{{Short description|Reservoir in Cornwall, England}} {{For|other places named Porth|Porth (disambiguation)}} {{moresources|date=November 2022}} {{Use dmy dates|date=April 2022}} {{Infobox body of water | name = Porth Reservoir | image = Porth Reservoir.jpg | caption = View west from the road to Nanswhyden | alt = A road curving right with a lake in the middle distance | image_bathymetry = |pushpin_map=Cornwall | caption_bathymetry = | location = Cornwall | coords = {{coord|50|25|11|N|5|0|5|W|type:waterbody_region:GB|display=inline,title}} | type = Reservoir | inflow = | outflow = | catchment = | basin_countries = United Kingdom | length = | width = | area = {{convert|40|acre|abbr=on}} | depth = | max-depth = | volume = | residence_time = | shore = | elevation = c.100ft (30 m) | islands = | cities = }}
'''Porth Reservoir''' is a reservoir in Cornwall, England, most of which is in the parish of Colan. The concrete dam was completed in 1960, and the lake has a net capacity of approximately 113,000,000 gallons (514,000,000 litres).<ref>{{Cite web |url=http://www.southwestwater.co.uk/index.cfm?articleid=1529 |title=South West Water - Impounding reservoirs<!-- Bot generated title --> |access-date=2008-03-12 |archive-url=https://web.archive.org/web/20170211235328/http://www.southwestwater.co.uk/index.cfm?articleid=1529 |archive-date=2017-02-11 |url-status=dead }}</ref>
The reservoir has an area of about 40 acres (0.16 km<sup>2</sup>), and a perimeter of approximately 3 miles (4.8 km). It now operates as a coarse fishery, with a nature reserve at one end.<ref>[http://www.cornwall-calling.co.uk/fishing.htm Cornwall, England, fishing - river, sea, trout, fly<!-- Bot generated title -->]</ref>
The reservoir is principally fed by the small river that starts near Ruthvoes, about 4 miles (6 km) to the east. From the reservoir's outlet, the river flows to St Columb Porth, where it enters the sea.
Construction of the reservoir and dam was carried out by the Newquay & District Water Company. It was officially opened on 16 June 1960 by A. C. McLellan, then president of the Institution of Water Engineers.
==See also== {{Portal|Cornwall}} *St Columb Major * List of reservoirs and dams in the United Kingdom
==References== <references/>
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Category:Environment of Cornwall Category:Reservoirs in Cornwall
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