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HER Number:MDV121796
Name:Leat to Reservoir for Morwellham Hydro-Electric Power Station

Summary

A leat cut to feed water from the Tavistock Canal to the reservoir for the Morwellham hydro-electric power station in 1933-34.

Location

Grid Reference:SX 447 701
Map Sheet:SX47SW
Admin AreaDevon
Civil ParishGulworthy
DistrictWest Devon
Ecclesiastical ParishTAVISTOCK

Protected Status: none recorded

Other References/Statuses: none recorded

Monument Type(s) and Dates

  • LEAT (Built, XX - 1933 AD to 1934 AD (Between))

Full description

Cornwall Archaeological Unit, 2017, South Cornwall Rapid Coastal Zone Assessment Survey Desk-Based Assessment, 1009 (Interpretation). SDV360825.

A leat cut to feed water from the Tavistock Canal to the reservoir (GAZ 1008) for the Morwellham hydro-electric power station.


Waterhouse, R., 2017, The Tavistock Canal. Its History and Archaeology, 296, 330-1, figs 9.8, 10.29 (Monograph). SDV361789.

Just downstream of the southern portal of the Morwelldown Tunnel, the canal water is now drawn off down a new channel, created in 1933-34 to carry water to the Morwellham Hydro-Electric Station. The channel is 330 metres long, terminating in a large, concrete-lined reservoir at the top of Sheepridge Wood, high above Morwellham's Lower Copper Quay, where the power station is located.
The channel is 3 metres deep by 2 metres wide and was cut into the rock with dynamite and air picks before being lined with shuttered concrete; two unlined channels take the water beneath the road from Rock to Morwellham, and through a ridge in the hillside to its south. A large guillotine sluice near the tunnel portal controls the flow of the water; the waste goes down the valley over a small adjoining weir.


Ordnance Survey, 2018, MasterMap 2018 (Cartographic). SDV360652.

Leat or conduit shown, partly underground.

Sources / Further Reading

SDV360652Cartographic: Ordnance Survey. 2018. MasterMap 2018. Ordnance Survey Digital Mapping. Digital. [Mapped feature: #111178 ]
SDV360825Interpretation: Cornwall Archaeological Unit. 2017. South Cornwall Rapid Coastal Zone Assessment Survey Desk-Based Assessment. RCZAS. Digital. 1009.
SDV361789Monograph: Waterhouse, R.. 2017. The Tavistock Canal. Its History and Archaeology. The Tavistock Canal. Its History and Archaeology. Paperback Volume. 296, 330-1, figs 9.8, 10.29.

Associated Monuments

MDV62956Related to: Hydroelectric Power Station at Morwellham (Monument)
MDV19388Related to: Leat from Tavistock Canal, Gulworthy (Monument)
MDV124814Related to: Morwellham Terminus Wharf (Monument)
MDV124677Related to: Morwellham Tunnel end wharf (Monument)
MDV121804Related to: Reservoir for Morwellham Hydro-Electric Power Station (Monument)
MDV52866Related to: Tavistock Canal, Weir & Sluice (Monument)

Associated Finds: none recorded

Associated Events: none recorded


Date Last Edited:Jan 17 2019 3:35PM