Desilting works at Keith Boden Wetlands in Wavell Heights are continuing as part of a staged program to improve the site’s stormwater treatment function. The project focuses on removing sediment that has accumulated over many years and has affected how effectively the wetland operates.
The current works form one part of a broader approach to maintaining and improving the site. Council’s published timeframe scheduled the project for completion by July 2026, but its webpage still listed the works as in progress as of early August.
The remaining project scope includes sediment disposal, minor edge stabilisation, removal of temporary works and the gradual restoration of water levels.
Sediment Removal Supports the Wetland’s Original Purpose
Keith Boden Wetlands was constructed at Shaw Park in 1998 to filter sediment and pollutants from stormwater before it enters Kedron Brook and, further downstream, Moreton Bay. As the wetland captures material from the surrounding catchment, sediment naturally collects within the system.
Over time, that build-up can reduce the wetland’s ability to function effectively. The current desilting work aims to remove accumulated material and improve the system’s performance.
Funding for the rehabilitation was secured for the 2025–26 financial year. Northgate Ward Cr Adam Allan advised residents in April that works were expected to begin on 25 May, subject to weather and final scheduling.
Council now describes the current phase specifically as desilting. The sediment removal forms part of a staged approach, while planning for future rehabilitation continues.
Specialised Work Within the Wetland
The project uses specialised equipment within the wetland, while access through the surrounding park is maintained where possible. A temporary track forms part of the works and provides access for construction vehicles and machinery.
The project also includes a contained work area within the wetland to manage water levels safely during sediment removal. Earlier information outlined plans to use a floating excavator within this section.
Workers will dewater the removed material before transporting it to a licensed disposal facility. The scope also includes minor stabilisation along sections of the wetland edge.
After the desilting work, crews will remove temporary infrastructure and allow rainfall to restore normal water levels gradually. These final steps form part of returning the site to its usual operating condition.
Temporary Changes Remain Around Shaw Park
Residents and park users may continue to see machinery around Keith Boden Wetlands while the project remains underway. Pumps may create daytime noise, while disturbed sediment can produce temporary odours.
Water levels may also remain lower during the works and for a short period afterwards. These temporary changes should ease once the project finishes and rainfall gradually restores normal conditions.
Access through Shaw Park will be maintained where possible during construction. Traffic control and detours will help keep pedestrians and cyclists clear of active work areas.
The project’s central purpose remains to improve the wetland’s ability to intercept sediment and other pollutants before stormwater reaches Kedron Brook and Moreton Bay. The current desilting phase addresses the immediate build-up while longer-term rehabilitation planning continues.
Published 4-Aug-2026
