{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -98.60139, 36.08417 ] }, "properties":{ "provider":"SWT", "code":"CANT", "slug":"cant", "elevation":1575.0, "horizontal_datum":"WGS84", "vertical_datum":"NGVD29", "state":"OK", "kind":"PROJECT", "nearest_city":"Canton, OK", "public_name":"Canton Lake", "location_code":2270051, "nsid":null, "aliases":{ "NIDID":"OK10316", "CWMS Standard Naming":"CANT", "CWMS Legacy Naming":"CANT", "NWS Handbook 5 ID":"CNLO2", "USGS Station Number":"07238500", "DCP Platform ID":"CE61B194" }, "timeseries":[ { "tsid":"CANT.Flow-Res Out.Inst.1Hour.0.Rev-Regi-Flowgroup", "label":"Outflow", "base_parameter":"Flow", "parameter":"Flow-Res Out", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T22:00:00Z", "latest_value":0.0, "delta24h":null, "sort_order":7, "results":null }, { "tsid":"CANT.Flow-Res In.Ave.~8Hours.8Hours.Rev-Ccp", "label":"Inflow", "base_parameter":"Flow", 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"sort_order":13, "results":null }, { "tsid":"CANT.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":1615.88, "delta24h":null, "sort_order":1, "results":null }, { "tsid":"CANT.Precip-Inc.Total.1Hour.1Hour.Ccp-Rev", "label":"Precipitation", "base_parameter":"Precip", "parameter":"Precip-Inc", "unit":"in", "unit_long_name":"Inches", "latest_time":"2026-04-14T22:00:00Z", "latest_value":0.0, "delta24h":null, "sort_order":16, "results":null } ], "name":"Canton Lake", "hasResopsAverages":"true", "nidId":"OK10316", "nidid":"", "levels":[ { "slug":"elev.24-hr surveillance begins", "label":"24-hr Surveillance Begins", "parameter":"Elev", "base_parameter":"Elev", "tsid":"CANT.Elev.Inst.0.24-hr Surveillance Begins", "latest_value":1622, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.bottom of conservation", "label":"Bottom of Conservation", 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"units_long_name":"Feet" }, { "slug":"elev.top of normal", "label":"Top of Normal", "parameter":"Elev", "base_parameter":"Elev", "tsid":"CANT.Elev.Inst.0.Top of Normal", "latest_value":1615.4, "units":"ft", "units_long_name":"Feet" }, { "slug":"stor.24-hr surveillance begins", "label":"24-hr Surveillance Begins", "parameter":"Stor", "base_parameter":"Stor", "tsid":"CANT.Stor.Inst.0.24-hr Surveillance Begins", "latest_value":166519, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.bottom of flood control", "label":"Bottom of Flood Control", "parameter":"Stor", "base_parameter":"Stor", "tsid":"CANT.Stor.Inst.0.Bottom of Flood Control", "latest_value":109740, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.bottom of normal", "label":"Bottom of Normal", "parameter":"Stor", "base_parameter":"Stor", "tsid":"CANT.Stor.Inst.0.Bottom of Normal", "latest_value":13897, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.maximum pool", "label":"Maximum Pool", "parameter":"Stor", "base_parameter":"Stor", "tsid":"CANT.Stor.Inst.0.Maximum Pool", "latest_value":428517, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.spillway crest", "label":"Spillway Crest", "parameter":"Stor", "base_parameter":"Stor", "tsid":"CANT.Stor.Inst.0.Spillway Crest", "latest_value":91565, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.streambed", "label":"Streambed", "parameter":"Stor", "base_parameter":"Stor", "tsid":"CANT.Stor.Inst.0.Streambed", "latest_value":15.2, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of conservation", "label":"Top of Conservation", "parameter":"Stor", "base_parameter":"Stor", "tsid":"CANT.Stor.Inst.0.Top of Conservation", "latest_value":108580, "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":"CANT.Stor.Inst.0.Top of Constant Conservation", "latest_value":108580, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of dam", "label":"Top of Dam", "parameter":"Stor", "base_parameter":"Stor", "tsid":"CANT.Stor.Inst.0.Top of Dam", "latest_value":546166, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of flood", "label":"Top of Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"CANT.Stor.Inst.0.Top of Flood", "latest_value":370107, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of inactive", "label":"Top of Inactive", "parameter":"Stor", "base_parameter":"Stor", "tsid":"CANT.Stor.Inst.0.Top of Inactive", "latest_value":16061, "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":"CANT.Stor.Inst.0.Top of Induced Surcharge", "latest_value":400040, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of normal", "label":"Top of Normal", "parameter":"Stor", "base_parameter":"Stor", "tsid":"CANT.Stor.Inst.0.Top of Normal", "latest_value":109740, "units":"ac-ft", "units_long_name":"Acre-feet" } ], "id":550105, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":68, "damLength":15140, "distance":null, "drainageArea":7600, "eapId":1, "dsacAssignedDate":"2018-05-14T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2025-06-26T12:00:00.000Z", "eapLastRevDate":"2022-04-30T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"OK10316", "oldFederalId":"OK10316", "hazardId":4, "hydraulicHeight":66, "inspectionAuthorityId":0, "inspectionDate":"2020-11-04T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":36.0885061860001, "lengthOfLocks":0, "secondaryLengthOfLocks":null, "longitude":-98.5914084999999, "maxDischarge":339200, "maxStorage":383800, "nidHeight":68, "nidStorage":383800, "normalStorage":111310, "numberOfLocks":0, "operationalStatusDate":"2018-05-14T12:00:00.000Z", "operationalStatusId":1, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The United States Army Corps of Engineers (USACE) completed construction of Canton Dam in 1948 with the primary purpose to reduce flooding in downstream communities. The dam consists of an earthen embankment, a primary gated concrete spillway, a secondary concrete spillway and four earthen dikes. The project is located on the North Canadian River about 2 miles north of Canton, OK in Blaine County. During large storm events, the dam holds back excess water to reduce flooding downstream for communities along the North Canadian River. This stored water can then be released in a more controlled manner to reduce dangerous flooding. These releases are regulated by the primary spillway gates. For large flood events, the auxiliary spillway allows additional storage release to help prevent dam overtopping. The dam also provides local benefits including water supply for Oklahoma City, agricultural irrigation and recreation.", "riskCharSummary":"USACE completed a risk assessment in 2017 and classified the risk associated with the dam as very low. Although extremely unlikely, the primary risks to the integrity of the dam are the potential for (1) Mechanical or electrical issues causing gate failure, and (2) instability of the concrete portion of the dam,. In the remote event of a dam failure, the largest impacts would be to Oklahoma City. Other impacted areas would be the towns of Canton, Watonga, Greenfield, Calumet, El Reno, and Shawnee. There is also flood risk associated with the dam due to normal operation of the dam which could include large releases through the gated spillway during a large flood.", "riskManagementMeasures":"Construction remediation efforts were completed within the last 10 years to improve the safety of the structure which contributed to the very low risk rating. This work included construction of an auxiliary spillway, anchoring the primary spillway to ensure its stability, and widening the earthen dam and constructing a new drainage system to collect water seeping beneath the dam.\nThere are numerous activities that USACE conducts on a day-to-day basis to help manage the risk that is posed to downstream communities. This includes conducting emergency exercises with local and state emergency responders to enhance evacuation planning, yearly updates to the EAP to improve emergency response actions, and development of a detailed communication plan for the dam. 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 program to allow USACE staff to evaluate the dam for changing conditions. These instruments are monitored regularly for any early indications of potential safety concerns at the project.", "riverName":"NORTH CANADIAN RIVER", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":1, "spillwayWidth":640, "stateFedId":"OK10316", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":68, "submitDate":"2023-02-16T17:25:38.649Z", "surfaceArea":7910, "volume":5300000, "widthOfLocks":0, "secondaryWidthOfLocks":null, "yearCompleted":1948, "congDist":"Congressional District 03, Oklahoma", "city":"CANTON", "county":"Blaine", "aiannh":"Cheyenne-Arapaho OTSA", "websiteUrl":"https://www.swt.usace.army.mil/Locations/Tulsa-District-Lakes/Oklahoma/Canton-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;3", "nonFederalDamOnFederalId":0, "designerNames":"CESWT", "otherNames":"Canton Lake", "ownerNames":"USACE - Tulsa District", "ownerTypeIds":"3", "primaryDamTypeId":9, "primaryOwnerTypeId":3, "primaryPurposeId":9, "purposeIds":"9;2;8", "dsacId":5, "femaRegion":"6", "lastEapExcerDate":"2025-06-26T12:00:00.000Z", "dataUpdated":"2025-07-15T18:27:53.861Z", "usaceDistrict":"Tulsa District", "noConsequencesId":0, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":1, "damStatusId":2, "huc06":"111003", "doi_region":"ART", "doi_region_name":"Arkansas-Rio Grande-Texas Gulf", "doi_region_number":6, "thirtyYearAverage":117.9671, "tenthPercentile":55.6374, "ninetiethPercentile":147.6328 }, "id":2270051, "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/2270051?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/2270051?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/2270051?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }