980s-Image-031)
Add to Favourites The top of the turbine/pump: Now you can see that shaft was turning! (Dinorwig-Power-Station-1980s-Image-030)
Add to Favourites Inside the hood: Strangely it was much quieter inside the hood than outside! That shaft is still turning at 500rpm. (Dinorwig-Power-Station-1980s-Image-029)
Add to Favourites The main shaft: Looking up from the turbine hood towards the generator above. This shaft was turning at 500rpm when I took this. (Dinorwig-Power-Station-1980s-Image-028)
Add to Favourites Intermediate gallery: the white thing is the acoustic hood covering the pump/turbine - the actual alternator/motor is in the
Add to Favourites Looking down to the machine floor: The silver object is one of the pump/turbine runners, while the blue object covers the Excitation brush gear (Dinorwig-Power-Station-1980s-Image-026)
Add to Favourites Having crossed the cranes: A view the other way (Dinorwig-Power-Station-1980s-Image-025)
Add to Favourites Cranes in the machine hall roof: The top of the hall was dominated by a series of cranes and their tracks. (Dinorwig-Power-Station-1980s-Image-024)
Add to Favourites The main machine hall: Seen from up near the roof. The whole of this huge volume was mined out of the rock and slate. (Dinorwig-Power-Station-1980s-Image-023)
Add to Favourites Closeup of inlet valve: The valve is shut (the weights are down). (Dinorwig-Power-Station-1980s-Image-022)
Add to Favourites Inside the valve gallery: These are the high pressure inlet valves in their mined chamber deep in the mountain. The nearer valve is shut the one beyond it is open. The yellow weights are raised by hydraulic power and closed by their own weight, the hydraulic rams acting as dampers/dash pots. (Dinorwig-Power-Station-1980s-Image-021)
Add to Favourites Looking down into the surge pond and shaft (Dinorwig-Power-Station-1980s-Image-020)
Add to Favourites The surge shaft and pond: The pond itself is 14m deep, with en enlarged shaft head 65 m deep below it. Then there is a 35m
Add to Favourites Another view over Dinorwic (Dinorwig-Power-Station-1980s-Image-018)
Add to Favourites Looking out over Dinorwic: The view from the shaft access road (Dinorwig-Power-Station-1980s-Image-017)
Add to Favourites The access road to the surge shaft head (Dinorwig-Power-Station-1980s-Image-016)
Add to Favourites Closeup of gate (Dinorwig-Power-Station-1980s-Image-015)
Add to Favourites View down the gate chamber: Looking down into the actual gate slots. (Dinorwig-Power-Station-1980s-Image-014)
Add to Favourites Looking up the gates to the winches (Dinorwig-Power-Station-1980s-Image-013)
Add to Favourites In the gate chamber (Dinorwig-Power-Station-1980s-Image-012)
Add to Favourites Closeup of the gate winches. (Dinorwig-Power-Station-1980s-Image-011)
Add to Favourites Massive concrete at the headworks (Dinorwig-Power-Station-1980s-Image-010)
Add to Favourites Headworks: The platforms support the gate winches. (Dinorwig-Power-Station-1980s-Image-009)
Add to Favourites At the headworks (Dinorwig-Power-Station-1980s-Image-008)
Add to Favourites In the headworks access tunnel. (Dinorwig-Power-Station-1980s-Image-007)
Add to Favourites Headworks access tunnel entrance: This gives access to the gates which can be used to seal off the pipes. (Dinorwig-Power-Station-1980s-Image-006)
Add to Favourites Marchlyn Mawr Instrumentation Area (Dinorwig-Power-Station-1980s-Image-005)
Add to Favourites Marchlyn Mawr Overflow (Dinorwig-Power-Station-1980s-Image-004)
Add to Favourites Marchlyn Mawr Dam: This is covered by a flexible impervious membrane to resist the frequent changes in water level. (Dinorwig-Power-Station-1980s-Image-003)
Add to Favourites Marchlyn Mawr (Dinorwig-Power-Station-1980s-Image-002)
Add to Favourites At Marchlyn Mawr: The
Add to Favourites
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