• Minimum ground level and finished floor levels (FFLs) with ground levels as close to existing levels as possible to mitigate against pluvial (cloudburst) flood risk. • A requirement for surface water flood storage volume of 2,900 cubic metres to ameliorate surface water run-off in extreme flooding events in addition to that provided within the public realm at Kennedy Spine, Centre Park Road, Monahan Road and Marina Park / Atlantic Pond. This flood storage will need to be provided across three locations, and Cork City Council will confirm the distribution of the flood volume between the three sites during 2021 prior to the publication of the Proposed Amendments. Site acquisition is likely to be required for each of the three options: – The Marina Park – River Lee Spine in the area north of Centre Park Road. This would be integrated into public open space; – The Marina Park – River Lee Spine west of Marquee Road; and – The proposed public open space to the south of the Atlantic Pond and north of Ardfoyle Convent, which will form part of the Marina Park. • The Strategy indicates that there may be a requirement for a surface water pumping station in the future to meet the challenge presented by climate change, with a site of a total c.250sqm being required to accommodate this infrastructure. SW DRAINAGE & LEVELS
The Strategy identifies a possible location for this facility on the proposed extension to the Atlantic Pond area to be a public open space / flood volume storage location. The suitability of this and other locations for the pumping station will need to be identified during the life of the Plan. 10.109 A perimeter flood defence will need to be integrated into the design for the North Docks and included in the North Docks Masterplan to be prepared. This will be based on the principle of using SUDS, public realm, embracing the river and developing amenity as part of the drainage and flood defence for the North Docks.
Minimum Ground Levels and Finished Floor Levels
10.110 To minimise storage and future-proof the proposed drainage system, it is necessary to marginally increase ground levels at low points by circa 500mm with localised maximum increases of up to 1m. This ground raising will be required over a small area of the South Docks and will ensure minimum ground levels of between 0.7m and 1m above Ordnance Datum (OD).
Proposed Drainage Catchments
Overview of Proposed Drainage Catchments
Figure 10.10a: South Docks Drainage Catchments Overview.
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Cork City Draft Development Plan 2022-2028
Volume 1 I Chapter 10
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