generally has relatively high value due to environmental values and existing or values to clear sufficient land for agricultural purposes is agricultural soils, of a better quality proposed uses. to dry material. Ongoing extremely limited as the than dredged material (lack of discharges of waste water material is generally fine demand for material). The material during works as part of the de grained and saline. would require a significant reduction watering process. Experiments conducted by the in its salt content for use in Environmental values of Port of Brisbane indicate that agricultural applications. surrounding areas would be silty clays because of their impacted (wetlands, creek fine-grained nature easily form systems). High use of water a crust when drying that repels for processing / washing water. Blending organic material. matter into the material (e.g. compost) can reduce such issues but there are major logistical in blending the dredge material (Rick Morton Consulting 2012). No facilities in place currently. Transport of dried material, once created would be difficult by road, would involve large amounts of rehandling and truck movements. Does not appear to be agricultural land in the area requiring clean fill. The material is suitable for the There are no significantly degraded habitats Change in natural habitat It is not technically feasible to HABITAT RESTORATION/ construction of artificial wetlands or within the Hay Point area that require types within the Great Barrier pump the dredge material
generally has relatively high value agricultural soils, of a better quality than dredged material (lack of demand for material). The material would require a significant reduction in its salt content for use in agricultural applications. due to environmental values and existing or proposed uses. values to clear sufficient land to dry material. Ongoing discharges of waste water during works as part of the de watering process. Environmental values of surrounding areas would be impacted (wetlands, creek systems). High use of water for processing / washing material. for agricultural purposes is extremely limited as the material is generally fine grained and saline. Experiments conducted by the Port of Brisbane indicate that silty clays because of their fine-grained nature easily form a crust when drying that repels water. Blending organic matter into the material (e.g. compost) can reduce such issues but there are major logistical in blending the dredge material (Rick Morton Consulting 2012). No facilities in place currently. Transport of dried material, once created would be difficult by road, would involve large amounts of rehandling and truck movements. Does not appear to be agricultural land in the area requiring clean fill. HABITAT RESTORATION/ The material is suitable for the construction of artificial wetlands or There are no significantly degraded habitats within the Hay Point area that require Change in natural habitat types within the Great Barrier It is not technically feasible to pump the dredge material
gbr-dredge-material-management-appendixa.docx