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From 1911 to 2014, dams blocked fish passage on the lower Elwha River. The National Park Service removed the two dams as part of the Elwha Ecosystem Restoration Project. Dam removal work began in September 2011 and was completed in August 2014.", "locationStatusId":1, "elevation":null, "createDate":"2021-08-11T14:20:44+00:00", "updateDate":"2023-05-25T20:23:31+00:00", "horizontalDatum":{ "_id":"WGS84", "definition":"World Geodetic System of 1984" }, "timezone":null, "verticalDatum":null, "locationTags":[ { "id":282, "tag":"Elwha River", "createDate":"2021-08-11T14:05:37+00:00" }, { "id":399, "tag":"Elwha Surface Water Intake (ESWI)", "createDate":"2021-09-27T15:00:22+00:00" } ], "relatedLocationIds":null, "projectNames":[], "locationTypeName":"River/Stream", "timezoneName":null, "timezoneOffset":null, "locationRegionNames":[ "Pacific Northwest" ], "locationUnifiedRegionNames":[ "Columbia-Pacific Northwest" ], "catalogItems":[ { "id":"/rise/api/catalog-record/4616", "attributes":{ "_id":4616, "recordTitle":"Elwha River Sediment Monitoring Data from the Elwha Bed Load Monitoring Database", "recordDescription":"The data contained in the files are continuous bed load flux. The data are summed across the cross section and averaged over an hour. Data were collected with a calibrated surrogate sediment measurement system including 72 impact plates, mounted adjacent to each other, spanning the cross section of the Elwha River at river kilometer 5 (river mile 3.1). The following Science and Technology project numbers apply to the Elwha bed load data; 0115, 1709, 6209, 4542, 9562, and 6499.", "catalogStatusId":1, "metadataFilePath":null, "metadataStandard":{ "_id":"ISO", "definition":"International Standards Organization (ISO) 19115-1:2014 metadata content standard, and ISO 19139:2007 metadata implementation standard", "createDate":"2018-11-20T13:25:52+00:00" }, "createDate":"2021-09-27T15:16:11+00:00", "updateDate":"2026-01-27T17:00:04+00:00", "programNames":[ "Science and Technology Program" ], "generationEffort":"Elwha Bed Load Monitoring", "generationEffortId":82, "subTheme":{ "_id":25, "subTheme":"Sediment and Sedimentation", "definition":"Relating to the study of sediment accumulation and movement, chemical, physical, biological, and radiological characteristics of sediment, and management of sediment loads.", "createDate":"2019-10-08T15:05:05+00:00" }, "tags":[ "Sediment Transport", "Bedload", "Surrogate Measurements", "Dam Removal" ], "themes":[ "Environmental" ] }, "type":"CatalogRecord", "relationships":{ "location":{ "data":[ { "id":"/rise/api/location/3694", "type":"Location" } ] }, "catalogItems":{ "data":[ { "id":"/rise/api/catalog-item/11445", "type":"CatalogItem" } ] } } }, { "id":"/rise/api/catalog-item/11445", "attributes":{ "_id":11445, "itemTitle":"Elwha River hourly Bedload Flux greater than or equal to 16mm Time Series Data", "itemDescription":"Elwha River surrogate bed load continuous bed load measurements for Water Years 2013 through 2019. In 2008 and 2009, a series of bed load impact plates was installed across a channel spanning weir on the Elwha River, Washington. This is the first permanent installation of its kind in North America and one of the largest anywhere. The purpose of this system is to measure\r\ncoarse bed load during and after the removal of Elwha and Glines Canyon Dams. It is estimated that 21 million cubic meters of sediment have accumulated behind both dams, with 45\u201350% of the total accumulated volume expected to be eroded through natural processes. The impact plate system consists of 72 plates installed at a diversion weir downstream from both dams and 5 km upstream from the river mouth. Of the 72 plates, 46 are instrumented with a geophone and 26 with an accelerometer. The data is structured such that zeros indicate no bed load activity. If there is no data for a particular date-time then the computers were not recording data at that time. There are also missing periods where there is no date and time, also indicating a computer or power malfunction.\r\nReferences: \r\nHilldale, R.C., Carpenter, W.O., Goodwiller, G., Carpenter, J.P., and Randle, TJ (2014). \"Installation of impact plates to continuously measure bed load: Elwha River, Washington, USA\", J. Hydr. Engnr. Vol. 141, Issue 3, https://doi.org/10.1061/(ASCE)HY.1943-7900.0000975\r\nKuhnle, R.A., Wren, D.G., Hilldale, R.C., Goodwiller, B.T., and Carpenter, W.O. (2017). \"Laboratory calibration of impact plates for measuring gravel bed load size and mass\", J. Hydr. Engnr. Vol. 143, Issue 12, DOI: 10.1061/(ASCE)HY.1943-7900.0001391.\r\nHilldale, R.C., Carpenter, W.O., Pittman, S., Goodwiller, B., and Dombroski, D. (2019). \"Final calibration of the Elwha impact plate system\", Proc. SedHyd: Sedimentation and Hydrologic Modeling, , 24-28 June 2019, Reno, NV. https://www.sedhyd.org/2019/proceedings/SEDHYD_Proceedings_2019_Volume5.pdf\r\nOther References: search Elwha bed load", "itemRecordStatusId":1, "isModeled":false, "hasProfile":false, "disclaimer":"No warranty is expressed or implied regarding the usefulness or completeness of the information contained in this report. References to commercial products do not imply endorsement by the Bureau of Reclamation and may not be used for advertising or promotional purposes.", "sourceCode":"elwhabedload", "locationSourceCode":"Elwha", "externalDataUrl":null, "parameterSourceCode":"Bedload", "modelNameSourceCode":null, "temporalStartDate":"2012-12-19T22:00:00+00:00", "temporalEndDate":"2019-04-01T07:00:00+00:00", "spatialShortDescription":null, "publicationAuthor":null, "publicationEditor":null, "publicationPublisher":null, "publicationPublisherLocation":null, "publicationFirstPublicationDate":null, "publicationPeriodicalName":null, "publicationSerialNumber":null, "publicationDoi":null, "publicationVolume":null, "publicationIssue":null, "publicationSection":null, "publicationStartPage":null, "publicationEndPage":null, "createDate":"2021-09-27T10:48:53+00:00", "itemType":{ "_id":"DATA", "definition":"Data file", "createDate":"2018-11-28T14:19:59+00:00" }, "matrix":{ "_id":31, "matrix":"Sediment", "definition":"Solid material made up of loose particles that is moved by water, air, or glaciers and deposited in a new location. Can consist of rocks, minerals, and the remains of plants and animals. Includes both suspended and bedload sediment transported by water.", "createDate":"2021-09-27T12:21:04+00:00" }, "spatialGeometry":null, "spatialResolution":null, "spatialTransformation":null, "spatialOpenDataURL":null, "metadataFilePath":null, "binaryFilePath":null, "updateFrequency":{ "_id":14, "updatefrequency":"not planned", "definition":"there are no plans to update the data", "createDate":"2018-11-14T15:17:58+00:00" }, "updateDate":"2024-09-24T12:52:41+00:00", "verticalDatum":null, "dataStructure":"Time series", "itemStructureId":1, "parameterGroup":"Bedload", "parameterId":1656, "parameterName":"Bedload Flux greater than or equal to 16mm", "parameterUnit":"kg", "parameterTimestep":"hourly", "parameterTransformation":"average" }, "type":"CatalogItem", "relationships":{ "catalogRecord":{ "data":[ { "id":"/rise/api/catalog-record/4616", "type":"CatalogRecord" } ] }, "parameter":{ "data":[ { "id":"/rise/api/parameter/1656", "type":"Parameter" } ] } } }, { "id":"/rise/api/catalog-record/8010", "attributes":{ "_id":8010, "recordTitle":"Elwha River Sediment and Sedimentation Data from Elwha Dam Removal", "recordDescription":"Results from six years of an interagency, adaptive sediment management program for the removal of Elwha and Glines Canyon dams including: (1) physical changes to the reservoirs and downstream river channel resulting from dam removal, (2) effects of dam removal on downstream water quality (sediment loads) and flood stage, (3) dam removal and reservoir drawdown methods, (4) modeling accomplished to support the EIS and adaptive management program, (5) dam operational effects on downstream discharge prior to dam removal, and (6) a literature review on potential effects of dam removal on the City of Port Angeles Ranney Well.", "catalogStatusId":1, "metadataFilePath":null, "metadataStandard":{ "_id":"ISO", "definition":"International Standards Organization (ISO) 19115-1:2014 metadata content standard, and ISO 19139:2007 metadata implementation standard", "createDate":"2018-11-20T13:25:52+00:00" }, "createDate":"2024-01-30T15:13:52+00:00", "updateDate":"2026-01-27T16:59:30+00:00", "programNames":[], "generationEffort":"Elwha Dam Removal", "generationEffortId":391, "subTheme":{ "_id":25, "subTheme":"Sediment and Sedimentation", "definition":"Relating to the study of sediment accumulation and movement, chemical, physical, biological, and radiological characteristics of sediment, and management of sediment loads.", "createDate":"2019-10-08T15:05:05+00:00" }, "tags":[ "Reservoir Sedimentation", "Monitoring", "Dam Removal", "Adaptive Management" ], "themes":[ "Environmental" ] }, "type":"CatalogRecord", "relationships":{ "location":{ "data":[ { "id":"/rise/api/location/3694", "type":"Location" } ] }, "catalogItems":{ "data":[ { "id":"/rise/api/catalog-item/128610", "type":"CatalogItem" } ] } } }, { "id":"/rise/api/catalog-item/128610", "attributes":{ "_id":128610, "itemTitle":"Adaptive Sediment Management Program Final Report for the Elwha River Restoration Project", "itemDescription":"This technical report documents final results from six years of an interagency, adaptive sediment management program for the removal of Elwha and Glines Canyon dams including: (1) physical changes to the reservoirs and downstream river channel resulting from dam removal, (2) effects of dam removal on downstream water quality (sediment loads) and flood stage, (3) dam removal and reservoir drawdown methods (Appendix A), (4) modeling accomplished to support the EIS and adaptive management program (Appendix B), (5) dam operational effects on downstream discharge prior to dam removal (Appendix C), and (6) a literature review on potential effects of dam removal on the City of Port Angeles Ranney Well (Appendix D).", "itemRecordStatusId":1, "isModeled":false, "hasProfile":false, "disclaimer":"The Bureau of Reclamation assumes no responsibility or liability for any errors or omissions in the content of this data. The information contained in this data is provided on an \"as is\" basis with no guarantees of completeness, accuracy, usefulness or timeliness and without any warranties of any kind whatsoever, express or implied. The Bureau of Reclamation does not warrant that this data and any information or material downloaded from the data, will be uninterrupted, error-free, omission-free or free of virus or other harmful items.", "sourceCode":null, "locationSourceCode":null, "externalDataUrl":null, "parameterSourceCode":null, "modelNameSourceCode":null, "temporalStartDate":null, "temporalEndDate":null, "spatialShortDescription":null, "publicationAuthor":"Jennifer Bountry, Timothy Randle, Andrew Ritchie", "publicationEditor":null, "publicationPublisher":"Bureau of Reclamation", "publicationPublisherLocation":"Denver, CO, USA", "publicationFirstPublicationDate":"2018-02-01T12:00:00+00:00", "publicationPeriodicalName":null, "publicationSerialNumber":null, "publicationDoi":null, "publicationVolume":null, "publicationIssue":null, "publicationSection":null, "publicationStartPage":null, "publicationEndPage":null, "createDate":"2024-02-02T14:47:06+00:00", "itemType":{ "_id":"RPRT", "definition":"Report", "createDate":"2018-11-28T14:19:59+00:00" }, "matrix":{ "_id":18, "matrix":"N/A", "definition":"Matrix is not applicable to this item", "createDate":"2020-03-26T13:58:55+00:00" }, "spatialGeometry":null, "spatialResolution":null, "spatialTransformation":null, "spatialOpenDataURL":null, "metadataFilePath":null, "binaryFilePath":"https://data.usbr.gov/rise/content-rise-public/rise/catalog-item/binary/SRH-2018-13_Adaptive%20Sediment%20Management%20Program_Elwha_Final_508.pdf", "updateFrequency":{ "_id":14, "updatefrequency":"not planned", "definition":"there are no plans to update the data", "createDate":"2018-11-14T15:17:58+00:00" }, "updateDate":"2025-11-19T21:08:04+00:00", "verticalDatum":null, "dataStructure":"Uploaded file(s)", "itemStructureId":3, "parameterGroup":null, "parameterId":null, "parameterName":null, "parameterUnit":null, "parameterTimestep":null, "parameterTransformation":null }, "type":"CatalogItem", "relationships":{ "catalogRecord":{ "data":[ { "id":"/rise/api/catalog-record/8010", "type":"CatalogRecord" } ] }, "parameter":{ "data":[] } } } ], "name":"Elwha River" }, "id":3694, "links":[ { "type":"application/json", "rel":"root", "title":"The landing page of this server as JSON", "href":"https://api.wwdh.internetofwater.app?f=json" }, { "type":"text/html", "rel":"root", "title":"The landing page of this server as HTML", "href":"https://api.wwdh.internetofwater.app?f=html" }, { "rel":"self", "type":"application/geo+json", "title":"This document as JSON", "href":"https://api.wwdh.internetofwater.app/collections/rise-edr/items/3694?f=json" }, { "rel":"alternate", "type":"application/ld+json", "title":"This document as RDF (JSON-LD)", "href":"https://api.wwdh.internetofwater.app/collections/rise-edr/items/3694?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/rise-edr/items/3694?f=html" }, { "rel":"collection", "type":"application/json", "title":"USBR Reclamation Information Sharing Environment (RISE)", "href":"https://api.wwdh.internetofwater.app/collections/rise-edr" } ] }