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pool", "label":"Top of Navigation Pool", "parameter":"Stor", "base_parameter":"Stor", "tsid":"ROBE.Stor.Inst.0.Top of Navigation Pool", "latest_value":376551.1, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of normal", "label":"Top of Normal", "parameter":"Stor", "base_parameter":"Stor", "tsid":"ROBE.Stor.Inst.0.Top of Normal", "latest_value":376551.1, "units":"ac-ft", "units_long_name":"Acre-feet" } ], "id":550076, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":75, "damLength":7230, "distance":null, "drainageArea":147756, "eapId":1, "dsacAssignedDate":"2024-02-21T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2024-11-13T12:00:00.000Z", "eapLastRevDate":"2023-10-25T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"OK10301", "oldFederalId":"OK10301", "hazardId":4, "hydraulicHeight":60, "inspectionAuthorityId":0, "inspectionDate":"2023-02-27T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":35.3467939650001, "lengthOfLocks":600, "secondaryLengthOfLocks":null, "longitude":-94.777402594, "maxDischarge":1542000, "maxStorage":525700, "nidHeight":75, "nidStorage":525700, "normalStorage":525700, "numberOfLocks":1, "operationalStatusDate":"2009-05-12T12:00:00.000Z", "operationalStatusId":1, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The United States Army Corps of Engineers (USACE) completed construction of R.S. Kerr Lock and Dam in 1970 with the primary purpose of navigation and hydropower generation. The project also provides recreation and fish and wildlife benefits. R.S. Kerr Lock and Dam is located at navigation on the Arkansas River, approximately 8 miles south of the town of Sallisaw, OK. The project consists of an earthen embankment, navigation lock, concrete spillway with gates, and hydropower plant. Under normal river conditions, the flows within the river are regulated by the concrete gated spillway to ensure river levels are high enough for navigation barge traffic. During river flooding, the spillway gates are fully opened to allow as much water to pass through the structure as possible. After the flood passes and the river level recedes, the project returns to normal river conditions.", "riskCharSummary":"USACE completed a risk assessment in October 2023 and classified the risk associated with R.S. Kerr Lock and Dam as low.\u00a0 Although unlikely, the primary risks identified are: (1) the potential for water to flow over the top of the embankment leading to erosion and breach and (2) the potential for water to seep through the embankment resulting in erosion and breach.\u00a0 Failure of the dam would result in widespread downstream flooding and potential life loss along the Arkansas River including the cities of Fort Smith, AR; Van Buren, AR; Mulberry, AR; Ozark, AR.\u00a0 The assessment also identified that the spillway gates are in poor condition.\u00a0 If the gates were to fail, there would likely be impacts to navigation and hydropower but life loss would not be expected.\u00a0 \n\n\nWidespread flooding could also occur downstream as part of normal operation of the dam (when the gates are fully opened during a large flood).", "riskManagementMeasures":"There are numerous activities that USACE conducts on a day to day basis to help manage risk. USACE is performing rehabilitation and painting of the deteriorated gates, with additional work needed and planned in coming years. Additional measures include 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. Additionally, the dam is 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.", "riverName":"ARKANSAS RIVER", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":1, "spillwayWidth":900, "stateFedId":"OK10301", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":82, "submitDate":"2023-02-16T17:25:15.323Z", "surfaceArea":32800, "volume":38903, "widthOfLocks":110, "secondaryWidthOfLocks":null, "yearCompleted":1970, "congDist":"Congressional District 02, Oklahoma", "city":"REDLAND", "county":"Le Flore", "aiannh":"Choctaw OTSA", "websiteUrl":"https://www.swt.usace.army.mil/Locations/Tulsa-District-Lakes/Oklahoma/Robert-S-Kerr-Lock-and-Dam/", "coreTypeIds":"3", "damTypeIds":"9;8", "fedConstructionIds":"1", "fedDesignIds":"1", "fedFundingIds":"1", "fedInspectionIds":"1", "fedOperationIds":"1", "fedOtherIds":"1", "fedOwnerIds":"1", "fedRegulatoryIds":"1", "formerNames":"Lock and Dam 15", "foundationTypeIds":"1;3", "nonFederalDamOnFederalId":0, "designerNames":"CESWT", "otherNames":"Robert S. 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