Most coal miners will load from mine site to 300ft coal barges(8,000tons) and drift down Mahakam River before transshipment loading to mother vessel(40,000-60,000tons) at Muara Pegah at Delta Mahakam. Muara Pegah and Muara Jawa has the deepest channels at Delta Mahakam

Location Distance fr River Mouth(Km) Depth(m) Width(m) River Mouth-Samarinda 0-46 10-30 750-850 Samarinda-Muara Kaman 46-296 12-38 420-500 Muara Kaman-Melak 296-446 8-34 350-400 Speed of river tide in Samarinda during fair weather: - Average depth = 24.4 m - Speed = 0.73 m/sec - Volume = 2200 m3/sec Rainfalll 2800mm/year - Max rainfall /day = 532mm - Max rainfall / hour = 122mm Details of Muara Pegah channel attached at the bottom of the page.