{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -97.37167, 31.86528 ] }, "properties":{ "provider":"SWF", "code":"WTYT2", "slug":"wtyt2", "elevation":0.0, "horizontal_datum":"", "vertical_datum":"NGVD29", "state":"TX", "kind":"PROJECT", "nearest_city":"Laguna Park, TX", "public_name":"Whitney Lake", "location_code":195048, "nsid":null, "aliases":{ "NID Dam Name":"WHITNEY LAKE", "NIDID":"TX00017" }, "timeseries":[ { "tsid":"WTYT2.Flow-In.Ave.~1Day.1Day.Computed-SWF-REGI", "label":"Inflow", "base_parameter":"Flow", "parameter":"Flow-In", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T05:00:00Z", "latest_value":956.98, "delta24h":null, "sort_order":6, "results":null }, { "tsid":"WTYT2.Elev.Inst.1Hour.0.Decodes-Rev", "label":"Elevation", "base_parameter":"Elev", "parameter":"Elev", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T22:00:00Z", "latest_value":531.82, "delta24h":null, "sort_order":1, "results":null }, { "tsid":"WTYT2.Stor.Inst.1Hour.0.Decodes-Rev", "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":589942.87, "delta24h":null, "sort_order":13, "results":null }, { "tsid":"WTYT2.Stor.Inst.1Hour.0.Decodes-Rev", "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":589942.87, "delta24h":null, "sort_order":11, "results":null }, { "tsid":"WTYT2.Flow-Out.Inst.1Hour.0.Rev-SWF-REGI", "label":"Outflow", "base_parameter":"Flow", "parameter":"Flow-Out", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T21:00:00Z", "latest_value":50.0, "delta24h":null, "sort_order":7, "results":null }, { "tsid":"WTYT2.Precip-INC.Total.~1Day.1Day.Best-SWF", "label":"Precipitation", "base_parameter":"Precip", "parameter":"Precip-INC", "unit":"in", "unit_long_name":"Inches", "latest_time":"2026-04-14T13:00:00Z", "latest_value":0.0, "delta24h":null, "sort_order":16, "results":null } ], "name":"Whitney Lake", "hasResopsAverages":"false", "nidId":"TX00017", "nidid":"", "levels":[ { "slug":"elev.bottom of inactive", "label":"Bottom of Inactive", "parameter":"Elev", "base_parameter":"Elev", "tsid":"WTYT2.Elev.Inst.0.Bottom of Inactive", "latest_value":432, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.bottom of power", "label":"Bottom of Power", "parameter":"Elev", "base_parameter":"Elev", "tsid":"WTYT2.Elev.Inst.0.Bottom of Power", "latest_value":520, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.design capacity", "label":"Design Capacity", "parameter":"Elev", "base_parameter":"Elev", "tsid":"WTYT2.Elev.Inst.0.Design Capacity", "latest_value":573, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.spillway crest", "label":"Spillway Crest", "parameter":"Elev", "base_parameter":"Elev", "tsid":"WTYT2.Elev.Inst.0.Spillway Crest", "latest_value":533, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.streambed", "label":"Streambed", "parameter":"Elev", "base_parameter":"Elev", "tsid":"WTYT2.Elev.Inst.0.Streambed", "latest_value":425, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of conservation", "label":"Top of Conservation", "parameter":"Elev", "base_parameter":"Elev", "tsid":"WTYT2.Elev.Inst.0.Top of Conservation", "latest_value":533, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of dam", "label":"Top of Dam", "parameter":"Elev", "base_parameter":"Elev", "tsid":"WTYT2.Elev.Inst.0.Top of Dam", "latest_value":580, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of flood", "label":"Top of Flood", "parameter":"Elev", "base_parameter":"Elev", "tsid":"WTYT2.Elev.Inst.0.Top of Flood", "latest_value":571, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of inactive", "label":"Top of Inactive", "parameter":"Elev", "base_parameter":"Elev", "tsid":"WTYT2.Elev.Inst.0.Top of Inactive", "latest_value":448.83, "units":"ft", "units_long_name":"Feet" }, { "slug":"stor.bottom of inactive", "label":"Bottom of Inactive", "parameter":"Stor", "base_parameter":"Stor", "tsid":"WTYT2.Stor.Inst.0.Bottom of Inactive", "latest_value":0, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.bottom of power", "label":"Bottom of Power", "parameter":"Stor", "base_parameter":"Stor", "tsid":"WTYT2.Stor.Inst.0.Bottom of Power", "latest_value":356976.1, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.design capacity", "label":"Design Capacity", "parameter":"Stor", "base_parameter":"Stor", "tsid":"WTYT2.Stor.Inst.0.Design Capacity", "latest_value":2090560, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.spillway crest", "label":"Spillway Crest", "parameter":"Stor", "base_parameter":"Stor", "tsid":"WTYT2.Stor.Inst.0.Spillway Crest", "latest_value":617194, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.streambed", "label":"Streambed", "parameter":"Stor", "base_parameter":"Stor", "tsid":"WTYT2.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":"WTYT2.Stor.Inst.0.Top of Conservation", "latest_value":617194, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of flood", "label":"Top of Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"WTYT2.Stor.Inst.0.Top of Flood", "latest_value":1989664, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of inactive", "label":"Top of Inactive", "parameter":"Stor", "base_parameter":"Stor", "tsid":"WTYT2.Stor.Inst.0.Top of Inactive", "latest_value":1257, "units":"ac-ft", "units_long_name":"Acre-feet" } ], "id":550051, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":159, "damLength":7538, "distance":null, "drainageArea":17656, "eapId":1, "dsacAssignedDate":"2016-12-27T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2024-09-10T12:00:00.000Z", "eapLastRevDate":"2021-03-09T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"TX00017", "oldFederalId":"TX00017", "hazardId":4, "hydraulicHeight":148, "inspectionAuthorityId":0, "inspectionDate":"2025-01-21T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":31.8676478080001, "lengthOfLocks":0, "secondaryLengthOfLocks":null, "longitude":-97.370498229, "maxDischarge":632000, "maxStorage":2100400, "nidHeight":166, "nidStorage":2100400, "normalStorage":627100, "numberOfLocks":0, "operationalStatusDate":"2016-12-27T12:00:00.000Z", "operationalStatusId":1, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The U.S. Army Corps of Engineers (USACE) completed construction of Whitney Dam in April 1951 in accordance with the Flood Control Act, approved on 18 August 1941 (Public Law 228, Seventy-Seventh Congress, first session), and completion of the project was authorized by the Flood Control Act approved 22 December 1944 (Public Law 534, Seventy-eighth Congress, second session). It is located approximately 5.5 miles southwest of the City of Whitney in Hill and Bosque Counties, Texas. The dam reduces the risk of downstream flooding along the Brazos River by holding back waters during heavy rain events. The dam is an earthen dam, approximately 3.35 miles long, with both a gated concrete spillway and a hydropower plant on the southern end. The gated spillway is controlled by seventeen tainter gates that hold water to 9 feet below the top of the dam to regulate water storage and releases. The gated spillway also contains sixteen low-flow gated sluiceways, or openings through the dam, for releasing water in a regulated manner during and after flood events. The hydropower plant can produce 21,500 kilowatts of energy through two 16-foot diameter pipes. Additional benefits of the dam are recreation and fish and wildlife conservation.", "riskCharSummary":"Although Whitney Dam reduces the risk of flooding to downstream communities, the dam does not eliminate the risk of flooding. Whitney Dam is designed to reduce the peak flooding levels downstream without risking the structural integrity of the dam. The U.S. Army Corps of Engineers (USACE) completed a risk assessment in July 2016 and classified the risks associated with the project as low. This classification is based on an extremely unlikely flood event which could cause flooding of the gated spillway operating gallery due to failure of the sluice gate equalization lines, rendering the sluice gates inoperable. This extremely unlikely flood event could also cause water to flow through the dam's foundation and eventually weaken the dam. In the remote event of a dam breach, the largest impacts would be to the City of Waco, TX, located approximately 35 river miles downstream of the dam. In any of these unlikely scenarios, downstream flooding in Waco, TX would occur within 2.5 hours of breach and could be as deep as a three-story structure, destroying buildings and critical infrastructure such as fire stations, schools, and universities. In addition, some evacuation routes would be under water, increasing evacuation distances. Although the large downstream communities have well-practiced emergency action plans, and local emergency managers are aware of the unlikely potential for dam failure, breach of the dam would result in significant loss of life and severe economic damages.", "riskManagementMeasures":"In order to lower the risks associated with the dam, inspections and monitoring are performed regularly to ensure the health and safety of the dam. Surveillance and inspections would be increased as the lake elevation rises. Normal operation and maintenance is performed regularly to ensure the dam is functioning as designed. Repairs to the embankment on the upstream side of the dam were completed in 2019, and a new layer of rock was added on the upstream slope to protect the dam from wave action during periods of high water. An Emergency Action Plan is updated and exercised annually to improve emergency response and coordination between USACE elements and downstream federal, state, county, city agencies, and stakeholders. USACE also communicates risks associated with Whitney Dam annually with stakeholders and Emergency Managers.", "riverName":"BRAZOS RIVER", "separateStructuresCount":1, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":1, "spillwayWidth":680, "stateFedId":"TX00017", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":166, "submitDate":"2023-02-24T00:00:00.000Z", "surfaceArea":23560, "volume":2253300, "widthOfLocks":0, "secondaryWidthOfLocks":null, "yearCompleted":1951, "congDist":"Congressional District 06, Texas", "city":"Whitney", "county":"Hill", "aiannh":null, "websiteUrl":"https://www.swf-wc.usace.army.mil/whitney/", "coreTypeIds":"3", "damTypeIds":"8", "fedConstructionIds":"1", "fedDesignIds":"1", "fedFundingIds":"1", "fedInspectionIds":"1", "fedOperationIds":"1", "fedOtherIds":"1", "fedOwnerIds":"1", "fedRegulatoryIds":"1;13", "formerNames":null, "foundationTypeIds":"1;3", "nonFederalDamOnFederalId":0, "designerNames":"CESWF", "otherNames":null, "ownerNames":"USACE - Fort Worth District", "ownerTypeIds":"3", "primaryDamTypeId":8, "primaryOwnerTypeId":3, "primaryPurposeId":9, "purposeIds":"9;4;5;6;8", "dsacId":4, "femaRegion":"6", "lastEapExcerDate":"2024-12-05T12:00:00.000Z", "dataUpdated":"2025-06-03T12:00:00.000Z", "usaceDistrict":"Fort Worth District", "noConsequencesId":0, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":1, "damStatusId":2, "huc06":"120602", "doi_region":"ART", "doi_region_name":"Arkansas-Rio Grande-Texas Gulf", "doi_region_number":6 }, "id":195048, "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/195048?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/195048?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/195048?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }