Sediment flushed out of Dashidaira Dam since 2001

Maximum discharge Inflow (m3/sec) Average Discharge Inflow (m3/sec) Flushing Volume (103m3) Maximum SS (mg/l) Average SS (mg/l)
2001 Flushing 333 277 590 90,000 15,000
2001 Sluicing 491 273 29,000 6700
2002 Flushing 362 215 60 22,000 4500
2003 Flushing 777 217 90 69,000 7100
2004 Flushing 356 229 280 42,000 10,000
2004 Sluicing 1152 281 16,000 7300
2005 Flushing 958 290 510 47,000 17,000
2005 Sluicing 1 835 275 90,000 16,000
2005 Sluicing 2 790 250 40,000 7300
2006 Flushing 308 246 240 27,000 5200
2006 Sluicing 1 378 203 12,000 2500
2006 Sluicing 2 685 264 27,000 5200
2006 Sluicing 3 529 196 7400 1800
2007 Flushing 418 245 120 25,000 3500
Average of Flushing 502 246 270 46,000 9100
Average of Sluicing 694 249 31,600 6700
Average of all data 598 247 270 38,800 7900