Three Mills Wall River Weir, Hydraulic structure in Mill Meads, United Kingdom
Three Mills Wall River Weir is a hydraulic structure spanning the Bow Back Rivers, regulating water levels across the Queen Elizabeth Olympic Park water system. It works in combination with adjacent locks and sluices to maintain consistent water depths for navigation and flood management.
The weir was built in 2009 during renovation of the Bow Back Rivers, replacing earlier water control systems that served the historic Three Mills complex. Its construction was part of broader redevelopment of the area in preparation for the Olympic Games.
The weir forms part of an industrial heritage corridor along the River Lea, connecting modern water management with centuries of milling traditions.
The site is easily accessible on foot from surrounding paths and offers views of the water control mechanisms from several vantage points. Lighting is good during daylight hours, and the clearest views are from public walkways around the park.
This water control system enables the management of water levels at lower heights than previous recorded measurements across the Olympic Park area.
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