{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -96.1625, 36.53472 ] }, "properties":{ "provider":"SWT", "code":"BIRC", "slug":"birc", "elevation":690.0, "horizontal_datum":"WGS84", "vertical_datum":"NGVD29", "state":"OK", "kind":"PROJECT", "nearest_city":"Barnsdall, OK", "public_name":"Birch Lake", "location_code":5496051, "nsid":null, "aliases":{ "NIDID":"OK20508", "CWMS Standard Naming":"BIRC", "CWMS Legacy Naming":"BIRC", "NWS Handbook 5 ID":"BIRO2", "USGS Station Number":"07176465", "DCP Platform ID":"CE601396" }, "timeseries":[ { "tsid":"BIRC.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":17908.56, "delta24h":null, "sort_order":13, "results":null }, { "tsid":"BIRC.Flow-Res In.Ave.~8Hours.8Hours.Rev-Ccp", "label":"Inflow", "base_parameter":"Flow", "parameter":"Flow-Res In", 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}, { "tsid":"BIRC.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 }, { "tsid":"BIRC.Stor.Inst.1Hour.0.Ccp-Rev", "label":"Flood Storage", "base_parameter":"Stor", "parameter":"Stor", "unit":"ac-ft", "unit_long_name":"Acre-feet", "latest_time":"2026-04-14T22:00:00Z", "latest_value":17908.56, "delta24h":null, "sort_order":11, "results":null } ], "name":"Birch Lake", "hasResopsAverages":"true", "nidId":"OK20508", "nidid":"", "levels":[ { "slug":"elev.24-hr surveillance begins", "label":"24-hr Surveillance Begins", "parameter":"Elev", "base_parameter":"Elev", "tsid":"BIRC.Elev.Inst.0.24-hr Surveillance Begins", "latest_value":770, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.auxiliary spillway crest", "label":"Auxiliary Spillway Crest", "parameter":"Elev", 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"units_long_name":"Feet" }, { "slug":"elev.streambed", "label":"Streambed", "parameter":"Elev", "base_parameter":"Elev", "tsid":"BIRC.Elev.Inst.0.Streambed", "latest_value":698, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of conservation", "label":"Top of Conservation", "parameter":"Elev", "base_parameter":"Elev", "tsid":"BIRC.Elev.Inst.0.Top of Conservation", "latest_value":750.5, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of constant conservation", "label":"Top of Constant Conservation", "parameter":"Elev", "base_parameter":"Elev", "tsid":"BIRC.Elev.Inst.0.Top of Constant Conservation", "latest_value":750.5, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of dam", "label":"Top of Dam", "parameter":"Elev", "base_parameter":"Elev", "tsid":"BIRC.Elev.Inst.0.Top of Dam", "latest_value":795, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of flood", "label":"Top of Flood", "parameter":"Elev", "base_parameter":"Elev", "tsid":"BIRC.Elev.Inst.0.Top of Flood", "latest_value":774, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of inactive", "label":"Top of Inactive", "parameter":"Elev", "base_parameter":"Elev", "tsid":"BIRC.Elev.Inst.0.Top of Inactive", "latest_value":730, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of normal", "label":"Top of Normal", "parameter":"Elev", "base_parameter":"Elev", "tsid":"BIRC.Elev.Inst.0.Top of Normal", "latest_value":750.5, "units":"ft", "units_long_name":"Feet" }, { "slug":"stor.auxiliary spillway crest", "label":"Auxiliary Spillway Crest", "parameter":"Stor", "base_parameter":"Stor", "tsid":"BIRC.Stor.Inst.0.Auxiliary Spillway Crest", "latest_value":57259, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.bottom of constant conservation pool", "label":"Bottom of Constant Conservation Pool", "parameter":"Stor", "base_parameter":"Stor", "tsid":"BIRC.Stor.Inst.0.Bottom of Constant Conservation Pool", "latest_value":3074, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.bottom of exclusive flood control", "label":"Bottom of Exclusive Flood Control", "parameter":"Stor", "base_parameter":"Stor", "tsid":"BIRC.Stor.Inst.0.Bottom of Exclusive Flood Control", "latest_value":17967, "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":"BIRC.Stor.Inst.0.Bottom of Flood Control", "latest_value":17967, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.bottom of normal", "label":"Bottom of Normal", "parameter":"Stor", "base_parameter":"Stor", "tsid":"BIRC.Stor.Inst.0.Bottom of Normal", "latest_value":3074, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of conservation", "label":"Top of Conservation", "parameter":"Stor", "base_parameter":"Stor", "tsid":"BIRC.Stor.Inst.0.Top of Conservation", "latest_value":17967, "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":"BIRC.Stor.Inst.0.Top of Constant Conservation", "latest_value":17967, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of dam", "label":"Top of Dam", "parameter":"Stor", "base_parameter":"Stor", "tsid":"BIRC.Stor.Inst.0.Top of Dam", "latest_value":72704, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of flood", "label":"Top of Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"BIRC.Stor.Inst.0.Top of Flood", "latest_value":57259, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of inactive", "label":"Top of Inactive", "parameter":"Stor", "base_parameter":"Stor", "tsid":"BIRC.Stor.Inst.0.Top of Inactive", "latest_value":3074, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of normal", "label":"Top of Normal", "parameter":"Stor", "base_parameter":"Stor", "tsid":"BIRC.Stor.Inst.0.Top of Normal", "latest_value":17967, "units":"ac-ft", "units_long_name":"Acre-feet" } ], "id":549930, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":97, "damLength":3193, "distance":null, "drainageArea":66, "eapId":1, "dsacAssignedDate":"2019-03-29T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2024-06-27T12:00:00.000Z", "eapLastRevDate":"2023-07-10T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"OK20508", "oldFederalId":"OK20508", "hazardId":4, "hydraulicHeight":94, "inspectionAuthorityId":0, "inspectionDate":"2025-01-14T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":36.5314709130001, "lengthOfLocks":0, "secondaryLengthOfLocks":null, "longitude":-96.160604596, "maxDischarge":37200, "maxStorage":111100, "nidHeight":97, "nidStorage":111100, "normalStorage":19225, "numberOfLocks":0, "operationalStatusDate":"2019-03-29T12:00:00.000Z", "operationalStatusId":1, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The United States Army Corps of Engineers (USACE) completed construction of Birch Dam in 1977 with the primary purpose to reduce flooding in downstream communities. Birch Dam is located on Birch Creek about 2 miles south of Barnsdall, OK. During large storm events, the dam holds back excess water to reduce flooding downstream for communities along the Arkansas River. This stored water can then be released in a more controlled manner to reduce dangerous flooding. These releases are regulated by a discharge conduit through the earthen dam. For large flood events, an ungated spillway is located north of the gate tower which allows additional storage release to help prevent dam overtopping. Birch Dam also was constructed to provide water supply, water quality monitoring, fish and wildlife habitats, and recreation.", "riskCharSummary":"USACE completed a risk assessment in April 2020 and classified the risk associated with Birch Dam as low. While the dam was noted to be in good condition during the assessment, the primary risk identified to the dam is the potential for water to flow over the top of the dam during an extreme flood resulting in erosion in breach. The assessment also identified a remote risk associated with the potential for water seeping through the earth foundation beneath the dam to result in soil erosion and breach. In the remote event of dam failure there would be catastrophic flooding downstream, widespread economic impacts, and significant loss of life. The largest impacts would be to the cities of Barnsdall, Avant, Skiatook, Owasso, Tulsa, and other communities along the Arkansas River. Key infrastructure along the river from Barnsdall to Webbers Falls could also be damaged or destroyed, including operation and access of the Kerr-McClellan Navigational System.\n\nThere is also flood risk associated with the dam due to normal operation of the dam which could include large releases through the ungated spillway during a large flood. While this flooding would be less than a breach scenario it could still result in economic impacts and loss of life due to the extent of flooding.", "riskManagementMeasures":"There are numerous activities that USACE conducts on a day to day basis to help manage the risk Birch Dam poses to downstream communities. This includes conducting emergency exercises with local and state emergency responders to enhance evacuation planning, yearly updates to the Emergency Action Plan 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 system 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":"BIRCH CREEK", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":3, "spillwayWidth":135, "stateFedId":"OK20508", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":97, "submitDate":"2023-02-16T17:25:38.363Z", "surfaceArea":1145, "volume":1900000, "widthOfLocks":0, "secondaryWidthOfLocks":null, "yearCompleted":1977, "congDist":"Congressional District 03, Oklahoma", "city":"AVANT", "county":"Osage", "aiannh":"Osage Reservation", "websiteUrl":"https://www.swt.usace.army.mil/Locations/Tulsa-District-Lakes/Oklahoma/Birch-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;3", "nonFederalDamOnFederalId":0, "designerNames":"CESWT", "otherNames":"Birch Lake", "ownerNames":"USACE - Tulsa District", "ownerTypeIds":"3", "primaryDamTypeId":8, "primaryOwnerTypeId":3, "primaryPurposeId":9, "purposeIds":"9;5;8", "dsacId":4, "femaRegion":"6", "lastEapExcerDate":"2024-06-27T12:00:00.000Z", "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":"ART", "doi_region_name":"Arkansas-Rio Grande-Texas Gulf", "doi_region_number":6, "thirtyYearAverage":23.2797, "tenthPercentile":19.881, "ninetiethPercentile":25.3492 }, "id":5496051, "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/5496051?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/5496051?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/5496051?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }