{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -75.23019, 42.32887 ] }, "properties":{ "provider":"NAB", "code":"East Sidney", "slug":"east%20sidney", "elevation":1100.0, "horizontal_datum":"WGS84", "vertical_datum":"LOCAL", "state":"NY", "kind":"PROJECT", "nearest_city":"Franklin", "public_name":"East Sidney Lake", "location_code":245020, "nsid":null, "aliases":{ "NIDID":"NY01211", "CBT Station ID":"bgm", "SHEF Location ID":"ESDN6", "DCP Platform ID":"CE596BF8", "USGS Station Number":"01499500", "CWMS Legacy Naming":"East Sidney", "CWMS Standard Naming":"East Sidney" }, "timeseries":[ { "tsid":"East Sidney.Flow-Out.Inst.15Minutes.0.Best-NAB-Computed", "label":"Outflow", "base_parameter":"Flow", "parameter":"Flow-Out", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T13:00:00Z", "latest_value":204.48, "delta24h":null, "sort_order":7, "results":null }, { "tsid":"East Sidney.Elev.Inst.15Minutes.0.Best-NAB", "label":"Elevation", "base_parameter":"Elev", "parameter":"Elev", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T22:00:00Z", "latest_value":1140.51, "delta24h":null, "sort_order":1, "results":null }, { "tsid":"East Sidney.%-FloodControl.Inst.15Minutes.0.Best-NAB-Computed", "label":"Percent Flood Pool", "base_parameter":"%", "parameter":"%-FloodControl", "unit":"%", "unit_long_name":"Percent", "latest_time":"2026-04-14T13:00:00Z", "latest_value":0.26, "delta24h":null, "sort_order":12, "results":null }, { "tsid":"East Sidney.Precip.Inst.15Minutes.0.Best-NAB", "label":"Precipitation", "base_parameter":"Precip", "parameter":"Precip", "unit":"in", "unit_long_name":"Inches", "latest_time":"2026-04-14T22:00:00Z", "latest_value":33.04, "delta24h":null, "sort_order":16, "results":null }, { "tsid":"East Sidney.Temp-Air.Inst.15Minutes.0.Best-NAB", "label":"Air Temperature", "base_parameter":"Temp", "parameter":"Temp-Air", "unit":"F", "unit_long_name":"Fahrenheit", "latest_time":"2026-04-14T22:00:00Z", "latest_value":78.9, "delta24h":null, "sort_order":22, "results":null }, { "tsid":"East Sidney.Stor.Inst.15Minutes.0.Best-NAB", "label":"Flood Storage", "base_parameter":"Stor", "parameter":"Stor", "unit":"ac-ft", "unit_long_name":"Acre-feet", "latest_time":"2026-04-14T22:00:00Z", "latest_value":1307.89, "delta24h":null, "sort_order":11, "results":null } ], "name":"East Sidney Lake", "hasResopsAverages":"false", "nidId":"NY01211", "nidid":"", "levels":[ { "slug":"elev.25% flood storage", "label":"25% Flood Storage", "parameter":"Elev", "base_parameter":"Elev", "tsid":"East Sidney.Elev.Inst.0.25% Flood Storage", "latest_value":1170.45, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.5% flood storage", "label":"5% Flood Storage", "parameter":"Elev", "base_parameter":"Elev", "tsid":"East Sidney.Elev.Inst.0.5% Flood Storage", "latest_value":1150.02, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.50% flood storage", "label":"50% Flood Storage", "parameter":"Elev", "base_parameter":"Elev", "tsid":"East Sidney.Elev.Inst.0.50% Flood Storage", "latest_value":1185.01, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.maximum", "label":"Maximum", "parameter":"Elev", "base_parameter":"Elev", "tsid":"East Sidney.Elev.Inst.0.Maximum", "latest_value":1222.5, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.record", "label":"Record", "parameter":"Elev", "base_parameter":"Elev", "tsid":"East Sidney.Elev.Inst.0.Record", "latest_value":1204.35, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.spillway crest", "label":"Spillway Crest", "parameter":"Elev", "base_parameter":"Elev", "tsid":"East Sidney.Elev.Inst.0.Spillway Crest", "latest_value":1203, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.streambed", "label":"Streambed", "parameter":"Elev", "base_parameter":"Elev", "tsid":"East Sidney.Elev.Inst.0.Streambed", "latest_value":1098.5, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of conservation", "label":"Top of Conservation", "parameter":"Elev", "base_parameter":"Elev", "tsid":"East Sidney.Elev.Inst.0.Top of Conservation", "latest_value":1140, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of conservation early drawdown option", "label":"Top of Conservation Early Drawdown Option", "parameter":"Elev", "base_parameter":"Elev", "tsid":"East Sidney.Elev.Inst.0.Top of Conservation Early Drawdown Option", "latest_value":1140, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of dam", "label":"Top of Dam", "parameter":"Elev", "base_parameter":"Elev", "tsid":"East Sidney.Elev.Inst.0.Top of Dam", "latest_value":1228.5, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of flood control", "label":"Top of Flood Control", "parameter":"Elev", "base_parameter":"Elev", "tsid":"East Sidney.Elev.Inst.0.Top of Flood Control", "latest_value":1203, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of inactive", "label":"Top of Inactive", "parameter":"Elev", "base_parameter":"Elev", "tsid":"East Sidney.Elev.Inst.0.Top of Inactive", "latest_value":1115, "units":"ft", "units_long_name":"Feet" }, { "slug":"stor.25% flood storage", "label":"25% Flood Storage", "parameter":"Stor", "base_parameter":"Stor", "tsid":"East Sidney.Stor.Inst.0.25% Flood Storage", "latest_value":9192.44, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.streambed", "label":"Streambed", "parameter":"Stor", "base_parameter":"Stor", "tsid":"East Sidney.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":"East Sidney.Stor.Inst.0.Top of Conservation", "latest_value":1252.1, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of dam", "label":"Top of Dam", "parameter":"Stor", "base_parameter":"Stor", "tsid":"East Sidney.Stor.Inst.0.Top of Dam", "latest_value":45408.23, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of flood control", "label":"Top of Flood Control", "parameter":"Stor", "base_parameter":"Stor", "tsid":"East Sidney.Stor.Inst.0.Top of Flood Control", "latest_value":33013.47, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of inactive", "label":"Top of Inactive", "parameter":"Stor", "base_parameter":"Stor", "tsid":"East Sidney.Stor.Inst.0.Top of Inactive", "latest_value":14.1, "units":"ac-ft", "units_long_name":"Acre-feet" } ], "id":550192, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":130, "damLength":2010, "distance":null, "drainageArea":102, "eapId":1, "dsacAssignedDate":"2022-08-11T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2021-09-08T12:00:00.000Z", "eapLastRevDate":"2021-09-08T12:00:00.000Z", "enforcementAuthorityId":1, "federalId":"NY01211", "oldFederalId":"NY01211", "hazardId":4, "hydraulicHeight":123, "inspectionAuthorityId":1, "inspectionDate":"2021-07-14T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":1, "latitude":42.330719, "lengthOfLocks":0, "secondaryLengthOfLocks":null, "longitude":-75.229083, "maxDischarge":81000, "maxStorage":58350, "nidHeight":130, "nidStorage":58350, "normalStorage":2836, "numberOfLocks":0, "operationalStatusDate":"2022-08-11T12:00:00.000Z", "operationalStatusId":1, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":1, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The U.S. Army Corps of Engineers (USACE) built East Sidney Dam in 1950 to reduce the risk of flooding to downstream communities by storing water during major flood events. It is located on Ouleout Creek in Delaware County, NY, approximately four miles upstream of the confluence with the Susquehanna River, six miles upstream of the village of Unadilla and eleven miles upstream of the village of Sidney. The Dam consists of an earthen embankment and concrete structure that create East Sidney Lake which provides recreation benefits. Releases are made by gates which discharge flow through conduits in the concrete structure of the dam. The top of the concrete structure serves as an ungated spillway which can release large flows during significant flood events.", "riskCharSummary":"Although East Sidney Dam reduces the risk of flooding to downstream communities, it does not eliminate the risk of flooding. The most likely scenario that could result in downstream flooding would be a high-volume release of water from the dam\u2019s spillway during significant storm events. To maintain the structural integrity of the dam when the water level in the reservoir gets high, the spillway releases water to Ouleout Creek. The amount of water being released could be great enough to cause flooding in downstream communities. Such higher releases from the dam could create conditions similar to how the river might behave if the dam did not exist.\n\nThere are also unlikely, but far more devastating scenarios involving breach of the dam that would produce significant flooding. This could involve situations such as: a rare, extreme rainfall event resulting in water flowing over the earthen portion of the dam, eroding the dam and leading to a breach of the dam; or unexpected instability and movement of portions of the concrete structure leading to a breach; or unexpected behavior of seepage through the dam, eroding soil from within the embankment and leading to a breach of the dam. If a breach were to occur, an uncontrolled surge of water would flow out of the reservoir, flooding downstream communities. Unadilla, Sidney, and adjacent communities are in the most immediate danger in the event of a flood. Other communities along Ouleout Creek and the Susquehanna River would also be impacted.\n\nIn any of the scenarios described above, the downstream floodwater would be swift and deep, overflowing levees and destroying buildings and key infrastructure. Those caught unaware and/or unable to evacuate could perish. In the less likely dam breach scenarios, the water depth, property damage, and lives lost would likely be far greater.", "riskManagementMeasures":"The U.S. Army Corps of Engineers (USACE) performs ongoing activities to ensure the integrity of East Sidney Dam and to manage and reduce risk to the downstream communities. The dam is well-maintained, inspected, and monitored. The frequency of inspection and monitoring increases during high water events. USACE regularly updates the Emergency Action Plan for the dam and performs emergency response exercises with Federal, state, and local emergency managers to remain prepared to respond to flood events affecting the dam. USACE also closely follows rainfall forecasts to determine when high water events may occur to provide information for any necessary flood warnings.", "riverName":"OULEOUT CREEK", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":3, "spillwayWidth":240, "stateFedId":"NY01211", "stateRegulatoryAgency":null, "stateRegulatedId":1, "structuralHeight":130, "submitDate":"2021-05-28T12:00:00.000Z", "surfaceArea":210, "volume":463000, "widthOfLocks":0, "secondaryWidthOfLocks":null, "yearCompleted":1950, "congDist":"Congressional District 19, New York", "city":"UNADILLA", "county":"Delaware", "aiannh":null, "websiteUrl":"https://www.usace.army.mil/Missions/Civil-Works/Dam-Safety-Program/Article/2870967/dam-safety-program/", "coreTypeIds":"2", "damTypeIds":"9;8", "fedConstructionIds":"1", "fedDesignIds":"1", "fedFundingIds":"1", "fedInspectionIds":"1", "fedOperationIds":"1", "fedOtherIds":"1", "fedOwnerIds":"1", "fedRegulatoryIds":"1", "formerNames":null, "foundationTypeIds":"2", "nonFederalDamOnFederalId":0, "designerNames":"CENAB", "otherNames":"East Sidney Lake", "ownerNames":"USACE - Baltimore District", "ownerTypeIds":"3", "primaryDamTypeId":9, "primaryOwnerTypeId":3, "primaryPurposeId":9, "purposeIds":"9;5", "dsacId":5, "femaRegion":"2", "lastEapExcerDate":"2023-01-24T12:00:00.000Z", "dataUpdated":"2025-01-30T12:00:00.000Z", "usaceDistrict":"Baltimore District", "noConsequencesId":0, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":1, "damStatusId":2, "huc06":"020501", "doi_region":null, "doi_region_name":"North Atlantic-Appalachian", "doi_region_number":1 }, "id":245020, "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/245020?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/245020?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/245020?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }