Table 6.Volumes and dry mass of dredged material envisioned over 25 years at the six locations. Location Units Total (25 Total capital Capital - Indicative Total Maintenance Typical Indicative years) (25 years) mean per Capital Maintenance - mean per maintenance maintenance year campaign (25 years) year dredging campaign interval (years) Gladstone Volume (m3) 80,000,000 72,500,000 2,900,000 6,000,000 7,500,000 300,000 1 300,000 Dry Mass (kt) n/a 58,000 2320 4800 5250 210 210 Rosslyn Bay Volume (m3) 250,000 0 0 0 250,000 10,000 3 30,000 Dry Mass (kt) n/a 0 0 0 175 7 21 Hay Point Volume (m3) 28,000,000 20,000,000 800,000 8,500,000 8,000,000 320,000 3 960,000 Dry Mass (kt) n/a 16,000 640 6800 5600 224 672 Abbot Point Volume (m3) 8,500,000 3,500,000 140,000 3,500,000 5,000,000 200,000 5 1,000,000 Dry Mass (kt) n/a 2800 112 2800 3500 140 700 Townsville Volume (m3) 24,000,000 6,900,000 276,000 3,500,000 17,100,000 684,000 1 684,000 Dry Mass (kt) n/a 5520 221 2800 11,970 479 479 Cairns Volume (m3) 20,000,000 5,000,000 200,000 5,000,000 15,000,000 600,000 1 600,000 Dry Mass (kt) n/a 4000 160 4000 10,500 420 420 Total for six Volume (m3) 165,750,000 107,900,000 4,516,000 26,500,000 52,850,000 2,114,000 n/a 3,574,000 locations Dry Mass (kt) n/a 86,320 3453 21,200 36,995 1480 2502
Table 6.Volumes and dry mass of dredged material envisioned over 25 years at the six locations. Location Units Total (25 years) Total capital (25 years) Capital - mean per year Indicative Capital campaign Total Maintenance (25 years) Maintenance - mean per year Typical maintenance dredging interval (years) Indicative maintenance campaign Gladstone Volume (m3) 80,000,000 72,500,000 2,900,000 6,000,000 7,500,000 300,000 1 300,000 Dry Mass (kt) n/a 58,000 2320 4800 5250 210 210 Rosslyn Bay Volume (m3) 250,000 0 0 0 250,000 10,000 3 30,000 Dry Mass (kt) n/a 0 0 0 175 7 21 Hay Point Volume (m3) 28,000,000 20,000,000 800,000 8,500,000 8,000,000 320,000 3 960,000 Dry Mass (kt) n/a 16,000 640 6800 5600 224 672 Abbot Point Volume (m3) 8,500,000 3,500,000 140,000 3,500,000 5,000,000 200,000 5 1,000,000 Dry Mass (kt) n/a 2800 112 2800 3500 140 700 Townsville Volume (m3) 24,000,000 6,900,000 276,000 3,500,000 17,100,000 684,000 1 684,000 Dry Mass (kt) n/a 5520 221 2800 11,970 479 479 Cairns Volume (m3) 20,000,000 5,000,000 200,000 5,000,000 15,000,000 600,000 1 600,000 Dry Mass (kt) n/a 4000 160 4000 10,500 420 420 Total for six locations Volume (m3) 165,750,000 107,900,000 4,516,000 26,500,000 52,850,000 2,114,000 n/a 3,574,000 Dry Mass (kt) n/a 86,320 3453 21,200 36,995 1480 2502
gbr-dredge-material-management-appendixf.docx