{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -96.25167, 36.15167 ] }, "properties":{ "provider":"SWT", "code":"KEYS", "slug":"keys", "elevation":615.23, "horizontal_datum":"NAD83", "vertical_datum":"NGVD29", "state":"OK", "kind":"PROJECT", "nearest_city":"Sand Springs, OK", "public_name":"Keystone Lake", "location_code":5502051, "nsid":null, "aliases":{ "NWS Handbook 5 ID":"KEYO2", "CWMS Standard Naming":"KEYS", "CWMS Legacy Naming":"KEYS", "USGS Station Number":"07164200", "DCP Platform ID":"CE609B50", "NIDID":"OK10309" }, "timeseries":[ { "tsid":"KEYS.Stor.Inst.1Hour.0.Ccp-Rev", "label":"Conservation Storage", "base_parameter":"Stor", "parameter":"Stor", "unit":"ac-ft", "unit_long_name":"Acre-feet", "latest_time":"2026-04-14T22:00:00Z", "latest_value":432671.05, "delta24h":null, "sort_order":13, "results":null }, { "tsid":"KEYS.Stor.Inst.1Hour.0.Ccp-Rev", "label":"Flood Storage", "base_parameter":"Stor", "parameter":"Stor", 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"latest_value":2368140, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.spillway crest", "label":"Spillway Crest", "parameter":"Stor", "base_parameter":"Stor", "tsid":"KEYS.Stor.Inst.0.Spillway Crest", "latest_value":375400, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of conservation", "label":"Top of Conservation", "parameter":"Stor", "base_parameter":"Stor", "tsid":"KEYS.Stor.Inst.0.Top of Conservation", "latest_value":400983.85, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of constant conservation", "label":"Top of Constant Conservation", "parameter":"Stor", "base_parameter":"Stor", "tsid":"KEYS.Stor.Inst.0.Top of Constant Conservation", "latest_value":440420, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of dam", "label":"Top of Dam", "parameter":"Stor", "base_parameter":"Stor", "tsid":"KEYS.Stor.Inst.0.Top of Dam", "latest_value":2720340, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of flood", "label":"Top of Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"KEYS.Stor.Inst.0.Top of Flood", "latest_value":1473504.28, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of inactive", "label":"Top of Inactive", "parameter":"Stor", "base_parameter":"Stor", "tsid":"KEYS.Stor.Inst.0.Top of Inactive", "latest_value":178628.52, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of induced surcharge", "label":"Top of Induced Surcharge", "parameter":"Stor", "base_parameter":"Stor", "tsid":"KEYS.Stor.Inst.0.Top of Induced Surcharge", "latest_value":1639135, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of normal", "label":"Top of Normal", "parameter":"Stor", "base_parameter":"Stor", "tsid":"KEYS.Stor.Inst.0.Top of Normal", "latest_value":431920, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of power", "label":"Top of Power", "parameter":"Stor", "base_parameter":"Stor", "tsid":"KEYS.Stor.Inst.0.Top of Power", "latest_value":440420, "units":"ac-ft", "units_long_name":"Acre-feet" } ], "id":550086, "associatedStructuresCount":1, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":121, "damLength":4600, "distance":null, "drainageArea":74506, "eapId":1, "dsacAssignedDate":"2024-02-21T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2025-01-30T12:00:00.000Z", "eapLastRevDate":"2024-04-16T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"OK10309", "oldFederalId":"OK10309", "hazardId":4, "hydraulicHeight":116, "inspectionAuthorityId":0, "inspectionDate":"2022-02-09T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":36.1498908890001, "lengthOfLocks":0, "secondaryLengthOfLocks":null, "longitude":-96.252972466, "maxDischarge":939000, "maxStorage":1672613, "nidHeight":121, "nidStorage":1672613, "normalStorage":505381, "numberOfLocks":0, "operationalStatusDate":"2023-11-08T12:00:00.000Z", "operationalStatusId":2, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The United States Army Corps of Engineers (USACE) completed construction of Keystone Dam in 1964 with the primary purpose to reduce flooding in downstream communities. Keystone Dam is located on the Arkansas River about 15 miles west of Tulsa. During large storm events, the dam holds back excess water to reduce flooding downstream. After the storm passes and the Arkansas River level recedes, the water can be safety released into the river. Water storage and releases are managed by a large gated spillway. This spillway is flanked on each side by concrete dam sections and earthen embankments. The project also includes a hydroelectric power plant that began operating in 1968 that generates power for the community. In addition to the power generated at the dam itself, the project provides water supply for the Public Service Company of Oklahoma (PSO) power plant located downstream along the Arkansas River. Keystone Dam also provides navigation benefits along the Arkansas River and various recreation benefits. Associated with the dam is also Cleveland Levee, located upstream of the dam and within the reservoir. Cleveland Levee reduces flood risk to the City of Cleveland, Oklahoma due to high reservoir levels and high river flows.", "riskCharSummary":"USACE completed a risk assessment in 2023 and classified the risk associated with Keystone Dam as high. The risk is primarily driven by 1.) the potential for a very rare flood to occur causing water to flow over the top of the dam resulting in breach and 2.) The potential for a large release through the gates to cause erosion immediately downstream of the concrete dam causing a section of the dam to rotate or slide downstream resulting in additional flooding. The potential for the dam\u2019s gates to become inoperable during a flood was also considered during the assessment. If the gates did not operate as intended, it would reduce the capability to release water which could contribute to the potential for water to flow over the top of the dam. The risk is also increased due to the large populations living downstream of the dam that would be flooded in the event of a failure. \n\nFailure of the dam would include catastrophic flooding downstream, widespread economic impacts, and significant loss of life. In the remote event of a dam failure the largest impacts would be to the cities of Sand Springs (including those areas behind the Tulsa West Tulsa Levee System), Tulsa, Jenks (including those areas behind the Jenks Levee System), Bixby, Muskogee, and other communities along the Arkansas River. Bridges crossing the Arkansas River and key infrastructure along the river from Sand Springs to Webbers Falls could also be damaged or destroyed. \n\nA more likely flooding scenario includes a large release through the gated spillway during a flood with the project operating as intended. Although the inundation would not be as great as a breach of the dam, this scenario could still result in widespread economic impacts and loss of life due to the extent of the flooding possible as part of normal operation of the dam.", "riskManagementMeasures":"USACE is taking several actions to manage and reduce the risk that Keystone Dam poses to the community. A dam safety modification study is underway to evaluate alternatives to potentially modify the dam to directly reduce risk. \nThere are numerous additional activities that USACE conducts on a day to day basis to help manage risk. This includes conducting emergency exercises with local and state emergency responders to enhance evacuation planning, routine updates to the Emergency Action Plan to improve emergency response actions, and development of a detailed communication plan for the dam to build awareness of flood 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 a robust instrumentation and monitoring system to allow USACE staff to evaluate the dam for changing conditions.", "riverName":"ARKANSAS RIVER", "separateStructuresCount":1, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":1, "spillwayWidth":720, "stateFedId":"OK10309", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":121, "submitDate":"2023-02-16T17:25:36.906Z", "surfaceArea":22420, "volume":4389100, "widthOfLocks":0, "secondaryWidthOfLocks":null, "yearCompleted":1964, "congDist":"Congressional District 01, Oklahoma", "city":"SAND SPRINGS", "county":"Tulsa", "aiannh":"Creek OTSA", "websiteUrl":"https://www.swt.usace.army.mil/Locations/Tulsa-District-Lakes/Oklahoma/Keystone-Lake/", "coreTypeIds":"3", "damTypeIds":"9;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":"Keystone Lake", "ownerNames":"USACE - Tulsa District", "ownerTypeIds":"3", "primaryDamTypeId":9, "primaryOwnerTypeId":3, "primaryPurposeId":9, "purposeIds":"9;12;5;6;8", "dsacId":2, "femaRegion":"6", "lastEapExcerDate":"2025-01-30T12:00:00.000Z", "dataUpdated":"2025-07-16T12:00:00.000Z", "usaceDistrict":"Tulsa District", "noConsequencesId":0, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":1, "damStatusId":2, "huc06":"111101", "doi_region":"ART", "doi_region_name":"Arkansas-Rio Grande-Texas Gulf", "doi_region_number":6, "thirtyYearAverage":676.603, "tenthPercentile":543.0146, "ninetiethPercentile":827.0252 }, "id":5502051, "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/5502051?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/5502051?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/5502051?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }