Enclosure 4 - Schedule 4a

 19.4 Prescribed tidal work that is a retaining   The design and construction of the retaining wall, revetment or     Not applicable
 wall, revetment or seawall, is not adversely     seawall is consistent with the following standards—
 affected by hydrostatic pressure behind the      (a) subject to paragraph (b), a retaining wall, revetment or
 retaining wall, revetment or seawall.            seawall provides for drainage holes, and suitable filter material
                                                  behind the holes, to relieve any hydrostatic pressure behind the
                                                  retaining wall, revetment or seawall;
                                                  (b) if a relevant planning scheme standard is more stringent than
                                                  the standard mentioned in paragraph (a)—the relevant planning
                                                  scheme standard, to the extent it is more stringent than the
                                                  standard mentioned in paragraph (a).




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Coastal Protection and Management Regulation 2003 – Schedule 4A – IDAS code for the development of prescribed tidal work