{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -86.78403, 32.32419 ] }, "properties":{ "provider":"SAM", "code":"RobertFHenry", "slug":"robertfhenry", "elevation":0.0, "horizontal_datum":"", "vertical_datum":"NGVD29", "state":"GA", "kind":"PROJECT", "nearest_city":"Prattville", "public_name":"Robert F Henry", "location_code":26100039, "nsid":null, "aliases":{ "NIDID":"AL01434", "CWMS Legacy Naming":"RobertFHenry", "CWMS Standard Naming":"RobertFHenry", "USGS Station Name":"02421350" }, "timeseries":[ { "tsid":"RobertFHenry-Tailwater.Elev.Inst.15Minutes.0.Raw-USGS", "label":"Elevation Tailwater", "base_parameter":"Elev", "parameter":"Elev", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T22:00:00Z", "latest_value":80.69, "delta24h":null, "sort_order":3, "results":null }, { "tsid":"RobertFHenry.Elev.Inst.15Minutes.0.Raw-USGS", "label":"Elevation", "base_parameter":"Elev", "parameter":"Elev", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T22:00:00Z", "latest_value":125.11, "delta24h":null, "sort_order":1, "results":null } ], "name":"Robert F Henry", "hasResopsAverages":"false", "nidId":"AL01434", "nidid":"", "levels":[ { "slug":"elev.bottom of normal", "label":"Bottom of Normal", "parameter":"Elev", "base_parameter":"Elev", "tsid":"RobertFHenry.Elev.Inst.0.Bottom of Normal", "latest_value":122, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.streambed", "label":"Streambed", "parameter":"Elev", "base_parameter":"Elev", "tsid":"RobertFHenry.Elev.Inst.0.Streambed", "latest_value":64, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of dam", "label":"Top of Dam", "parameter":"Elev", "base_parameter":"Elev", "tsid":"RobertFHenry.Elev.Inst.0.Top of Dam", "latest_value":140, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of normal", "label":"Top of Normal", "parameter":"Elev", "base_parameter":"Elev", "tsid":"RobertFHenry.Elev.Inst.0.Top of Normal", "latest_value":126, "units":"ft", "units_long_name":"Feet" }, { "slug":"stor.bottom of normal", "label":"Bottom of Normal", "parameter":"Stor", "base_parameter":"Stor", "tsid":"RobertFHenry.Stor.Inst.0.Bottom of Normal", "latest_value":200000, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.streambed", "label":"Streambed", "parameter":"Stor", "base_parameter":"Stor", "tsid":"RobertFHenry.Stor.Inst.0.Streambed", "latest_value":0, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of dam", "label":"Top of Dam", "parameter":"Stor", "base_parameter":"Stor", "tsid":"RobertFHenry.Stor.Inst.0.Top of Dam", "latest_value":580000, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of normal", "label":"Top of Normal", "parameter":"Stor", "base_parameter":"Stor", "tsid":"RobertFHenry.Stor.Inst.0.Top of Normal", "latest_value":247200, "units":"ac-ft", "units_long_name":"Acre-feet" } ], "id":549783, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":null, "damLength":1150, "distance":3, "drainageArea":16233, "eapId":1, "dsacAssignedDate":"2024-04-23T12:00:00.000Z", "eapMeetsGuidelinesId":0, "emergencyContactsUpdated":"2024-08-07T12:00:00.000Z", "eapLastRevDate":"2019-09-07T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"AL01434", "oldFederalId":"AL01434", "hazardId":3, "hydraulicHeight":70, "inspectionAuthorityId":0, "inspectionDate":"2022-03-22T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":32.324236404, "lengthOfLocks":600, "secondaryLengthOfLocks":null, "longitude":-86.784002345, "maxDischarge":653000, "maxStorage":234200, "nidHeight":110, "nidStorage":234200, "normalStorage":234200, "numberOfLocks":1, "operationalStatusDate":"2009-05-12T12:00:00.000Z", "operationalStatusId":1, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The U.S. Army Corps of Engineers (USACE) operates and maintains more than 700 dams across the United States. A dam is an earthen embankment and/or solid concrete structure that is built across a river, stream, or other waterway to temporarily hold back and store water that would otherwise flow downstream. More detail related to this specific dam will be added at a future time.", "riskCharSummary":"UBreach risk for this dam has been asssessed to be very low. Flood inundation maps and breach consequence estimates were not produced for this dam since there is no estimated potential loss of life should it fail or be mis-operated. This dam has limited storage during normal and low water operations to ensure adequate flows to support navigation. This dam is not authorized, designed, or operated for flood damage reduction. In the unlikely event of a dam failure with low or normal water flows in the river, widespread flooding would not occur. During high flow events, the dam is operated to pass water as quickly as it arrives. During a large flood, the river channel and floodplain control river elevations so if the dam failed, the failure would produce negligible additional effects on the extent of flooding.", "riskManagementMeasures":"USACE manages dam-related flood risks by assessing the condition of the dam by monitoring and routine inspection. Regular maintenance and repairs are performed as needed to keep the dam functioning properly. USACE prioritizes maintenance and repairs that will most impact the risks, and engages upstream and downstream emergency managers and members of the public to raise awareness of the dam and support actions to prepare and be ready to respond in the case of a dam-related incident. USACE periodically updates the emergency action plan for this dam and periodically convenes with state and local emergency managers to share what is known about the dam and to support the development of state and local preparedness and response plans.", "riverName":"ALABAMA RIVER", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":1, "spillwayWidth":550, "stateFedId":"AL01434", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":110, "submitDate":"2023-02-16T17:25:40.162Z", "surfaceArea":12300, "volume":640000, "widthOfLocks":84, "secondaryWidthOfLocks":null, "yearCompleted":1974, "congDist":"Congressional District 07, Alabama", "city":"BENTON", "county":"Lowndes", "aiannh":null, "websiteUrl":"https://www.sam.usace.army.mil/Missions/Civil-Works/Recreation/Alabama-River-Lakes/", "coreTypeIds":null, "damTypeIds":"9", "fedConstructionIds":"1", "fedDesignIds":"1", "fedFundingIds":"1", "fedInspectionIds":"1", "fedOperationIds":"1", "fedOtherIds":"1", "fedOwnerIds":"1", "fedRegulatoryIds":"1", "formerNames":null, "foundationTypeIds":"1", "nonFederalDamOnFederalId":0, "designerNames":"CESAM", "otherNames":"Jones Bluff;R.E. 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