{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -95.77694, 37.2775 ] }, "properties":{ "provider":"SWT", "code":"ELKC", "slug":"elkc", "elevation":742.0, "horizontal_datum":"WGS84", "vertical_datum":"NGVD29", "state":"KS", "kind":"PROJECT", "nearest_city":"Sycamore, KS", "public_name":"Elk City Lake", "location_code":5244051, "nsid":null, "aliases":{ "NIDID":"KS00002", "CWMS Standard Naming":"ELKC", "CWMS Legacy Naming":"ELKC", "NWS Handbook 5 ID":"ECLK1", "USGS Station Number":"07170050", "DCP Platform ID":"CE60509C" }, "timeseries":[ { "tsid":"ELKC.Elev.Inst.1Hour.0.Ccp-Rev", "label":"Elevation", "base_parameter":"Elev", "parameter":"Elev", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T22:00:00Z", "latest_value":796.2, "delta24h":null, "sort_order":1, "results":null }, { "tsid":"ELKC.Flow-Res In.Ave.~8Hours.8Hours.Rev-Ccp", "label":"Inflow", "base_parameter":"Flow", "parameter":"Flow-Res In", "unit":"cfs", 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"id":550331, "associatedStructuresCount":2, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":107, "damLength":4840, "distance":null, "drainageArea":634, "eapId":1, "dsacAssignedDate":"2016-12-27T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2025-02-11T12:00:00.000Z", "eapLastRevDate":"2025-03-26T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"KS00002", "oldFederalId":"KS00002", "hazardId":4, "hydraulicHeight":102, "inspectionAuthorityId":0, "inspectionDate":"2025-04-21T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":37.2772000000001, "lengthOfLocks":0, "secondaryLengthOfLocks":null, "longitude":-95.78786, "maxDischarge":120800, "maxStorage":850405, "nidHeight":107, "nidStorage":850405, "normalStorage":46122, "numberOfLocks":0, "operationalStatusDate":"2016-12-27T12:00:00.000Z", "operationalStatusId":1, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The United States Army Corps of Engineers (USACE) completed construction of Elk City Dam and Levee in 1966 with the primary purpose to reduce flooding in Elk City and downstream communities as well as water supply, water quality, recreation, and fish and wildlife. Elk City Dam is located on the Elk River, a tributary of the Verdigris River on the northwest edge of Independence, Kansas. Elk City Dam consists of an earth-fill embankment, an intake and conduit for routine releases with a water supply pipe, an earthen dike, and a separate ungated auxiliary spillway. Associated with the dam is Elk City Levee which is a combination of 3 levee sections protecting the city of Elk City from the backwater of Elk City Lake.", "riskCharSummary":"USACE completed a risk assessment in February 2016 and classified the risk of Elk City Dam as low. This classification is based both on the low probability of failure and the low population at risk downstream. The primary risk of failure is erosion along the conduit that passes through the earthen dam. This would be a slow-to-develop failure. If failure occurred during a rare high pool event, flooding in Independence and Coffeyville, Kansas as well as rural areas along the Elk River and the Verdigris River resulting in loss of life and downstream economic impacts. \nThere are also flood risks associated with normal operation of the dam due to releases from the ungated spillway during a large flood. There would be advanced warning of a large flood of this magnitude, but life loss is would still be possible given the extent of flooding.", "riskManagementMeasures":"USACE is taking several actions to manage and reduce the risk that Elk City Dam poses to communities. Along with routine inspections and surveys additional efforts include establishing emergency rock and sand stockpiles, emergency exercises, annual updates to the Emergency Action Plan, and development of a communication plan to communicate dam risks. \nAdditionally, there are numerous activities that USACE conducts on a day-to-day basis to help manage risk. The dam is well maintained through continuous operations and maintenance activities and USACE conducts detailed inspections of the dam during both normal lake levels and during flood events to ensure the integrity of the structure. Lastly, the dam has instrumentation and monitoring system to allow USACE staff to evaluate the dam for changing conditions.", "riverName":"ELK RIVER", "separateStructuresCount":1, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":3, "spillwayWidth":400, "stateFedId":"KS00002", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":107, "submitDate":"2023-08-09T19:19:07.696Z", "surfaceArea":4440, "volume":4066000, "widthOfLocks":0, "secondaryWidthOfLocks":null, "yearCompleted":1966, "congDist":"Congressional District 02, Kansas", "city":"INDEPENDENCE", "county":"Montgomery", "aiannh":null, "websiteUrl":"https://www.swt.usace.army.mil/Locations/Tulsa-District-Lakes/Kansas/Elk-City-Lake/", "coreTypeIds":"3", "damTypeIds":"8", "fedConstructionIds":"1", "fedDesignIds":"1", "fedFundingIds":"1", "fedInspectionIds":"1", "fedOperationIds":"1", "fedOtherIds":"1", "fedOwnerIds":"1", "fedRegulatoryIds":"1", "formerNames":null, "foundationTypeIds":"1", "nonFederalDamOnFederalId":0, "designerNames":"CESWT", "otherNames":"Elk City Lake", "ownerNames":"USACE - Tulsa District", "ownerTypeIds":"3", "primaryDamTypeId":8, "primaryOwnerTypeId":3, "primaryPurposeId":9, "purposeIds":"9;12;5;8", "dsacId":4, "femaRegion":"7", "lastEapExcerDate":"2025-02-11T12:00:00.000Z", "dataUpdated":"2025-07-15T12:00:00.000Z", "usaceDistrict":"Tulsa District", "noConsequencesId":0, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":1, "damStatusId":2, "huc06":"110701", "doi_region":"MB", "doi_region_name":"Missouri Basin", "doi_region_number":5, "thirtyYearAverage":56.1852, "tenthPercentile":37.1552, "ninetiethPercentile":88.7442 }, "id":5244051, "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/5244051?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/5244051?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/5244051?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }