{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -81.1944, 40.4703 ] }, "properties":{ "provider":"LRH", "code":"Leesville", "slug":"leesville", "elevation":927.98, "horizontal_datum":"WGS84", "vertical_datum":"NGVD29", "state":"OH", "kind":"PROJECT", "nearest_city":"Leesville", "public_name":"Leesville Lake", "location_code":547108, "nsid":null, "aliases":{ "Local Loc ID":"LEM", "NIDID":"OH00014" }, "timeseries":[ { "tsid":"Leesville-Lake.Stor.Inst.15Minutes.0.OBS", "label":"Flood Storage", "base_parameter":"Stor", "parameter":"Stor", "unit":"ac-ft", "unit_long_name":"Acre-feet", "latest_time":"2026-04-14T22:15:00Z", "latest_value":21328.5, "delta24h":null, "sort_order":11, "results":null }, { "tsid":"Leesville-Lake.Flow.Inst.15Minutes.0.OBS", "label":"Inflow", "base_parameter":"Flow", "parameter":"Flow", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T22:15:00Z", "latest_value":82.28, "delta24h":null, 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"parameter":"Flow", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T22:15:00Z", "latest_value":268.2, "delta24h":null, "sort_order":7, "results":null }, { "tsid":"Leesville-Lake.Elev.Inst.15Minutes.0.OBS", "label":"Elevation Tailwater", "base_parameter":"Elev", "parameter":"Elev", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T22:15:00Z", "latest_value":967.35, "delta24h":null, "sort_order":3, "results":null }, { "tsid":"Leesville-Lake.Elev.Inst.1Day.0.RUL", "label":"Elevation Rule Curve", "base_parameter":"Elev", "parameter":"Elev", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T17:00:00Z", "latest_value":963.0, "delta24h":null, "sort_order":2, "results":null }, { "tsid":"Leesville-Outflow.Stage.Inst.15Minutes.0.OBS", "label":"Stage Tailwater", "base_parameter":"Stage", "parameter":"Stage", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T22:15:00Z", "latest_value":4.59, "delta24h":null, "sort_order":5, "results":null } ], "name":"Leesville Lake", "hasResopsAverages":"false", "nidId":"OH00014", "nidid":"", "levels":[ { "slug":"elev.bottom of conservation", "label":"Bottom of Conservation", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Leesville.Elev.Inst.0.Bottom of Conservation", "latest_value":928, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.bottom of flood", "label":"Bottom of Flood", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Leesville.Elev.Inst.0.Bottom of Flood", "latest_value":963, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.streambed", "label":"Streambed", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Leesville.Elev.Inst.0.Streambed", "latest_value":920, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of conservation", "label":"Top of Conservation", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Leesville.Elev.Inst.0.Top of Conservation", "latest_value":963, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of dam", "label":"Top of Dam", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Leesville.Elev.Inst.0.Top of Dam", "latest_value":995.1, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of flood", "label":"Top of Flood", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Leesville.Elev.Inst.0.Top of Flood", "latest_value":977.5, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of flood threat", "label":"Top of Flood Threat", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Leesville.Elev.Inst.0.Top of Flood Threat", "latest_value":967, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of inactive", "label":"Top of Inactive", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Leesville.Elev.Inst.0.Top of Inactive", "latest_value":928, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of minimum", "label":"Top of Minimum", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Leesville.Elev.Inst.0.Top of Minimum", "latest_value":958, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of normal", "label":"Top of Normal", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Leesville.Elev.Inst.0.Top of Normal", "latest_value":962.96, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of record", "label":"Top of Record", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Leesville.Elev.Inst.0.Top of Record", "latest_value":971.46, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of recreation", "label":"Top of Recreation", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Leesville.Elev.Inst.0.Top of Recreation", "latest_value":963, "units":"ft", "units_long_name":"Feet" }, { "slug":"stor.bottom of flood", "label":"Bottom of Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Leesville.Stor.Inst.0.Bottom of Flood", "latest_value":16676, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of conservation", "label":"Top of Conservation", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Leesville.Stor.Inst.0.Top of Conservation", "latest_value":16676, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of dam", "label":"Top of Dam", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Leesville.Stor.Inst.0.Top of Dam", "latest_value":62284, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of flood", "label":"Top of Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Leesville.Stor.Inst.0.Top of Flood", "latest_value":37400, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of flood threat", "label":"Top of Flood Threat", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Leesville.Stor.Inst.0.Top of Flood Threat", "latest_value":23750, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of inactive", "label":"Top of Inactive", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Leesville.Stor.Inst.0.Top of Inactive", "latest_value":329, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of minimum", "label":"Top of Minimum", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Leesville.Stor.Inst.0.Top of Minimum", "latest_value":14850, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of normal", "label":"Top of Normal", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Leesville.Stor.Inst.0.Top of Normal", "latest_value":19436.06, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of recreation", "label":"Top of Recreation", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Leesville.Stor.Inst.0.Top of Recreation", "latest_value":19500, "units":"ac-ft", "units_long_name":"Acre-feet" } ], "id":550208, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":null, "damLength":1695, "distance":4, "drainageArea":48, "eapId":1, "dsacAssignedDate":"2019-05-30T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2024-07-25T12:00:00.000Z", "eapLastRevDate":"2011-06-30T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"OH00014", "oldFederalId":"OH00014", "hazardId":4, "hydraulicHeight":63, "inspectionAuthorityId":0, "inspectionDate":"2023-04-27T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":40.4691427160001, "lengthOfLocks":0, "secondaryLengthOfLocks":null, "longitude":-81.194672839, "maxDischarge":19700, "maxStorage":37400, "nidHeight":74, "nidStorage":37400, "normalStorage":19500, "numberOfLocks":0, "operationalStatusDate":"2019-05-30T12:00:00.000Z", "operationalStatusId":1, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"Flood control structures at the Leesville Lake Project includes a rolled earth fill dam with an uncontrolled emergency spillway on the left abutment and outlet works located in the right abutment.", "riskCharSummary":"The dam significantly reduces the risk of flooding to surrounding communities; however, it does not entirely eliminate the risk. Although Leesville Dam has historically performed well, extreme rain events may cause areas downstream to be flooded. Even when the dam operates as intended, downstream flooding could still occur in a very large rainfall event. An event such as this could require unusually large quantities of water to be released. \n\nA 2018 risk assessment for Leesville Dam classified the risk of failure for the entire project system as very low. The risk categorization is based on the risk of rare storm events occurring which would cause more rainfall than the dam can store safely. During such an event, the open spillway to the left (north) of the dam has the potential to pass up to thirty-one thousand cubic feet of water per second. The uncontrolled spillway is designed to pass water to prevent the dam from overtopping and potentially breaching.\n\nWhile the Leesville Dam spillway has never flowed. If operated, it could result in significant flooding in downstream communities from Leesville, OH, and Sherrodsville, OH, to Dover, OH, and New Philadelphia, OH. Depending on the amount of water released, significant damages to houses, buildings, factories, roads, bridges, power, and water supply may occur. Critical infrastructure, including roadways (evacuation routes) and bridges along McGuire Creek and Conotton Creek, may not be passable due to high flood waters during spillway flows. Although the odds of such a storm even occurring are considered extremely unlikely, Leesville Dam has an emergency action plan to lower the risk of life loss if any unanticipated scenarios were to occur. \n\nWhile rare events like these have not occurred to date, if they were to happen, water is likely to reach high elevations quickly and be more than tens of feet deep depending on the location. In the rare event Leesville Dam must pass these extreme flows, follow all directions from emergency officials, including evacuation orders. Failure to do so puts you and your family\u2019s lives at risk.", "riskManagementMeasures":"There are numerous activities that U.S. Army Corps of Engineers conducts on a day-to-day basis to help manage risk at Leesville Dam. The dam is well maintained through continuous operations and maintenance activities, and the U.S. Army Corps of Engineers conducts detailed inspections of the dam during both normal lake levels and during flood events. Supplementing these inspections, the dam has a specialized instrumentation and monitoring system to allow U.S. Army Corps of Engineers staff to continually evaluate the dam for changing conditions. Risk management and emergency response actions are being supported by conducting emergency exercises and dam safety training with U.S. Army Corps of Engineers staff and local and state emergency responders. Additionally, the dam\u2019s Emergency Action Plan is routinely updated to improve emergency response actions, and flood fighting materials are stored onsite in case of an emergency.", "riverName":"MCGUIRE CREEK", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":3, "spillwayWidth":150, "stateFedId":"OH00014", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":74, "submitDate":"2023-12-08T21:03:49.205Z", "surfaceArea":1000, "volume":681000, "widthOfLocks":0, "secondaryWidthOfLocks":null, "yearCompleted":1937, "congDist":"Congressional District 06, Ohio", "city":"SHERRODVILLE", "county":"Carroll", "aiannh":null, "websiteUrl":"https://www.lrh.usace.army.mil/Missions/Civil-Works/Dam-Safety-Program/", "coreTypeIds":"3", "damTypeIds":"8", "fedConstructionIds":"1", "fedDesignIds":"1", "fedFundingIds":"1", "fedInspectionIds":"1", "fedOperationIds":"1", "fedOtherIds":"1", "fedOwnerIds":"1", "fedRegulatoryIds":"1", "formerNames":null, "foundationTypeIds":"3", "nonFederalDamOnFederalId":0, "designerNames":"CELRH", "otherNames":"Leesville Lake", "ownerNames":"USACE - Huntington District", "ownerTypeIds":"3", "primaryDamTypeId":8, "primaryOwnerTypeId":3, "primaryPurposeId":9, "purposeIds":"9;4;5", "dsacId":4, "femaRegion":"5", "lastEapExcerDate":"2024-07-25T12:00:00.000Z", "dataUpdated":"2025-04-21T12:00:00.000Z", "usaceDistrict":"Huntington District", "noConsequencesId":0, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":1, "damStatusId":2, "huc06":"050400", "doi_region":null, "doi_region_name":"Great Lakes", "doi_region_number":3 }, "id":547108, "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/547108?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/547108?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/547108?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }