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plain, high slopes, new channel).

watercourses, including the channel bed and banks of the watercourse.

Design drainage system and stable slope grades within floodplain and realigned channel of Broadway drain to mimic overland drainage patterns and runoff contribution to the watercourse.

implementation of mitigation measures.

Addition or removal of instream organic structure in Broadway Drain by placement of fill material in existing Drain.

Design and install instream cover habitat elements (overhanging vegetation, boulders, etc.) in channel realignment of Broadway Drain to replace those removed from proposed works and enhance the newly created channel.

Some residual effect may persist over the short term until instream cover and other habitat elements become fully functional.

Excavation (L3)

Removal and exposure of topsoil and subsoils during construction of culvert extension at Tributary ‘D” and channel realignments.

Design and implement erosion and sediment controls to contain/isolate the construction zone, manage site drainage/runoff and ensure all areas draining to Broadway Drain are stabilized following construction.

Manage excess material by temporarily storing, handling and disposing of all materials generated (e.g., organics, soils, wood debris, concrete, etc.) during site preparation, construction and clean-up to prevent their entry into Broadway Drain.

Temporary stockpiles of material are to be stockpiled

No residual effects with implementation of mitigation measures.