Skip Links

USGS - science for a changing world

Scientific Investigations Report 2009–5221

Estimates of Sediment Load Prior to Dam Removal in the Elwha River, Clallam County, Washington

Table 1. Suspended-sediment and streamflow data from samples collected at Elwha River above Lake Mills (12044900), Elwha River basin, Clallam County, Washington, water years 2006 and 2007.

[Streamflow: Instantaneous streamflow recorded at the streamflow-gaging station at the time of sample collection. Abbreviations: m3/s, cubic meter per second; mg/L, milligram per liter; mm, millimeter; <, less than; –, no data]

Date Time Streamflow
(m3/s)
Suspended-
sediment
concentration
(mg/L)
Percent fines
(grain size
<0.0625 mm)
11-02-05 12:58 22.4 5
11-02-05 13:03 22.4 5
12-05-05 14:26 14.4 1
12-05-05 14:26 14.4 1
112-29-05 11:00 88.1 106
05-04-06 10:20 34.8 21
05-04-06 10:25 34.8 3
05-17-06 12:08 91.5 77 70
05-17-06 12:13 91.8 78 67
11-03-06 15:26 86.7 345 64
11-03-06 15:38 86.7 366 62
11-06-06 12:00 326 6,810 78
11-06-06 12:30 320 6,770 78

1 Grab sample only.

For additional information contact:
Director, Washington Water Science Center
U.S. Geological Survey, 934 Broadway — Suite 300
Tacoma, Washington 98402
http://wa.water.usgs.gov

Part or all of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge.

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http:// pubsdata.usgs.gov /pubs/sir/2009/5221/table1.html
Page Contact Information: Contact USGS
Page Last Modified: Thursday, 10-Jan-2013 19:39:45 EST