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"tsid":"COHT1.Stor.Inst.0.Bottom of Flood", "latest_value":225300, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.bottom of power", "label":"Bottom of Power", "parameter":"Stor", "base_parameter":"Stor", "tsid":"COHT1.Stor.Inst.0.Bottom of Power", "latest_value":204800, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of dam", "label":"Top of Dam", "parameter":"Stor", "base_parameter":"Stor", "tsid":"COHT1.Stor.Inst.0.Top of Dam", "latest_value":386600, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of flood", "label":"Top of Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"COHT1.Stor.Inst.0.Top of Flood", "latest_value":310900, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of inactive", "label":"Top of Inactive", "parameter":"Stor", "base_parameter":"Stor", "tsid":"COHT1.Stor.Inst.0.Top of Inactive", "latest_value":204800, "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":"COHT1.Stor.Inst.0.Top of Induced Surcharge", "latest_value":310900, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of power", "label":"Top of Power", "parameter":"Stor", "base_parameter":"Stor", "tsid":"COHT1.Stor.Inst.0.Top of Power", "latest_value":225300, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of surcharge", "label":"Top of Surcharge", "parameter":"Stor", "base_parameter":"Stor", "tsid":"COHT1.Stor.Inst.0.Top of Surcharge", "latest_value":310900, "units":"ac-ft", "units_long_name":"Acre-feet" } ], "id":550011, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":null, "damLength":1306, "distance":null, "drainageArea":8096, "eapId":1, "dsacAssignedDate":"2016-08-04T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2024-06-24T12:00:00.000Z", "eapLastRevDate":"2023-01-13T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"TN15901", "oldFederalId":"TN15901", "hazardId":4, "hydraulicHeight":87, "inspectionAuthorityId":0, "inspectionDate":"2020-06-09T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":36.2903250680001, "lengthOfLocks":400, "secondaryLengthOfLocks":null, "longitude":-85.943627738, "maxDischarge":175000, "maxStorage":310900, "nidHeight":93, "nidStorage":310900, "normalStorage":258000, "numberOfLocks":1, "operationalStatusDate":"2016-08-04T12:00:00.000Z", "operationalStatusId":2, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The U.S. Army Corps of Engineers (USACE) completed construction of the Cordell Hull Lock and Dam in March of 1973 with the powerhouse being completed in February 1974. The dam is located near Carthage, TN on the Cumberland River approximately 313.5 river miles above its confluence with the Ohio River. Cordell Hull Lock and Dam was authorized by Congress through the River and Harbor Act of 1946, as one of the multipurpose projects in the Corps of Engineers\u2019 coordinated plan for development of the water resources of the Cumberland River Basin. The dam has a maximum height of 87 feet, a total length of 1,306 feet, and consists of a concrete gravity section, earthen embankment, navigation lock, and powerhouse. Cordell Hull Dam impounds Cordell Hull Lake which has a total storage capacity of 311,000 acre-ft. The Congressionally authorized project purposes include navigation, hydropower generation, and recreation.", "riskCharSummary":"The project risk is currently driven by the consequences of an overtopping failure of the compacted clay embankment. Consequences from a dam failure are expected to be moderate with the major damage center being Carthage, TN, with Smith, Trousdale, Wilson, Sumner, Davidson and Cheatham counties impacted by the inundation scenarios. The population at risk is estimated to be less than 10,000. There are currently no operating restrictions in place and no plans to change how water releases are managed.", "riskManagementMeasures":"USACE is continually taking significant steps to reduce the risk to the public. This includes working closely with local emergency managers, regularly updating the Emergency Action Plan, and conducting emergency exercises with state and local response teams. All dam safety staff are regularly trained to monitor and evaluate the condition of the dam based on key risk components. USACE regularly inspects and monitors instruments to check the health of the dam and increase the frequency of this monitoring during lake levels rises. This ensures that the structure is performing as designed and could help detect any areas of potential concern. Regular maintenance and repairs are performed as needed to keep the dam functioning properly.", "riverName":"CUMBERLAND RIVER", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":1, "spillwayWidth":225, "stateFedId":"TN15901", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":93, "submitDate":"2023-12-18T22:27:30.473Z", "surfaceArea":11960, "volume":533928, "widthOfLocks":84, "secondaryWidthOfLocks":null, "yearCompleted":1973, "congDist":"Congressional District 06, Tennessee", "city":"CARTHAGE", "county":"Smith", "aiannh":null, "websiteUrl":"https://www.usace.army.mil/Missions/Civil-Works/Dam-Safety-Program/Article/2870967/dam-safety-program/", "coreTypeIds":"2", "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":"CELRN", "otherNames":"Cordell Hull Lake", "ownerNames":"USACE - Nashville District", "ownerTypeIds":"3", "primaryDamTypeId":9, "primaryOwnerTypeId":3, "primaryPurposeId":5, "purposeIds":"5;12;3;6;8", "dsacId":3, "femaRegion":"4", "lastEapExcerDate":"2024-06-24T12:00:00.000Z", "dataUpdated":"2025-01-27T12:00:00.000Z", "usaceDistrict":"Nashville District", "noConsequencesId":0, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":1, "damStatusId":2, "huc06":"051301", "doi_region":null, "doi_region_name":"South Atlantic Gulf", "doi_region_number":2, "thirtyYearAverage":290.0569, "tenthPercentile":271.8924, "ninetiethPercentile":311.6936 }, "id":2829010, "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/2829010?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/2829010?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/2829010?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }