Treffry Viaduct from the air
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aerial photograph of Treffry combined viaduct and aqueduct Cornwall England UK. The 200m long, 27m high Treffry Viaduct was built was built in 1844 to carry a tramway taking minerals from mining activities to the port of Par.The viaduct carried both the tramway and a water supply. The water powered a water wheel which brought trams up the incline. The structure is listed as a Scheduled Monument but is in poor condition and is on Historic England's, Heritage at Risk register.