]> 2026-04-12T07:41:02+00:00 Case study:Chester Weir Notch 500 en Approved Natural Resources Wales Great Britain No No Yes 53.18641,-2.88694 JoshRRC Josh Natural Resources Wales Robins ,, ,,, 28534 Chester-weir.jpg Complete In partnership with the Environment Agency, the aim of the work was to improve downstream passage for young salmon and sea trout as part of the multi-million-pound LIFE Dee River project, led by Natural Resources Wales (NRW). Located at the tidal limit of the Dee, Chester weir is 150 metres in length and 3 metres high. An existing canoe and fish gate was in place in the weir crest that had not functioned for over 20 years. Prior to the work, young fish were often delayed on their downstream journey by the weir, particularly at low flows in the spring when there was not enough water to help them pass over the structure. Unable to swim over such a large man-made barrier, fish would congregate above the weir and were more vulnerable to predation from birds and larger fish. Work to dismantle the existing gate and surrounding structure was carried out during low tides by experienced local contractors, using a pontoon to transport materials across the river. A new, specially fabricated stainless-steel gate was installed which is operated by a winch on the bank, allowing it to be opened and closed easily at key periods throughout the year. Chester Weir Notch chester weir notch Middle Dee Dee Dee - Chester Weir to Ceiriog dee - chester weir to ceiriog 1000 - 10000 km² 136 100 - 200 m Dee - Chester Weir to Ceiriog GB111067057080 Fisheries 2025-07-04T10:45:34Z 2460860.9483102 2025-07-04T12:17:23Z 2460861.0120718 Chester Weir Notch 500 1 plainlist 5 [[Category:Case study]] [[Project title::!Chester Weir Notch]] [[Subcatchment title::Dee - Chester Weir to Ceiriog]] Chester Weir Notch# QUERYd4cd5bb52ddb9518f109985194819385