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Client: WLW Heratage Lottery Fund

Objective: Bypass historic lock for fish passage

With over 500 structures along the southern navigation's preventing fish passage, Olympic were asked to construct a brick culvert and bypass an old historic lock and turbine channel which was preventing the passage of small fish and fry. To create the correct hydrology over 300 meters of channel were excavated and lined with geotextile and stone to brake the water and create refuge. The sides were then planted with established plants taken from up stream to help prevent erosion of the new channel. When the water was finally meandering through small fry were seen within 2 hours moving up stream. The old turbine was then filled and the whole area landscaped and seeded. The area was also transformed from wasteland to a wildlife area enjoyed by nearby residents.