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"tsid":"Beaver_Dam.Energy-Gen_Plant.Total.1Hour.1Hour.CCP-Comp", "label":"Power Generation", "base_parameter":"Energy", "parameter":"Energy-Gen_Plant", "unit":"MWh", "unit_long_name":"Megawatt-hours", "latest_time":"2026-04-14T22:00:00Z", "latest_value":0.0, "delta24h":null, "sort_order":15, "results":null } ], "name":"Beaver Dam", "hasResopsAverages":"true", "nidId":"AR00174", "nidid":"", "levels":[ { "slug":"elev.bottom of normal", "label":"Bottom of Normal", "parameter":"Elev-Pool", "base_parameter":"Elev", "tsid":"Beaver_Dam.Elev-Pool.Inst.0.Bottom of Normal", "latest_value":1077, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.streambed", "label":"Streambed", "parameter":"Elev-Pool", "base_parameter":"Elev", "tsid":"Beaver_Dam.Elev-Pool.Inst.0.Streambed", "latest_value":914, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of conservation", "label":"Top of Conservation", "parameter":"Elev-Pool", "base_parameter":"Elev", "tsid":"Beaver_Dam.Elev-Pool.Inst.0.Top 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"label":"Top of Dam", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Beaver_Dam.Elev.Inst.0.Top of Dam", "latest_value":1142, "units":"ft", "units_long_name":"Feet" }, { "slug":"stor.bottom of normal", "label":"Bottom of Normal", "parameter":"Stor-Res", "base_parameter":"Stor", "tsid":"Beaver_Dam.Stor-Res.Inst.0.Bottom of Normal", "latest_value":726800, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of conservation", "label":"Top of Conservation", "parameter":"Stor-Res", "base_parameter":"Stor", "tsid":"Beaver_Dam.Stor-Res.Inst.0.Top of Conservation", "latest_value":1660431, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of flood", "label":"Top of Flood", "parameter":"Stor-Res", "base_parameter":"Stor", "tsid":"Beaver_Dam.Stor-Res.Inst.0.Top of Flood", "latest_value":1947382, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of inactive", "label":"Top of Inactive", "parameter":"Stor-Res", "base_parameter":"Stor", "tsid":"Beaver_Dam.Stor-Res.Inst.0.Top of Inactive", "latest_value":732492, "units":"ac-ft", "units_long_name":"Acre-feet" } ], "id":549771, "associatedStructuresCount":1, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":228, "damLength":720, "distance":null, "drainageArea":1186, "eapId":1, "dsacAssignedDate":"2018-02-05T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2024-05-02T12:00:00.000Z", "eapLastRevDate":"2023-05-10T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"AR00174", "oldFederalId":"AR00174", "hazardId":4, "hydraulicHeight":216, "inspectionAuthorityId":0, "inspectionDate":"2020-07-29T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":36.422211632, "lengthOfLocks":0, "secondaryLengthOfLocks":null, "longitude":-93.847623254, "maxDischarge":342000, "maxStorage":1952000, "nidHeight":228, "nidStorage":1952000, "normalStorage":1652000, "numberOfLocks":0, "operationalStatusDate":"2018-02-05T12:00:00.000Z", "operationalStatusId":2, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The U.S. Army Corps of Engineers (USACE) completed construction of Beaver Dam in May 1965. Beaver Lake and Dam is a multiple-purpose power generation and flood risk management project and is a major unit in a comprehensive plan for development of the water resources of the White River Basin in Missouri and Arkansas. Beaver Dam impounds permanent inactive and conservation pools and a temporary flood storage pool to provide flood control, hydroelectric power, water supply, and other benefits in the White River basin. The project consists of a combination concrete gravity and embankment-type dam, a hydroelectric generating station, and three dikes in saddle areas.\n\nBeaver Dam and Lake are located in the White River Basin with a majority of the conservation pool in Benton and Carroll Counties, Arkansas. Beaver Dam is located on the White River at river mile 609.0 in Carroll County approximately six miles northwest of Eureka Springs in northwest Arkansas and approximately seventeen miles east of Rogers, Arkansas. The lake covers areas in Carroll, Benton, Madison and Washington Counties.", "riskCharSummary":"USACE completed a risk assessment for Beaver Dam in August of 2016 that characterizes the risk of the project as moderate. The dam significantly reduces the risk of flooding to surrounding communities. However, it does not entirely eliminate the risk. Although Beaver Dam has historically performed well, extreme rainfall events may cause areas downstream to be flooded. Even when the dam operates as intended, downstream flooding could still occur if a very large rainfall event were to require unusually large quantities of water to be released through the dam gates. In extreme cases, this flooding could be similar to what was experienced prior to the dam\u2019s construction. Beaver Dam has an Emergency Action Plan and Risk Reduction Plan in place to lower the risk of life loss if any of these scenarios occurred.", "riskManagementMeasures":"USACE performs ongoing inspection, maintenance, and monitoring activities to ensure the integrity of Beaver Dam and to reduce risk to downstream communities. The frequency of inspection and monitoring increases during high water events. USACE regularly updates the Emergency Action Plan for the dam and performs emergency response exercises with federal, state, and local emergency managers to remain prepared to respond to flood events affecting the dam. USACE also closely follows rainfall forecasts to determine when high water events may occur to provide information for any necessary flood warnings.", "riverName":"WHITE", "separateStructuresCount":1, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":2, "spillwayWidth":0, "stateFedId":"AR00174", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":27, "submitDate":"2023-04-19T00:00:00.000Z", "surfaceArea":28220, "volume":2480000, "widthOfLocks":0, "secondaryWidthOfLocks":null, "yearCompleted":1963, "congDist":"Congressional District 03, Arkansas", "city":"BEAVER", "county":"Carroll", "aiannh":null, "websiteUrl":"https://www.swl.usace.army.mil/Missions/Recreation/Lakes/Beaver-Lake/Dam-and-Lake-Information/", "coreTypeIds":"3", "damTypeIds":"11;8;9", "fedConstructionIds":"1", "fedDesignIds":"1", "fedFundingIds":"1", "fedInspectionIds":"1", "fedOperationIds":"1", "fedOtherIds":"1", "fedOwnerIds":"1", "fedRegulatoryIds":"1", "formerNames":null, "foundationTypeIds":"1", "nonFederalDamOnFederalId":0, "designerNames":"CESWL", "otherNames":"Beaver Lake", "ownerNames":"USACE - Little Rock District", "ownerTypeIds":"3", "primaryDamTypeId":11, "primaryOwnerTypeId":3, "primaryPurposeId":9, "purposeIds":"9;5;6;8", "dsacId":3, "femaRegion":"6", "lastEapExcerDate":"2024-08-26T12:00:00.000Z", "dataUpdated":"2025-05-29T12:00:00.000Z", "usaceDistrict":"Little Rock District", "noConsequencesId":0, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":1, "damStatusId":2, "huc06":"110100", "doi_region":null, "doi_region_name":"Mississippi Basin", "doi_region_number":4, "thirtyYearAverage":2066.5045, "tenthPercentile":1918.4315, "ninetiethPercentile":2299.5215 }, "id":1615150, "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/1615150?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/1615150?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/1615150?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }