Tender: Foresters Lodge River Restoration and Wetland Creation – Two-Stage Floodplain, Sinuous Channel and Woody Deflectors

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An environmental contractor is sought to carry out river restoration and wetland creation works at Foresters Lodge in accordance with the Design Report. The works include creation of a benched two-stage floodplain and channel, excavation of a new sinuous second flow channel on the right-hand bank fed by hillslope drainage and higher flows via bankside scrapes, installation of in-channel woody deflectors and placement of in-channel woody material targeting spate events (typically Q4/5), excavation of scrapes and floodplain pools within the new floodplain, felling designated trees and fixing root plates/trunks into the bank to create woody deflectors that divert Q4/5 flows into the floodplain, and excavation of interconnected contoured scrapes to divert existing drains and springs into the new channel to improve onsite water retention and attenuation during high intensity rainfall. The upper bench of the two-stage floodplain is designed to activate during a Qmed event (approx. 1 in 2 year return period); combined features aim to reduce channel incision, lower erosive forces during high flows and promote sediment deposition, increasing climate resilience of the reach.