{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -86.24528, 37.27667 ] }, "properties":{ "provider":"LRL", "code":"Nolin", "slug":"nolin", "elevation":490.0, "horizontal_datum":"NAD27", "vertical_datum":"NGVD29", "state":"KY", "kind":"PROJECT", "nearest_city":"Bee Spring, KY", "public_name":"Nolin Lake", "location_code":1144109, "nsid":null, "aliases":{ "NIDID":"KY03011" }, "timeseries":[ { "tsid":"Nolin.Stor.Inst.1Hour.0.lrldlb-comp", "label":"Flood Storage", "base_parameter":"Stor", "parameter":"Stor", "unit":"ac-ft", "unit_long_name":"Acre-feet", "latest_time":"2026-04-14T11:00:00Z", "latest_value":101729.8, "delta24h":null, "sort_order":11, "results":null }, { "tsid":"Nolin.Stor.Inst.1Hour.0.lrldlb-comp", "label":"Conservation Storage", "base_parameter":"Stor", "parameter":"Stor", "unit":"ac-ft", "unit_long_name":"Acre-feet", "latest_time":"2026-04-14T11:00:00Z", "latest_value":101729.8, "delta24h":null, "sort_order":13, "results":null }, { "tsid":"Nolin.Flow-Inflow.Ave.1Hour.6Hours.lrldlb-comp", "label":"Inflow", "base_parameter":"Flow", "parameter":"Flow-Inflow", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T11:00:00Z", "latest_value":95.69, "delta24h":null, "sort_order":6, "results":null }, { "tsid":"Nolin.Flow-Outflow.Ave.1Hour.1Hour.lrldlb-comp", "label":"Outflow", "base_parameter":"Flow", "parameter":"Flow-Outflow", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T11:00:00Z", "latest_value":60.78, "delta24h":null, "sort_order":7, "results":null }, { "tsid":"Nolin.Elev.Inst.0.0.lrldlb-rev", "label":"Elevation", "base_parameter":"Elev", "parameter":"Elev", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T11:00:00Z", "latest_value":500.97, "delta24h":null, "sort_order":1, "results":null } ], "name":"Nolin Lake", "hasResopsAverages":"true", "nidId":"KY03011", "nidid":"", "levels":[ { "slug":"elev.bottom of flood", "label":"Bottom of Flood", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Nolin.Elev.Inst.0.Bottom of Flood", "latest_value":514.65, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.bottom of flood control", "label":"Bottom of Flood Control", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Nolin.Elev.Inst.0.Bottom of Flood Control", "latest_value":514.81, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.bottom of inlet", "label":"Bottom of Inlet", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Nolin.Elev.Inst.0.Bottom of Inlet", "latest_value":422, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.bottom of normal", "label":"Bottom of Normal", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Nolin.Elev.Inst.0.Bottom of Normal", "latest_value":490, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.guide curve", "label":"Guide Curve", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Nolin.Elev.Inst.0.Guide Curve", "latest_value":515, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.streambed", "label":"Streambed", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Nolin.Elev.Inst.0.Streambed", "latest_value":422, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of conservation", "label":"Top of Conservation", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Nolin.Elev.Inst.0.Top of Conservation", "latest_value":515, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of dam", "label":"Top of Dam", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Nolin.Elev.Inst.0.Top of Dam", "latest_value":581, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of flood", "label":"Top of Flood", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Nolin.Elev.Inst.0.Top of Flood", "latest_value":560, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of normal", "label":"Top of Normal", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Nolin.Elev.Inst.0.Top of Normal", "latest_value":490, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of overflow", "label":"Top of Overflow", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Nolin.Elev.Inst.0.Top of Overflow", "latest_value":560, "units":"ft", "units_long_name":"Feet" }, { "slug":"stor.bottom of flood", "label":"Bottom of Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Nolin.Stor.Inst.0.Bottom of Flood", "latest_value":168648.13, "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":"Nolin.Stor.Inst.0.Bottom of Flood Control", "latest_value":169322.49, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.bottom of inlet", "label":"Bottom of Inlet", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Nolin.Stor.Inst.0.Bottom of Inlet", "latest_value":0, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.bottom of normal", "label":"Bottom of Normal", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Nolin.Stor.Inst.0.Bottom of Normal", "latest_value":63841, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.guide curve", "label":"Guide Curve", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Nolin.Stor.Inst.0.Guide Curve", "latest_value":170200, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.streambed", "label":"Streambed", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Nolin.Stor.Inst.0.Streambed", "latest_value":0, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of conservation", "label":"Top of Conservation", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Nolin.Stor.Inst.0.Top of Conservation", "latest_value":170200, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of dam", "label":"Top of Dam", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Nolin.Stor.Inst.0.Top of Dam", "latest_value":975170, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of flood", "label":"Top of Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Nolin.Stor.Inst.0.Top of Flood", "latest_value":609400, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of normal", "label":"Top of Normal", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Nolin.Stor.Inst.0.Top of Normal", "latest_value":63841, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of overflow", "label":"Top of Overflow", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Nolin.Stor.Inst.0.Top of Overflow", "latest_value":609400, "units":"ac-ft", "units_long_name":"Acre-feet" } ], "id":550323, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":null, "damLength":980, "distance":1, "drainageArea":703, "eapId":1, "dsacAssignedDate":"2019-05-30T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2025-03-05T12:00:00.000Z", "eapLastRevDate":"2019-09-05T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"KY03011", "oldFederalId":"KY03011", "hazardId":4, "hydraulicHeight":146, "inspectionAuthorityId":0, "inspectionDate":"2023-06-07T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":37.277144326, "lengthOfLocks":0, "secondaryLengthOfLocks":null, "longitude":-86.2470187009999, "maxDischarge":48000, "maxStorage":609400, "nidHeight":167, "nidStorage":609400, "normalStorage":170140, "numberOfLocks":0, "operationalStatusDate":"2019-05-30T12:00:00.000Z", "operationalStatusId":2, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The U.S. Army Corps of Engineers (USACE) completed Nolin River Dam in 1963. Nolin River Lake is located in south-central Kentucky, approximately 9 miles north of Brownsville, Kentucky, and 12 miles south of Leitchfield, Kentucky. The project consists of a 980-foot-long earth and rock fill embankment with a maximum height of 166 feet, a gate-controlled outlet works along the base of the right abutment, and a 300-foot wide, uncontrolled open-cut spillway through the right abutment. The project manages the flood risk along approximately 8 miles of the Nolin River, approximately 184 miles on the Green River, and to a lesser extent on the Ohio and Mississippi Rivers. The project has a drainage area of approximately 703 square miles. At spillway crest, the reservoir extends up the Nolin River approximately 58 miles. The record pool\noccurred in May 2011 where the pool elevation reached 559.3 ft-NAVD88, which is 0.3 feet below the spillway sill elevation of 559.6 ft-NAVD88.", "riskCharSummary":"USACE completed a risk assessment for Nolin River Dam in May 2019 that characterizes the risk of the project as a Dam Safety Action Classification (DSAC) 3 which is considered Moderate relative to the dams the USACE owns and operates. The dam significantly reduces the risk of flooding to downstream communities. However, it does not eliminate the risk completely. Although the Nolin River Dam has historically performed well, extreme rainfall may cause areas downstream to be flooded. Even when the dam operates as intended, downstream flooding could still occur if a very large rainfall event were to require unusually large quantities of water to be released through the dam spillway. There is also an unlikely, but far more devastating scenario that would produce significant flooding, which is internal erosion of the dam's earthen embankment during a period of high reservoir levels that could lead to a breach of the dam. Another unlikely devastating scenario that would produce significant flooding would be spillway erosion due to a prolonged period of flow through the spillway from high reservoir levels. In both of these scenarios, an uncontrolled surge of water could flow out of the reservoir,\nresulting in potentially deadly flooding along the Nolin and Green Rivers.\n\nIf a dam failure occurred, water from the reservoir would flood downstream communities. The largest impacts would be to the communities of Brownsville, Woodbury, and Morgantown along the Green River. Smaller communities in portions of Edmondson, Butler, and Warren counties along the Nolin and Green, as well as the Barren River due to backwater effects, would also be impacted. The communities of Rochester and Livermore further downstream along the Green River would be impacted but to a lesser extent due to attenuation of flood depths.", "riskManagementMeasures":"USACE is continuously taking 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. USACE utilizes the latest forecast, and stream gauge information and coordinates closely with the National Weather service concerning conditions both upstream and downstream of the dam including inflow, outflow, and precipitation. Rainfall forecasts are used to determine when high pool events may occur. USACE regularly inspects and monitors instruments to check the health of the dam. The frequency of these checks increases when the lake level 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. Flood fighting materials are stockpiled at the project and readily available for use during emergency conditions.", "riverName":"NOLIN RIVER", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":3, "spillwayWidth":300, "stateFedId":"KY03011", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":167, "submitDate":"2023-11-15T14:16:14.943Z", "surfaceArea":5790, "volume":1536136, "widthOfLocks":0, "secondaryWidthOfLocks":null, "yearCompleted":1963, "congDist":"Congressional District 02, Kentucky", "city":"KYROCK", "county":"Edmonson", "aiannh":null, "websiteUrl":"https://www.usace.army.mil/Missions/Civil-Works/Dam-Safety-Program/Article/2870967/dam-safety-program/", "coreTypeIds":null, "damTypeIds":"5;8", "fedConstructionIds":"1", "fedDesignIds":"1", "fedFundingIds":"1", "fedInspectionIds":"1", "fedOperationIds":"1", "fedOtherIds":"1", "fedOwnerIds":"1", "fedRegulatoryIds":"1", "formerNames":null, "foundationTypeIds":null, "nonFederalDamOnFederalId":0, "designerNames":"CELRL", "otherNames":"Nolin Lake", "ownerNames":"USACE - Louisville District", "ownerTypeIds":"3", "primaryDamTypeId":5, "primaryOwnerTypeId":3, "primaryPurposeId":9, "purposeIds":"9;5", "dsacId":3, "femaRegion":"4", "lastEapExcerDate":"2025-03-05T12:00:00.000Z", "dataUpdated":"2025-04-22T12:00:00.000Z", "usaceDistrict":"Louisville District", "noConsequencesId":0, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":1, "damStatusId":2, "huc06":"051100", "doi_region":null, "doi_region_name":"North Atlantic-Appalachian", "doi_region_number":1, "thirtyYearAverage":196.928, "tenthPercentile":148.9576, "ninetiethPercentile":256.0918 }, "id":1144109, "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/1144109?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/1144109?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/1144109?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }