USGS Scientific Investigations Report 2010–5065Channel Change and Bed-Material Transport in the Lower Chetco River, Oregon

Table 8. Sources for estimates of bedload production rates for coastal drainage basins in northern California and southern Oregon.

[Where applicable, bedload was assumed to be 20 percent of total load. Sediment production rates for this study were scaled to the contributing area at U.S. Geological Survey streamflow-gaging station 14400000, drainage area, 702 km².Abbreviations: km², square kilometer; (m³/km²)/yr, cubic meter per square kilometer per year]

Source	Area of study	Period  described	Method	Bedload production  rates  [(m³/km²)/yr]
Kelsey and Bockheim, 1994	Southern Oregon Coast,  including Chetco Bay	Holocene	Uplift rate, assuming  equilibrium	140–180
E.G. Andrews, U.S.  Geological Survey,  written commun., 2008	Northern California Rivers	1950–2006	Bedload equation	26–610
U.S. Environmental Protection Agency, 1999	Van Duzen River, California	1955–1999	Landslide volume analysis,  field mapping	80–100
Raines and Kelsey, 1991	Grouse Creek, California	1960–1989	Landslide volume analysis	130
Russell, 1994	Pistol River, Oregon	1940–1991	Landslide volume analysis	80–110
MFG, Inc., 2006	Smith River, Oregon	1932–2003	Calibrated bedload equation	40