ROACH BRIDGE WEIR, ROACH BRIDGE, NR SAMLESBURY, LANCASHIRE, ENGLAND.
THE RIVER DARWEN RUNS OVER THREE WEIRS IN THE SPACE OF TWO MILES FIRST ONE AT HOGHTON BOTTOMS, THE SECOND AT SAMLESBURY BOTTOMS  AND THIRD AT ROACH BRIDGE FURTHER DOWNSTREAM. THE WEIR AT ROACH BRIDGE WAS BUILT TO SUPPLY WATER TO THE THREE STORY PAPER MILL WHICH IS NOW DISUSED.
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