Christopher A Curran Christopher S Magirl Jennifer A Bountry Timothy J Randle 2018 Comma-separated values (CSV) spreadsheet data release doi:10.5066/F7PG1QWC Pacific Coastal and Marine Science Center, Santa Cruz, California U.S. Geological Survey https://doi.org/10.5066/F7PG1QWC https://www.sciencebase.gov/catalog/file/get/5a136e3de4b09fc93dce6824 Andrew C Ritchie Christopher A Curran Christopher S Magirl Jennifer A Bountry Robert C Hilldale Timothy J Randle Jefferey J Duda 2018 data release doi:10.5066/F7PG1QWC Pacific Coastal and Marine Science Center, Santa Cruz, California U.S. Geological Survey https://doi.org/10.5066/F7PG1QWC Sediment inputs to Lake Mills, on the Elwha River, Washington, were measured from 1927 to 2016. These measurements represent the annual total sediment load, in tonnes per year, that were input into Lake Mills and partially trapped by Glines Canyon dam. The sediment was allowed to erode and be transported down-river by the removal of the Glines Canyon and Elwha dams during 2011 to 2014. The measurements were taken as part of a study investigating the river channel's morphological responses to the removal of two large dams - the Elwha River and Glines Canyon dams. Data were obtained to assess the morphological and sediment budget responses following the removal of two dams in the Elwha River. These data are intended for science researchers, students, policy makers, and the general public. These data can be used with geographic information systems or other software to identify topographic features. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. 19270930 20160930 ground condition Complete As needed -123.614549 -123.541697 48.145105 47.959409 USGS Metadata Identifier USGS:5a136e3de4b09fc93dce6824 USGS Thesaurus field inventory and monitoring time series datasets river systems river reaches sedimentology sediment transport sedimentation unconsolidated deposits suspended material (water) ISO 19115 Topic Category inlandWaters Marine Realms Information Bank (MRIB) keywords river channel river bank sediment deposition Data Categories for Marine Planning Substrate None U.S. Geological Survey USGS Coastal and Marine Geology Program CMGP Pacific Coastal and Marine Science Center PCMSC U.S. Bureau of Reclamation USBR Geographic Names Information System Elwha River State of Washington Lake Mills (historical) Lake Aldwell (historical) Elwha Dam (historical) Glines Canyon Dam (historical) none USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey (USGS) and the U.S. Bureau of Reclamation as the originators of the dataset and in products derived from these data. Christopher A Curran U.S. Geological Survey, Washington Water Science Center mailing and physical

934 Broadway

Tacoma WA 98402 United States 253-552-1614 ccurran@usgs.gov Data collection was funded by U.S. Geological Survey, Environmental Protection Agency, National Park Service, and U.S. Bureau of Reclamation Christopher S. Magirl Robert C. Hilldale Christopher A. Curran Jeffrey J. Duda Timothy D. Straub Marian Domanski James R. Foreman 2015 http://www.sciencedirect.com Geomorphology, v. 246, p. 669-686 https://doi.org/10.1016/j.geomorph.2014.12.032 Dallas Childers David L. Kresch Steven A. Gustafson Timothy J. Randle James T. Melena Brian Cluer 2000 Water-Resources Investigations Report 99-4215 Reston, VA U.S. Geological Survey Christopher A. Curran Christopher P. Konrad Johnna L. Higgins Mark K. Bryant 2009 Scientific Investigations Report 2009-5221 Reston, VA U.S. Geological Survey Data values fall within expected range. Data values fall within expected range. Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. No formal positional accuracy tests were conducted No formal positional accuracy tests were conducted Total upstream sediment load was estimated using measurements at USGS gauge 12044900 above Lake Mills and discharge-related empirical relationships derived from sediment measurements from water years 1994--1998 and 2006--2007 (Childers, 2000; Curran and others, 2009; Magirl and others, 2015). The location of the gauge was: north latitude 47 degrees 58'13" and west longitude 123 degrees 35'22", in NE 1/4 NE 1/4 Section 32, Township 29 North, Range 7 West, in Clallam County, Hydrologic Unit 17110020, Olympic National Park, on right bank upstream from Cat Creek, 2.5 mi above site of Glines Canyon Dam (removed), 12.5 mi southwest of Port Angeles, and at river mile 16.0. Drainage area is 198 square miles. 2017 Corrected name of theme keyword thesaurus from ISO 19115 Topic Categories to Category. 20180717 Susan A Cochran U.S. Geological Survey, Pacific Coastal and Marine Science Center mailing and physical

2885 Mission St.

Santa Cruz CA 95060 United States 831-460-7545 scochran@usgs.gov Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed. 20201019 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Data were collected at the USGS gaging station 12044900, on the Elwha River, northern Washington state, 2.5 miles upstream of the former Glines Canyon Dam. Coordinates of the station were: latitude 47.971229 and longitude -123.591546. point ElwhaRiver_LakeMillsSedimentInputs_1926to2016.csv Upstream sediment contribution measurements to Lake Mills. Producer defined End of WY End of water year (October 1 to September 30) in which measurement was calculated. Producer defined 1927 2016 Water year Date Date to which the measurement corresponds, in mm/dd/yyyy format. Producer defined. 09/30/1927 09/30/2016 Corrected Annual Total Sediment Load (tonnes/yr) Calculated upstream sediment contribution to Lake Mills, in tonnes per year. Producer defined. 14201 1810894 Tonnes per year U.S. Geological Survey - ScienceBase mailing and physical

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov data are downloadable in .csv format (Elwha_LakeMillsSedimentInputs_1926to2016.csv) along with CMGDS FGDC-compliant metadata. Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. csv Microsoft Excel 2016 MSO (16.0.4549.1000) 64-bit zip file contains the csv table and associated metadata 0.004 https://www.sciencebase.gov/catalog/file/get/5a136e3de4b09fc93dce6824 https://doi.org/10.5066/F7PG1QWC Data can be downloaded via the Internet None The downloadable data file is available in comma-separated values (CSV) spreadsheet format. Text editing software can be used to open the file, as well as spreadsheet programs, such as Microsoft Excel. 20201019 Andrew C Ritchie U.S. Geological Survey, Pacific Coastal and Marine Science Center mailing and physical

2885 Mission Street

Santa Cruz CA 95060 United States 831-460-7454 aritchie@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998