{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -81.285, 40.52667 ] }, "properties":{ "provider":"LRH", "code":"Atwood", "slug":"atwood", "elevation":890.0, "horizontal_datum":"WGS84", "vertical_datum":"NGVD29", "state":"OH", "kind":"PROJECT", "nearest_city":"New Cumberland", "public_name":"Atwood Lake", "location_code":518108, "nsid":null, "aliases":{ "Local Loc ID":"ATI", "NIDID":"OH00006" }, "timeseries":[ { "tsid":"Atwood-Outflow.Stage.Inst.15Minutes.0.OBS", "label":"Stage Tailwater", "base_parameter":"Stage", "parameter":"Stage", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T21:45:00Z", "latest_value":10.91, "delta24h":null, "sort_order":5, "results":null }, { "tsid":"Atwood-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":29644.0, "delta24h":null, "sort_order":11, "results":null }, { "tsid":"Atwood-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":928.0, "delta24h":null, "sort_order":2, "results":null }, { "tsid":"Atwood-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":343.88, "delta24h":null, "sort_order":6, "results":null }, { "tsid":"Atwood-Lake.Elev.Inst.15Minutes.0.OBS", "label":"Elevation", "base_parameter":"Elev", "parameter":"Elev", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T22:15:00Z", "latest_value":931.58, "delta24h":null, "sort_order":1, "results":null }, { "tsid":"Atwood-Lake.Stor.Inst.15Minutes.0.OBS", "label":"Conservation Storage", "base_parameter":"Stor", "parameter":"Stor", "unit":"ac-ft", "unit_long_name":"Acre-feet", "latest_time":"2026-04-14T22:15:00Z", "latest_value":29644.0, "delta24h":null, "sort_order":13, "results":null }, { "tsid":"Atwood-Lake.Flow.Inst.15Minutes.0.OBS", "label":"Outflow", "base_parameter":"Flow", "parameter":"Flow", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T22:15:00Z", "latest_value":343.88, "delta24h":null, "sort_order":7, "results":null } ], "name":"Atwood Lake", "hasResopsAverages":"true", "nidId":"OH00006", "nidid":"", "levels":[ { "slug":"elev.bottom of conservation", "label":"Bottom of Conservation", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Atwood.Elev.Inst.0.Bottom of Conservation", "latest_value":890, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.bottom of flood", "label":"Bottom of Flood", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Atwood.Elev.Inst.0.Bottom of Flood", "latest_value":927.97, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.streambed", "label":"Streambed", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Atwood.Elev.Inst.0.Streambed", "latest_value":886, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of dam", "label":"Top of Dam", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Atwood.Elev.Inst.0.Top of Dam", "latest_value":955, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of flood", "label":"Top of Flood", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Atwood.Elev.Inst.0.Top of Flood", "latest_value":941, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of flood threat", "label":"Top of Flood Threat", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Atwood.Elev.Inst.0.Top of Flood Threat", "latest_value":930, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of inactive", "label":"Top of Inactive", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Atwood.Elev.Inst.0.Top of Inactive", "latest_value":890, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of normal", "label":"Top of Normal", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Atwood.Elev.Inst.0.Top of Normal", "latest_value":927.65, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of record", "label":"Top of Record", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Atwood.Elev.Inst.0.Top of Record", "latest_value":935.56, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of recreation", "label":"Top of Recreation", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Atwood.Elev.Inst.0.Top of Recreation", "latest_value":928, "units":"ft", "units_long_name":"Feet" }, { "slug":"stor.bottom of flood", "label":"Bottom of Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Atwood.Stor.Inst.0.Bottom of Flood", "latest_value":23600, "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":"Atwood.Stor.Inst.0.Bottom of Flood Control", "latest_value":23600, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of conservation", "label":"Top of Conservation", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Atwood.Stor.Inst.0.Top of Conservation", "latest_value":23600, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of dam", "label":"Top of Dam", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Atwood.Stor.Inst.0.Top of Dam", "latest_value":93890, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of flood", "label":"Top of Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Atwood.Stor.Inst.0.Top of Flood", "latest_value":49700, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of inactive", "label":"Top of Inactive", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Atwood.Stor.Inst.0.Top of Inactive", "latest_value":0, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of normal", "label":"Top of Normal", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Atwood.Stor.Inst.0.Top of Normal", "latest_value":23600, "units":"ac-ft", "units_long_name":"Acre-feet" } ], "id":550239, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":null, "damLength":3700, "distance":4, "drainageArea":70, "eapId":1, "dsacAssignedDate":"2018-05-14T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2024-07-25T12:00:00.000Z", "eapLastRevDate":"2009-11-03T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"OH00006", "oldFederalId":"OH00006", "hazardId":4, "hydraulicHeight":55, "inspectionAuthorityId":0, "inspectionDate":"2021-04-22T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":40.5266258, "lengthOfLocks":0, "secondaryLengthOfLocks":null, "longitude":-81.2861344039999, "maxDischarge":12800, "maxStorage":49700, "nidHeight":65, "nidStorage":49700, "normalStorage":23600, "numberOfLocks":0, "operationalStatusDate":"2018-05-14T12:00:00.000Z", "operationalStatusId":2, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"Atwood Lake is located on the Indian Fork of the Conotton Creek about 14 miles upstream of Dover Dam and 4 miles south of New Cumberland, Ohio. The lake was constructed primarily for flood control, recreation, fish, and wildlife management. The Atwood Dam is a rolled soil and rock fill with a clay core. The dam measures 65 feet high, 3,700 feet long, with a top width of 30 feet, and a base width of 360 feet. The project acts as part of a 14-reservoir system of dams designed to hold back water during flood events to reduce the risk of downstream flooding within the Muskingum River Basin in southeastern Ohio. Construction of the dam begin in August 1935 and was completed in September 1937.", "riskCharSummary":"A breach of Atwood Dam would cause significant flooding downstream in the cities of New Cumberland, New Philadelphia, New Comerstown, Coshocton and Zanesville. The primary failure risk associated with Atwood Dam is leak erosion along the left abutment of the dam. There may exist an open defect along the bedrock adjoining the left abutment of the dam which may allow water to pass during high pool levels. As water passes through the defect, erosion could progress and eventually cause an uncontrolled release of water. \n\nRegional impacts of a dam failure would be observed as far as Zanesville, Ohio. Critical infrastructure such as electrical substations, emergency management, transportation and airports would be significantly affected. The Tuscarawas river at New Philadelphia would be almost a mile wide. Models show that the most significant damage would occur between 7 to 15 miles downstream of Atwood Dam.", "riskManagementMeasures":"There are numerous activities that USACE conducts on a day-to-day basis to help manage risk at Atwood Dam. The dam is well maintained through continuous operations and maintenance activities, and USACE 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 USACE staff to continually evaluate the dam for changing conditions. Robustness of the dam is being improved with implementation of an Interim Risk Reduction Measures Plan (IRRMP) to address specific risk concerns while long-term remedial measures are pursued. Risk management and emergency response actions are being supported by conducting emergency exercises and dam safety training with USACE staff and local and state emergency responders.", "riverName":"INDIAN FORK OF CONOTTON CREEK", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":3, "spillwayWidth":95, "stateFedId":"OH00006", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":65, "submitDate":"2023-12-20T00:00:00.000Z", "surfaceArea":1540, "volume":276200, "widthOfLocks":0, "secondaryWidthOfLocks":null, "yearCompleted":1936, "congDist":"Congressional District 06, Ohio", "city":"NEW CUMBERLAND", "county":"Tuscarawas", "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":"1;3", "nonFederalDamOnFederalId":0, "designerNames":"CELRH", "otherNames":"Atwood Lake", "ownerNames":"USACE - Huntington District", "ownerTypeIds":"3", "primaryDamTypeId":8, "primaryOwnerTypeId":3, "primaryPurposeId":9, "purposeIds":"9;4;5", "dsacId":3, "femaRegion":"5", "lastEapExcerDate":"2024-07-25T12:00:00.000Z", "dataUpdated":"2025-06-24T12:00:00.000Z", "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, "thirtyYearAverage":30.4909, "tenthPercentile":29.0366, "ninetiethPercentile":34.428 }, "id":518108, "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/518108?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/518108?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/518108?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }