]> 2026-04-19T00:52:37+00:00 Case study:RECONNECTING THE RODING- WEIR REMOVAL 500 en Thames21 City Airport Yes No Yes Carolina Thames21 Orlandi Pinto 28381 City Airport Roding weir view right bank Roding_weir.png Complete * Removal of the notched weir at Roding Valley Park (TQ 41502 89321), opening approximately 10km of upstream habitat for migratory fish, such as the critically endangered European eel, to use * Reinstatement natural flows and sediment movements within the River Roding at Roding Valley Park, helping to improve the availability of habitats for a range of wetland species including bullhead (a bottom dwelling freshwater fish), dragonflies and damselflies * Directly improve 100m of river habitat through the addition of in channel large wood deflectors, which will help the river flow follow a more natural course within its existing channel RECONNECTING THE RODING- WEIR REMOVAL reconnecting the roding- weir removal http://https://www.thames21.org.uk/improving-rivers/roding-weir-removal-project/ Environmental flows and water resources Fisheries Habitat and biodiversity Hydromorphology 2025-01-28T15:58:19Z 2460704.1654977 2025-02-24T15:07:47Z 2460731.1304051 RECONNECTING THE RODING- WEIR REMOVAL