{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -86.70889, 38.43417 ] }, "properties":{ "provider":"LRL", "code":"Patoka", "slug":"patoka", "elevation":536.0, "horizontal_datum":"NAD27", "vertical_datum":"NGVD29", "state":"IN", "kind":"PROJECT", "nearest_city":"Cuzco, IN", "public_name":"Patoka Lake", "location_code":1153109, "nsid":null, "aliases":{ "NIDID":"IN03018" }, "timeseries":[ { "tsid":"Patoka.Stor.Inst.1Hour.0.lrldlb-comp", "label":"Conservation Storage", "base_parameter":"Stor", "parameter":"Stor", "unit":"ac-ft", "unit_long_name":"Acre-feet", "latest_time":"2026-04-14T18:00:00Z", "latest_value":157452.0, "delta24h":null, "sort_order":13, "results":null }, { "tsid":"Patoka.Stor.Inst.1Hour.0.lrldlb-comp", "label":"Flood Storage", "base_parameter":"Stor", "parameter":"Stor", "unit":"ac-ft", "unit_long_name":"Acre-feet", "latest_time":"2026-04-14T18:00:00Z", "latest_value":157452.0, "delta24h":null, "sort_order":11, "results":null }, { "tsid":"Patoka.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":"2026-04-14T18:00:00Z", "latest_value":0.0, "delta24h":null, "sort_order":6, "results":null }, { "tsid":"Patoka.Elev.Inst.0.0.lrldlb-rev", "label":"Elevation", "base_parameter":"Elev", "parameter":"Elev", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T18:15:00Z", "latest_value":533.49, "delta24h":null, "sort_order":1, "results":null }, { "tsid":"Patoka.Precip.Total.~1Day.1Day.lrldlb-rev", "label":"Precipitation", "base_parameter":"Precip", "parameter":"Precip", "unit":"in", "unit_long_name":"Inches", "latest_time":"2026-04-14T10:00:00Z", "latest_value":0.0, "delta24h":null, "sort_order":16, "results":null }, { "tsid":"Patoka.Flow-Outflow.Inst.0.0.lrldlb-comp", "label":"Outflow", "base_parameter":"Flow", "parameter":"Flow-Outflow", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T18:15:00Z", "latest_value":332.14, "delta24h":null, "sort_order":7, "results":null } ], "name":"Patoka Lake", "hasResopsAverages":"true", "nidId":"IN03018", "nidid":"", "levels":[ { "slug":"elev.bottom of flood", "label":"Bottom of Flood", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Patoka.Elev.Inst.0.Bottom of Flood", "latest_value":532, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.bottom of flood control", "label":"Bottom of Flood Control", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Patoka.Elev.Inst.0.Bottom of Flood Control", "latest_value":532, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.bottom of inlet", "label":"Bottom of Inlet", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Patoka.Elev.Inst.0.Bottom of Inlet", "latest_value":483.5, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.bottom of normal", "label":"Bottom of Normal", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Patoka.Elev.Inst.0.Bottom of Normal", "latest_value":532, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.guide curve", "label":"Guide Curve", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Patoka.Elev.Inst.0.Guide Curve", "latest_value":536, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.streambed", "label":"Streambed", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Patoka.Elev.Inst.0.Streambed", "latest_value":483.5, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of dam", "label":"Top of Dam", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Patoka.Elev.Inst.0.Top of Dam", "latest_value":564, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of flood", "label":"Top of Flood", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Patoka.Elev.Inst.0.Top of Flood", "latest_value":548, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of normal", "label":"Top of Normal", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Patoka.Elev.Inst.0.Top of Normal", "latest_value":536, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of overflow", "label":"Top of Overflow", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Patoka.Elev.Inst.0.Top of Overflow", "latest_value":548, "units":"ft", "units_long_name":"Feet" }, { "slug":"stor.bottom of flood", "label":"Bottom of Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Patoka.Stor.Inst.0.Bottom of Flood", "latest_value":145230, "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":"Patoka.Stor.Inst.0.Bottom of Flood Control", "latest_value":145230, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.bottom of inlet", "label":"Bottom of Inlet", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Patoka.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":"Patoka.Stor.Inst.0.Bottom of Normal", "latest_value":145230, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.guide curve", "label":"Guide Curve", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Patoka.Stor.Inst.0.Guide Curve", "latest_value":178730, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.streambed", "label":"Streambed", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Patoka.Stor.Inst.0.Streambed", "latest_value":0, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of flood", "label":"Top of Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Patoka.Stor.Inst.0.Top of Flood", "latest_value":298380, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of normal", "label":"Top of Normal", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Patoka.Stor.Inst.0.Top of Normal", "latest_value":178730, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of overflow", "label":"Top of Overflow", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Patoka.Stor.Inst.0.Top of Overflow", "latest_value":298380, "units":"ac-ft", "units_long_name":"Acre-feet" } ], "id":550329, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":null, "damLength":1500, "distance":13, "drainageArea":168, "eapId":1, "dsacAssignedDate":"2023-06-27T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2024-04-03T12:00:00.000Z", "eapLastRevDate":"2024-07-01T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"IN03018", "oldFederalId":"IN03018", "hazardId":4, "hydraulicHeight":85, "inspectionAuthorityId":0, "inspectionDate":"2022-08-05T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":38.4343385460001, "lengthOfLocks":0, "secondaryLengthOfLocks":null, "longitude":-86.7075898369999, "maxDischarge":40000, "maxStorage":301640, "nidHeight":145, "nidStorage":301640, "normalStorage":167290, "numberOfLocks":0, "operationalStatusDate":"2023-06-27T12:00:00.000Z", "operationalStatusId":1, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The U.S. Army Corps of Engineers (USACE) completed Patoka Lake Dam in 1978. Patoka Lake Dam is located in southwestern Indiana, approximately 75 miles northwest of Louisville, Kentucky, and 12 miles northeast of Jasper, Indiana. The dam is located on the Patoka River, approximately 119 miles above the mouth of the Patoka River, a tributary of the Wabash River. The project consists of a 1550-foot-long earth and rock filled embankment with a maximum height of 145 feet, a gate-controlled outlet works, a 370-foot wide uncontrolled open-cut spillway, and a 1750-foot-long earth and rockfill dike. The project reduces flood damages approximately 118 miles along the Patoka River. The project has a drainage area above the dam of approximately 168 square miles. At spillway crest, the reservoir pool extends up the Patoka River a distance of approximately 31 miles. The record pool occurred in May 2011 where the pool elevation reached 549.7 feet, which is 1.7 feet above the spillway sill elevation of 547.62 feet NAVD88.", "riskCharSummary":"USACE completed a risk assessment of Patoka Lake Dam in June 2023 that characterizes the risk of the project as a Dam Safety Action Classification (DSAC) 4 which is considered Low relative to the dams USACE owns and operates. The dam provides flood reduction to downstream communities. Even when the dam operates as intended, downstream flooding can still occur if a very large rainfall event were to result in unusually large quantities of water to flow through the dam spillway. There is also a very unlikely, but far more disastrous scenario that would produce significant flooding, which is internal erosion of the dam\u2019s and/or dike\u2019s embankment during a period of high reservoir levels that could lead to a breach of the dam. In this scenario, an uncontrolled surge of water could flow out of the reservoir, resulting in potentially deadly flooding along the Patoka River.\n\nIf a dam failure occurred, water from the reservoir would flood downstream communities. The largest impacts would be to the communities of Dubois, Jasper, and Patoka, Indiana. Potentially impacted facilities include fire stations, police stations, water treatment plant, electrical substations and radio station located in Jasper. No critical facilities are expected to be impacted in Dubois or Patoka.", "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 monitors on-site instruments and conducts regular inspections to ensure the health and integrity of the dam. The frequency of these inspections 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.", "riverName":"PATOKA RIVER", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":3, "spillwayWidth":370, "stateFedId":"IN03018", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":145, "submitDate":"2023-11-29T20:52:36.281Z", "surfaceArea":8880, "volume":1440875, "widthOfLocks":0, "secondaryWidthOfLocks":null, "yearCompleted":1978, "congDist":"Congressional District 08, Indiana", "city":"JASPER", "county":"Dubois", "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":"Patoka Lake", "ownerNames":"USACE - Louisville District", "ownerTypeIds":"3", "primaryDamTypeId":5, "primaryOwnerTypeId":3, "primaryPurposeId":9, "purposeIds":"9;12;5;8", "dsacId":4, "femaRegion":"5", "lastEapExcerDate":"2024-08-15T12:00:00.000Z", "dataUpdated":"2025-03-11T12:00:00.000Z", "usaceDistrict":"Louisville District", "noConsequencesId":0, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":1, "damStatusId":2, "huc06":"051202", "doi_region":null, "doi_region_name":"Great Lakes", "doi_region_number":3, "thirtyYearAverage":225.0096, "tenthPercentile":187.038, "ninetiethPercentile":309.4764 }, "id":1153109, "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/1153109?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/1153109?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/1153109?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }