IDAS Code responses · OPW15/0240

_____________________________________________________________________________________________________________Callaghan and Toth Pty Ltd


                                                                stringent than the standard mentioned in paragraph (a)
19.2 Prescribed tidal work that is a retaining wall,            (s 6(2) solution)                                                          N/A
revetment or seawall, is designed and constructed in a          The design and construction of the retaining wall, revetment or seawall
way to ensure it can withstand—                                 is consistent with the following standards—
(a) any tendency of overturning or sliding; and                 (a) subject to paragraph (c), a retaining wall, revetment or seawall has
(b) any other effects of waves or changes in water levels       a factor of safety of no less than 1.5;
on the retaining wall, revetment or seawall.                    (b) subject to paragraph (c), a retaining wall, revetment or seawall is
                                                                able to withstand the effect of waves, or waves and water levels,
                                                                resulting from a storm or other natural event of a magnitude that has a
                                                                2% or lower probability of occurring in any calendar year;
                                                                (c) if a relevant planning scheme standard is more stringent than the
                                                                standard mentioned in paragraph (a) or (b)—the relevant planning
                                                                scheme standard, to the extent it is more stringent than the standard
                                                                mentioned in paragraph (a) or (b).
19.3 Prescribed tidal work that is a retaining wall,            (s 6(2) solution)                                                          N/A
revetment or seawall not founded upon rock, is designed         The design and construction of the retaining wall, revetment or seawall
and constructed to protect the seaward side of retaining        is consistent with the following standards—
wall, revetment or seawall from erosion.                        (a) subject to paragraph (c), a retaining wall, revetment or seawall
                                                                provides for a sub-layer or enough filter material to ensure it is
                                                                reasonably likely to remain in place for at least 50 years;
                                                                (b) subject to paragraph (c), the bottom edge of the base of a retaining
                                                                wall, revetment or seawall is reasonably likely to prevent any adverse
                                                                effects from potential erosion of the soil under the retaining wall,
                                                                revetment or seawall for at least 50 years;
                                                                (c) if a relevant planning scheme standard is more stringent than the
                                                                standard mentioned in paragraph (a)or (b)—the relevant planning
                                                                scheme standard, to the extent it is more stringent than the standard
                                                                mentioned in paragraph (a) or (b).
19.4 Prescribed tidal work that is a retaining wall,            The design and construction of the retaining wall, revetment or seawall    N/A
revetment or seawall, is not adversely affected by              is consistent with the following standards—
hydrostatic pressure behind the retaining wall, revetment       (a) subject to paragraph (b), a retaining wall, revetment or seawall
or 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).
Design, construction and safety—wharves


IDAS Code Responses_Rising Main Works_MossmanCourttoSerenityClose                                                                                pg. 16