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Latitude: 50.2349 / 50°14'5"N
Longitude: -5.1398 / 5°8'23"W
OS Eastings: 176184
OS Northings: 41931
OS Grid: SW761419
Mapcode National: GBR Z8.P90P
Mapcode Global: FRA 083D.RDY
Plus Code: 9C2P6VM6+X3
Entry Name: Tunnel at SW 762419 SW Part of the Redruth and Chasewater Railway
Listing Date: 12 March 1986
Grade: II
Source: Historic England
Source ID: 1140856
English Heritage Legacy ID: 63409
ID on this website: 101140856
Location: Twelveheads, Cornwall, TR4
County: Cornwall
Civil Parish: Gwennap
Traditional County: Cornwall
Lieutenancy Area (Ceremonial County): Cornwall
Church of England Parish: Highertown
Church of England Diocese: Truro
Tagged with: Architectural structure
SW 74 SE LEA
1/123 Tunnel at SW 762419 SW part of the
Redruth and Chasewater Railway
II
Tunnel for stream through railway embankment. Circa 1824. Killas rubble except for
dressed granite voussoirs to round-arched tunnel entrances to north and south.
single span with taller keystone to middle of each arch and vertical rubble walling
over flanked by battered and splayed embankment retaining walls.
The Redruth and Chasewater Railway, 1824-1915, was constructed to carry mineral ore
to the port of Devoran from the mining hinterland and was horse drawn until 1854,
when steam locomotives were introduced.
This tunnel or bridge is the main feature of the tall embankment which enabled the
railway to cross the valley and also provided efficient outlet for water from for THE
GREAT ADIT, a remarkable C18 feat of engineering which facilitated the draining of
mines for an area of several square miles.
Listing NGR: SW7618441931
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