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"tsid":"APP.Stor.Inst.0.Regulating", "latest_value":65096.32, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.spillway crest", "label":"Spillway Crest", "parameter":"Stor", "base_parameter":"Stor", "tsid":"APP.Stor.Inst.0.Spillway Crest", "latest_value":40960, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of conservation", "label":"Top of Conservation", "parameter":"Stor", "base_parameter":"Stor", "tsid":"APP.Stor.Inst.0.Top of Conservation", "latest_value":75900, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of dam", "label":"Top of Dam", "parameter":"Stor", "base_parameter":"Stor", "tsid":"APP.Stor.Inst.0.Top of Dam", "latest_value":81900, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of flood", "label":"Top of Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"APP.Stor.Inst.0.Top of Flood", "latest_value":75900, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of max flood", "label":"Top of Max Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"APP.Stor.Inst.0.Top of Max Flood", "latest_value":75900, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of multi-purpose", "label":"Top of Multi-Purpose", "parameter":"Stor", "base_parameter":"Stor", "tsid":"APP.Stor.Inst.0.Top of Multi-Purpose", "latest_value":75900, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of operating", "label":"Top of Operating", "parameter":"Stor", "base_parameter":"Stor", "tsid":"APP.Stor.Inst.0.Top of Operating", "latest_value":75900, "units":"ac-ft", "units_long_name":"Acre-feet" } ], "id":549939, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":242, "damLength":1200, "distance":null, "drainageArea":223, "eapId":1, "dsacAssignedDate":"2020-11-12T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2025-05-02T12:00:00.000Z", "eapLastRevDate":"2008-08-25T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"OR00624", "oldFederalId":"OR00624", "hazardId":4, "hydraulicHeight":235, "inspectionAuthorityId":0, "inspectionDate":"2024-05-14T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":42.0560106280001, "lengthOfLocks":0, "secondaryLengthOfLocks":null, "longitude":-123.114977433, "maxDischarge":93800, "maxStorage":89300, "nidHeight":242, "nidStorage":89300, "normalStorage":82200, "numberOfLocks":0, "operationalStatusDate":"2020-11-12T12:00:00.000Z", "operationalStatusId":2, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"Applegate Dam is located on the Applegate River in Jackson County, 13 miles south of Ruch, Ore. near the Oregon-California Border. The dam is located near the northern base of the Siskiyou Mountain Range. Applegate Dam is a 242-foot tall, 1300-foot long rockfill and gravel earthen embankment dam with a concrete spillway, two spillway gates, a 240-foot tall concrete multiple-level withdrawal structure, and regulating outlet. The dam was constructed from 1979 to 1981. The authorized purposes of the project are flood risk management, irrigation, fish and wildlife enhancement, water quality, and recreation. The watershed above Applegate Dam is 223 square miles and predominantly forest land. Applegate Dam regulates flood waters for areas downstream along the Applegate and Rogue including the communities of McKee Bridge, Applegate, Wilderville, and Gold Beach, Ore. \n\nApplegate Dam is operated to reduce flooding during winter and spring months by temporarily holding back inflow to the reservoir and releasing flood waters after unregulated flows subside. Applegate Reservoir is re-filled throughout the spring months as major flood season transitions into conservation season. The stored water is released to increase the summer and fall flows of Applegate River and to a lesser extent the navigable portion of the Rogue River. The releases help to provide steady flow for fish habitat and irrigation throughout drier months. The multiple-level withdrawal structure that allows for the regulation of the water temperature released from the reservoir. The gated spillway allows for the passage of large flood events that fill the available flood storage in the reservoir. The spillway has a capacity to pass a maximum flood flow of approximately 100,000 cfs. The spillway has been used to pass flood flows one time in January 1997 with a maximum discharge measured at 16,500 cfs.", "riskCharSummary":"USACE completed a risk assessment on the Applegate Dam in 2019 that characterized the life-safety risks associated with the project as Moderate. The risk assessment found the risk to be driven by an unlikely scenario in which an extreme flood causes water to flow over portions of the earthen embankment dam not designed to convey water, causing erosion and potential for breach. Applegate Dam\u2019s ability to pass extreme floods is limited to the size of its two spillway gates. When the gates are fully open, there is potential that the opening is simply not large enough to safely release the amount of water required in very large storm events. Overtopping of the dam could result in additional water flow in the river downstream, which may lead to loss of life and damage to land and property. \nApplegate Dam is located approximately 55 miles east of the Cascadia Subduction Zone, a megathrust fault along the Oregon Coast. The Cascadia Subduction Zone can produce very large, long duration earthquakes. The last Cascadia Subduction Zone earthquake occurred in the year 1700. Applegate Dam is expected to perform well in most earthquakes, including those produced by the Cascadia Subduction Zone.\n\nUSACE is confident that the Applegate Dam is well-built, well-maintained, and will continue to significantly reduce flood risks for the region. However, the dams cannot eliminate potential for flooding. Even with the presence of the flood risk management dams, extreme rainfall and snowmelt events may result in flooding in areas downstream of dams. Flooding can be caused by high flows resulting from unregulated portions of the watershed and/or high flow that must be passed through the dam outlets and spillways when reservoir storage capacities are exceeded.", "riskManagementMeasures":"The likelihood is very low for an extreme flood to occur that would overtop Applegate Dam, but the potential impacts of a dam failure are high due to the population downstream along the narrow river canyon. USACE regularly conducts routine inspections of its dams and Applegate Dam is equipped with instrumentation to monitor dam performance and seismic activity. Post-earthquake procedures are in place to inspect and evaluate earthquake damages and USACE conducts routine dam safety exercises with local Emergency Managers and first responders. Applegate Dam\u2019s Emergency Action Plan (EAP) outlines actions to be taken during an emergency. USACE will update the EAP based on recent risk assessment results and information from updated inundation maps. In addition, USACE will continue and increase its outreach to improve community awareness of flood risks and risks associated with the dam.", "riverName":"APPLEGATE RIVER", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":1, "spillwayWidth":100, "stateFedId":"OR00624", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":242, "submitDate":"2023-02-16T17:25:36.558Z", "surfaceArea":1041, "volume":2812000, "widthOfLocks":0, "secondaryWidthOfLocks":null, "yearCompleted":1980, "congDist":"Congressional District 02, Oregon", "city":"APPLEGATE", "county":"Jackson", "aiannh":null, "websiteUrl":"https://nwp.usace.afpims.mil/Locations/Rogue-River/Applegate/", "coreTypeIds":"3", "damTypeIds":"5", "fedConstructionIds":"1", "fedDesignIds":"1", "fedFundingIds":"1", "fedInspectionIds":"1", "fedOperationIds":"1", "fedOtherIds":"1", "fedOwnerIds":"1", "fedRegulatoryIds":"1", "formerNames":null, "foundationTypeIds":"1", "nonFederalDamOnFederalId":0, "designerNames":"CENWP", "otherNames":"Applegate Reservoir", "ownerNames":"USACE - Portland District", "ownerTypeIds":"3", "primaryDamTypeId":5, "primaryOwnerTypeId":3, "primaryPurposeId":9, "purposeIds":"9;12;2;4;5", "dsacId":3, "femaRegion":"10", "lastEapExcerDate":"2024-12-05T12:00:00.000Z", "dataUpdated":"2025-05-27T12:00:00.000Z", "usaceDistrict":"Portland District", "noConsequencesId":0, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":1, "damStatusId":2, "huc06":"171003", "doi_region":"CPN", "doi_region_name":"Columbia-Pacific Northwest", "doi_region_number":9, "thirtyYearAverage":71.8704, "tenthPercentile":54.8354, "ninetiethPercentile":85.0454 }, "id":48186029, "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/usace-edr/items/48186029?f=json" }, { "rel":"alternate", "type":"application/ld+json", "title":"This document as RDF (JSON-LD)", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/48186029?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/48186029?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }