SUPERSEDED NEGOTIATED - OPW25 0042 - REFERENCE DOCUMENT (As Published)

        FIGURE 2.5: FREEBOARD ASSESSMENT

        2.2.1.3 Channel and Culvert Scour Protection
        The maximum velocity in the proposed culvert outlet is 2.10 m/s. As such, scour protection is recommended in accordance with the
        Queensland Urban Drainage Manual. This guideline recommends rock size D50 = 200mm and extend 3.6m past the outlet.
        Velocities within the flow path are generally less than 2.0m/s, however, there a section between the foot bridge and Serenity Close, where
        the velocities are up to 2.30 m/s. It is recommended that reinforced turf is considered in this section of the channel (approx. CH150 to 170).




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Version: 0, Version Date: 01/01/1900