{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -88.78059, 39.40951 ] }, "properties":{ "provider":"MVS", "code":"Lk Shelbyville", "slug":"lk%20shelbyville", "elevation":null, "horizontal_datum":"", "vertical_datum":"", "state":"IL", "kind":"PROJECT", "nearest_city":"Shelbyville", "public_name":"Shelbyville Lake Project", "location_code":553018, "nsid":null, "aliases":{ "NIDID":"IL00118" }, "timeseries":[ { "tsid":"Lk Shelbyville-Kaskaskia.Flow-Out.Ave.~1Day.1Day.lakerep-rev", "label":"Outflow", "base_parameter":"Flow", "parameter":"Flow-Out", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-08-25T05:00:00Z", "latest_value":710.0, "delta24h":null, "sort_order":7, "results":null }, { "tsid":"Lk Shelbyville-Kaskaskia.Stor.Inst.30Minutes.0.RatingCOE", "label":"Conservation Storage", "base_parameter":"Stor", "parameter":"Stor", "unit":"ac-ft", "unit_long_name":"Acre-feet", "latest_time":"2026-08-25T22:00:00Z", "latest_value":210695.0, "delta24h":null, "sort_order":13, "results":null }, { "tsid":"Lk Shelbyville-Kaskaskia.Stage.Inst.30Minutes.0.29", "label":"Stage Tailwater", "base_parameter":"Stage", "parameter":"Stage", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-08-25T22:00:00Z", "latest_value":600.76, "delta24h":null, "sort_order":5, "results":null }, { "tsid":"Shelbyville TW-Kaskaskia.Elev.Inst.30Minutes.0.lrgsShef-rev", "label":"Elevation Tailwater", "base_parameter":"Elev", "parameter":"Elev", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-08-25T22:00:00Z", "latest_value":538.19, "delta24h":null, "sort_order":3, "results":null }, { "tsid":"Lk Shelbyville-Kaskaskia.Elev.Inst.30Minutes.0.smoothed", "label":"Elevation", "base_parameter":"Elev", "parameter":"Elev", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-08-25T10:00:00Z", "latest_value":600.78, "delta24h":null, "sort_order":1, "results":null }, { "tsid":"Lk Shelbyville-Kaskaskia.Stor.Inst.30Minutes.0.RatingCOE", "label":"Flood Storage", "base_parameter":"Stor", "parameter":"Stor", "unit":"ac-ft", "unit_long_name":"Acre-feet", "latest_time":"2026-08-25T22:00:00Z", "latest_value":210695.0, "delta24h":null, "sort_order":11, "results":null }, { "tsid":"Lk Shelbyville-Kaskaskia.Volt-Battery.Inst.30Minutes.0.lrgsShef-raw", "label":"Voltage", "base_parameter":"Volt", "parameter":"Volt-Battery", "unit":"volt", "unit_long_name":"Volts", "latest_time":"2026-08-10T14:30:00Z", "latest_value":13.0, "delta24h":null, "sort_order":10, "results":null }, { "tsid":"Lk Shelbyville-Kaskaskia.Flow-In.Ave.~1Day.1Day.lakerep-rev", "label":"Inflow", "base_parameter":"Flow", "parameter":"Flow-In", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-08-24T05:00:00Z", "latest_value":650.0, "delta24h":null, "sort_order":6, "results":null }, { "tsid":"Lk Shelbyville-Kaskaskia.Precip.Inst.30Minutes.0.lrgsShef-rev", "label":"Precipitation", "base_parameter":"Precip", "parameter":"Precip", "unit":"in", "unit_long_name":"Inches", "latest_time":"2026-08-25T22:00:00Z", "latest_value":28.92, "delta24h":null, "sort_order":16, "results":null }, { "tsid":"Lk Shelbyville-Kaskaskia.Stage.Inst.30Minutes.0.29", "label":"Stage", "base_parameter":"Stage", "parameter":"Stage", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-08-25T22:00:00Z", "latest_value":600.76, "delta24h":null, "sort_order":4, "results":null } ], "name":"Shelbyville Lake Project", "hasResopsAverages":"true", "nidId":"IL00118", "nidid":"", "levels":[ { "slug":"elev.bankfull", "label":"Bankfull", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Lk Shelbyville.Elev.Inst.0.Bankfull", "latest_value":610, "units":"ft", "units_long_name":"Feet", "type":"CONSTANT" }, { "slug":"elev.bottom of conservation", "label":"Bottom of Conservation", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Lk Shelbyville.Elev.Inst.0.Bottom of Conservation", 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"latest_value":599.7, "units":"ft", "units_long_name":"Feet", "type":"CONSTANT" }, { "slug":"elev.top of dam", "label":"Top of Dam", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Lk Shelbyville.Elev.Inst.0.Top of Dam", "latest_value":643, "units":"ft", "units_long_name":"Feet", "type":"CONSTANT" }, { "slug":"elev.top of flood", "label":"Top of Flood", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Lk Shelbyville.Elev.Inst.0.Top of Flood", "latest_value":626.5, "units":"ft", "units_long_name":"Feet", "type":"CONSTANT" }, { "slug":"elev.top of guide curve", "label":"Top of Guide Curve", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Lk Shelbyville.Elev.Inst.0.Top of Guide Curve", "latest_value":599.7, "units":"ft", "units_long_name":"Feet", "type":"REGULAR" }, { "slug":"elev.top of inactive", "label":"Top of Inactive", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Lk Shelbyville.Elev.Inst.0.Top of Inactive", "latest_value":573, "units":"ft", "units_long_name":"Feet", "type":"CONSTANT" }, { "slug":"elev.top of induced surcharge", "label":"Top of Induced Surcharge", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Lk Shelbyville.Elev.Inst.0.Top of Induced Surcharge", "latest_value":630.5, "units":"ft", "units_long_name":"Feet", "type":"CONSTANT" }, { "slug":"elev.top of surcharge", "label":"Top of Surcharge", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Lk Shelbyville.Elev.Inst.0.Top of Surcharge", "latest_value":638.2, "units":"ft", "units_long_name":"Feet", "type":"CONSTANT" }, { "slug":"stage.fill", "label":"Fill", "parameter":"Stage", "base_parameter":"Stage", "tsid":"Lk Shelbyville.Stage.Inst.0.Fill", "latest_value":0, "units":"ft", "units_long_name":"Feet", "type":"CONSTANT" }, { "slug":"stage.flood", "label":"Flood", "parameter":"Stage", "base_parameter":"Stage", "tsid":"Lk Shelbyville.Stage.Inst.0.Flood", "latest_value":909, "units":"ft", "units_long_name":"Feet", "type":"CONSTANT" }, { 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"type":"CONSTANT" }, { "slug":"stor.top of dam", "label":"Top of Dam", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Lk Shelbyville.Stor.Inst.0.Top of Dam", "latest_value":1207031, "units":"ac-ft", "units_long_name":"Acre-feet", "type":"CONSTANT" }, { "slug":"stor.top of flood", "label":"Top of Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Lk Shelbyville.Stor.Inst.0.Top of Flood", "latest_value":664031, "units":"ac-ft", "units_long_name":"Acre-feet", "type":"CONSTANT" }, { "slug":"stor.top of guide curve", "label":"Top of Guide Curve", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Lk Shelbyville.Stor.Inst.0.Top of Guide Curve", "latest_value":199465, "units":"ac-ft", "units_long_name":"Acre-feet", "type":"REGULAR" }, { "slug":"stor.top of inactive", "label":"Top of Inactive", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Lk Shelbyville.Stor.Inst.0.Top of Inactive", "latest_value":27690, "units":"ac-ft", "units_long_name":"Acre-feet", "type":"CONSTANT" }, { "slug":"stor.top of induced surcharge", "label":"Top of Induced Surcharge", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Lk Shelbyville.Stor.Inst.0.Top of Induced Surcharge", "latest_value":771131, "units":"ac-ft", "units_long_name":"Acre-feet", "type":"CONSTANT" }, { "slug":"stor.top of surcharge", "label":"Top of Surcharge", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Lk Shelbyville.Stor.Inst.0.Top of Surcharge", "latest_value":1015931, "units":"ac-ft", "units_long_name":"Acre-feet", "type":"CONSTANT" } ], "id":549747, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":108, "damLength":3025, "distance":null, "drainageArea":1054, "eapId":1, "dsacAssignedDate":"2024-04-16T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2024-10-15T12:00:00.000Z", "eapLastRevDate":"2018-02-28T12:00:00.000Z", "enforcementAuthorityId":1, "federalId":"IL00118", "oldFederalId":"IL00118", "hazardId":4, "hydraulicHeight":102, "inspectionAuthorityId":1, "inspectionDate":"2023-05-25T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":1, "latitude":39.4091246080001, "lengthOfLocks":0, "secondaryLengthOfLocks":null, "longitude":-88.780380266, "maxDischarge":162500, "maxStorage":1026546, "nidHeight":138, "nidStorage":1026546, "normalStorage":207832, "numberOfLocks":0, "operationalStatusDate":"2015-06-03T12:00:00.000Z", "operationalStatusId":1, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":1, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The U.S. Army Corps of Engineers (USACE) operates and maintains more than 700 dams across the United States. Shelbyville Dam is a high hazard dam located at river mile 197.9 on the Kaskaskia River in Shelby County, Illinois, approximately one-half mile east and one-fourth mile north of the city of Shelbyville. The dam is located 103.7 miles above Carlyle Lake. The Shelbyville Reservoir was authorized by the Flood Control Act of 3 July 1958 for flood control and related purposes. This act authorized the plan of improvement for the Kaskaskia River substantially as recommended by the Chief of Engineers in House Document No. 232, 85th Congress, first session; which plan consists of a dam and reservoir at Shelbyville (mile 221.8), levees between Cowden and Vandalia (miles 148-191), a dam and reservoir at Carlyle (mile 107), levees between Carlyle and New Athens (miles 49-103), and protection for the town of New Athens (mile 41). The contract for construction of the main dam was awarded 31 March 1966. The project's main purposes are flood control, fish and wildlife conservation, recreation, downstream water quality control, water supply, and to augment stream flow for navigation purposes on the lower 32 miles of the Kaskaskia River and the Mississippi River.", "riskCharSummary":"USACE completed a risk assessment for Shelbyville Dam in 2023 which evaluated the dam as a Dam Safety Action Classification (DSAC) 5, which characterizes the risk as very low and is USACE\u2019s lowest risk category. The dam significantly reduces the risk of flooding to downstream and surrounding communities but does not entirely eliminate all risk. Although the project has historically performed well, an extreme precipitation event may cause flooding, even though the dam is performing as designed. Failure of the dam is defined as the sudden and uncontrolled release of water. Two potential failure modes were identified by the risk assessment with the most probable being a sinkhole developing within the dam embankment from a mine shaft that was missed by the mine treating program during construction. This could lower the crest of the dam leading to overtopping. The second, which is significantly less probable, is overtopping due to an extremely rare precipitation event for a duration that leads to breach. Although these scenarios are considered extremely unlikely, USACE is taking a proactive approach of monitoring for signs of distress, calculating pool fluctuations and adjusting operations based off weather forecast to prevent unnecessary risk, and ensuring preparedness with local community emergency personnel.", "riskManagementMeasures":"USACE manages dam-related flood risks by continually monitoring the condition and health of the dam, prioritizing impactful risk-reduction activities, and engaging with upstream and downstream emergency managers, as well as members of the public, to raise awareness and support preparedness for a potential dam-related emergency. USACE works closely with local emergency managers to share what is known about the dam and support the development of emergency and evacuation plans. USACE regularly updates the emergency action plan for the dam which include inundation maps that have been released to the public via the NID. \n\nIn addition to emergency preparedness, routine instrumentation measurements, inspections, and risk assessments are conducted to ensure the structures are performing as designed. Increased surveillance occurs when hazards exceed pre-established thresholds. Regular maintenance and repairs are performed as necessary to keep the dam functioning properly. Subject matter experts are monitoring weather patterns, expected precipitation, regional conditions, and pool levels to anticipate impacts, make projections, and advise on deviations in order to further reduce the risk of an extreme loading event.", "riverName":"KASKASKIA RIVER", "separateStructuresCount":1, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":1, "spillwayWidth":156, "stateFedId":"IL00118", "stateRegulatoryAgency":null, "stateRegulatedId":1, "structuralHeight":138, "submitDate":"2023-06-28T16:58:33.741Z", "surfaceArea":11100, "volume":2500000, "widthOfLocks":0, "secondaryWidthOfLocks":null, "yearCompleted":1970, "congDist":"Congressional District 15, Illinois", "city":"SHELBYVILLE", "county":"Shelby", "aiannh":null, "websiteUrl":"https://www.usace.army.mil/Missions/Civil-Works/Dam-Safety-Program/Article/2870967/dam-safety-program/", "coreTypeIds":"3", "damTypeIds":"11;8;9", "fedConstructionIds":"1", "fedDesignIds":"1", "fedFundingIds":"1", "fedInspectionIds":"1", "fedOperationIds":"1", "fedOtherIds":"1", "fedOwnerIds":"1", "fedRegulatoryIds":"1", "formerNames":null, "foundationTypeIds":"1;3", "nonFederalDamOnFederalId":0, "designerNames":"CEMVS", "otherNames":"Lake Shelbyville", "ownerNames":"USACE - St. Louis District", "ownerTypeIds":"3", "primaryDamTypeId":11, "primaryOwnerTypeId":3, "primaryPurposeId":9, "purposeIds":"9;12;3;4;5;8", "dsacId":5, "femaRegion":"5", "lastEapExcerDate":"2024-08-15T12:00:00.000Z", "dataUpdated":"2025-02-04T12:00:00.000Z", "usaceDistrict":"St. Louis District", "noConsequencesId":0, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":1, "damStatusId":2, "huc06":"071402", "doi_region":null, "doi_region_name":"Great Lakes", "doi_region_number":3, "thirtyYearAverage":277.6247, "tenthPercentile":239.6041, "ninetiethPercentile":318.7569 }, "id":553018, "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/553018?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/553018?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/553018?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }