{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -95.42653, 39.11336 ] }, "properties":{ "provider":"NWK", "code":"PERY", "slug":"pery", "elevation":null, "horizontal_datum":"WGS84", "vertical_datum":"", "state":"KS", "kind":"PROJECT", "nearest_city":"Lawrence", "public_name":"Perry Dam & Reservoir", "location_code":5651030, "nsid":null, "aliases":{ "NIDID":"KS00009", "USGS Station Number":"06890898" }, "timeseries":[ { "tsid":"PERY.Flow-Out.Ave.1Day.1Day.Best-NWK", "label":"Outflow", "base_parameter":"Flow", "parameter":"Flow-Out", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T12:00:00Z", "latest_value":25.0, "delta24h":null, "sort_order":7, "results":null }, { "tsid":"PERY.Flow-In.Ave.1Day.1Day.Best-NWK", "label":"Inflow", "base_parameter":"Flow", "parameter":"Flow-In", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T12:00:00Z", "latest_value":1450.0, "delta24h":null, "sort_order":6, "results":null }, { "tsid":"PERY.Stor.Inst.1Hour.0.Best-NWK", "label":"Conservation Storage", "base_parameter":"Stor", "parameter":"Stor", "unit":"ac-ft", "unit_long_name":"Acre-feet", "latest_time":"2026-04-14T22:00:00Z", "latest_value":227564.07, "delta24h":null, "sort_order":13, "results":null }, { "tsid":"PERY.Elev.Inst.1Hour.0.Best-NWK", "label":"Elevation", "base_parameter":"Elev", "parameter":"Elev", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T22:00:00Z", "latest_value":894.02, "delta24h":null, "sort_order":1, "results":null }, { "tsid":"PERY.Stor.Inst.1Hour.0.Best-NWK", "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":227564.07, "delta24h":null, "sort_order":11, "results":null } ], "name":"Perry Dam & Reservoir", "hasResopsAverages":"true", "nidId":"KS00009", "nidid":"", "levels":[ { "slug":"elev.bottom of conservation", "label":"Bottom of Conservation", "parameter":"Elev", "base_parameter":"Elev", "tsid":"PERY.Elev.Inst.0.Bottom of Conservation", "latest_value":825, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.spillway crest", "label":"Spillway Crest", "parameter":"Elev", "base_parameter":"Elev", "tsid":"PERY.Elev.Inst.0.Spillway Crest", "latest_value":922, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.streambed", "label":"Streambed", "parameter":"Elev", "base_parameter":"Elev", "tsid":"PERY.Elev.Inst.0.Streambed", "latest_value":825, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of conservation", "label":"Top of Conservation", "parameter":"Elev", "base_parameter":"Elev", "tsid":"PERY.Elev.Inst.0.Top of Conservation", "latest_value":891.5, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of dam", "label":"Top of Dam", "parameter":"Elev", "base_parameter":"Elev", "tsid":"PERY.Elev.Inst.0.Top of Dam", "latest_value":946, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of flood", "label":"Top of Flood", "parameter":"Elev", "base_parameter":"Elev", "tsid":"PERY.Elev.Inst.0.Top of Flood", "latest_value":920.6, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of surcharge", "label":"Top of Surcharge", "parameter":"Elev", "base_parameter":"Elev", "tsid":"PERY.Elev.Inst.0.Top of Surcharge", "latest_value":941.2, "units":"ft", "units_long_name":"Feet" }, { "slug":"stor.bottom of conservation", "label":"Bottom of Conservation", "parameter":"Stor", "base_parameter":"Stor", "tsid":"PERY.Stor.Inst.0.Bottom of Conservation", "latest_value":0, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.spillway crest", "label":"Spillway Crest", "parameter":"Stor", "base_parameter":"Stor", "tsid":"PERY.Stor.Inst.0.Spillway Crest", "latest_value":752272, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of conservation", "label":"Top of Conservation", "parameter":"Stor", "base_parameter":"Stor", "tsid":"PERY.Stor.Inst.0.Top of Conservation", "latest_value":200004, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of flood", "label":"Top of Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"PERY.Stor.Inst.0.Top of Flood", "latest_value":715523, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of surcharge", "label":"Top of Surcharge", "parameter":"Stor", "base_parameter":"Stor", "tsid":"PERY.Stor.Inst.0.Top of Surcharge", "latest_value":1410800, "units":"ac-ft", "units_long_name":"Acre-feet" } ], "id":550345, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":121, "damLength":1740, "distance":3, "drainageArea":1117, "eapId":1, "dsacAssignedDate":"2018-07-11T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2025-07-03T12:00:00.000Z", "eapLastRevDate":"2020-09-30T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"KS00009", "oldFederalId":"KS00009", "hazardId":4, "hydraulicHeight":121, "inspectionAuthorityId":0, "inspectionDate":"2022-06-22T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":39.113478851, "lengthOfLocks":0, "secondaryLengthOfLocks":null, "longitude":-95.425358608, "maxDischarge":0, "maxStorage":770000, "nidHeight":121, "nidStorage":770000, "normalStorage":0, "numberOfLocks":0, "operationalStatusDate":"2018-07-11T12:00:00.000Z", "operationalStatusId":1, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The U.S. Army Corps of Engineers (USACE) constructed Perry Dam, completing in 1966. Perry Dam is located on the Delaware River, in the south-central part of Jefferson County, KS. Downstream of the dam are the communities of Perry, Lawrence, and Kansas City in Kansas and Kansas City, Missouri. The dam was authorized for flood control, water supply, recreation, fish & wildlife enhancement, and releases to support flows in the Kansas River for navigation. Perry Dam has reduced flood damage by more than an estimated $10.1 billion (2016 price level) from 1967 to 2016. The dam is 7,750 feet long composed of rolled earthfill. The top of the dam sits approximately 121 feet above the stream bed. Additionally, the Perry Lake project contains a 1,550 feet long saddle dike between the left abutment and spillway to complete the reservoir rim.", "riskCharSummary":"USACE completed a risk assessment for Perry Dam in July 2017 to determine the ability of USACE to meet the flood risk management goals of the dam. As a result, the risk due to dam breach is characterized as low. USACE is confident that the dam is solidly built, well maintained, and will continue to significantly reduce flood risks. However, the dam alone cannot eliminate all flooding. Extreme rainfall events that exceed the Perry Lake storage capacity can require the release of water through the outlet works or the uncontrolled spillway, even if the rivers and creeks are at or beyond capacity to prevent overtopping and failure of dam. This can result in flooding at downstream areas or can worsen already existing flooding downstream due to creeks and rivers being over capacity.", "riskManagementMeasures":"USACE will continue to work closely with state and local emergency managers, conduct emergency exercises and incorporate any new information into our collective emergency action plans. We will continue rigorous monitoring and surveillance of the dam and will do so more frequently when heavy rainfall causes high lake levels. Rainfall forecasts and lake levels are routinely monitored and if a high lake level is forecasted, we will promptly inform local and state emergency managers so that they can take protective actions, make flood warnings, and prepare for emergency responses. We will work with communities that are developing downstream of the dam to help them understand how they can better prepare for a potential flood.", "riverName":"DELAWARE RIVER", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":3, "spillwayWidth":0, "stateFedId":"KS00009", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":20, "submitDate":"2023-02-16T17:25:27.060Z", "surfaceArea":12200, "volume":60000, "widthOfLocks":0, "secondaryWidthOfLocks":null, "yearCompleted":1966, "congDist":"Congressional District 01, Kansas", "city":"PERRY", "county":"Jefferson", "aiannh":null, "websiteUrl":"https://www.nwk.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":"CENWK", "otherNames":"Perry Lake", "ownerNames":"USACE - Kansas City District", "ownerTypeIds":"3", "primaryDamTypeId":8, "primaryOwnerTypeId":3, "primaryPurposeId":9, "purposeIds":"9;3;5;8", "dsacId":4, "femaRegion":"7", "lastEapExcerDate":"2025-02-24T12:00:00.000Z", "dataUpdated":"2025-07-03T12:00:00.000Z", "usaceDistrict":"Kansas City District", "noConsequencesId":0, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":1, "damStatusId":2, "huc06":"102701", "doi_region":"MB", "doi_region_name":"Missouri Basin", "doi_region_number":5, "thirtyYearAverage":273.9122, "tenthPercentile":231.2327, "ninetiethPercentile":350.9694 }, "id":5651030, "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/5651030?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/5651030?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/5651030?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }