{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -84.07333, 34.16 ] }, "properties":{ "provider":"SAM", "code":"Buford", "slug":"buford", "elevation":1106.0, "horizontal_datum":"NAD27", "vertical_datum":"NGVD29", "state":"GA", "kind":"PROJECT", "nearest_city":"Alpharetta", "public_name":"Buford Dam and Lake Lanier", "location_code":32350039, "nsid":null, "aliases":{ "SHEF Location ID":"CMMG2", "CWMS Legacy Naming":"Buford", "CWMS Standard Naming":"Buford", "NIDID":"GA00824", "USGS Station Number":"02334400" }, "timeseries":[ { "tsid":"Buford.Flow-Out.Inst.15Minutes.0.Raw-UR", "label":"Outflow", "base_parameter":"Flow", "parameter":"Flow-Out", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T22:15:00Z", "latest_value":644.0, "delta24h":null, "sort_order":7, "results":null }, { "tsid":"Buford.Temp-Air.Inst.15Minutes.0.Raw-USGS", "label":"Air Temperature", "base_parameter":"Temp", "parameter":"Temp-Air", "unit":"F", "unit_long_name":"Fahrenheit", "latest_time":"2026-04-14T22:15:00Z", "latest_value":84.2, "delta24h":null, "sort_order":22, "results":null }, { "tsid":"Buford.Stor.Inst.15Minutes.0.Raw-USGS", "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":1769000.0, "delta24h":null, "sort_order":13, "results":null }, { "tsid":"Buford.Elev.Inst.15Minutes.0.Raw-USGS", "label":"Elevation", "base_parameter":"Elev", "parameter":"Elev", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T22:15:00Z", "latest_value":1066.0, "delta24h":null, "sort_order":1, "results":null }, { "tsid":"Buford-Tailwater.Elev.Inst.15Minutes.0.Raw-USGS", "label":"Elevation Tailwater", "base_parameter":"Elev", "parameter":"Elev", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T22:15:00Z", "latest_value":912.18, "delta24h":null, "sort_order":3, "results":null }, { "tsid":"Buford.Flow-In.Ave.1Hour.3Hours.Raw-CCP", "label":"Inflow", "base_parameter":"Flow", "parameter":"Flow-In", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T21:00:00Z", "latest_value":-812.03, "delta24h":null, "sort_order":6, "results":null }, { "tsid":"Buford.Stor.Inst.15Minutes.0.Raw-USGS", "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":1769000.0, "delta24h":null, "sort_order":11, "results":null }, { "tsid":"Buford.Precip-Inc.Total.15Minutes.15Minutes.Raw-USGS", "label":"Precipitation", "base_parameter":"Precip", "parameter":"Precip-Inc", "unit":"in", "unit_long_name":"Inches", "latest_time":"2026-04-14T22:15:00Z", "latest_value":0.0, "delta24h":null, "sort_order":16, "results":null } ], "name":"Buford Dam and Lake Lanier", "hasResopsAverages":"true", "nidId":"GA00824", "nidid":"", "levels":[ { "slug":"elev.bottom of operating", "label":"Bottom of Operating", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Buford.Elev.Inst.0.Bottom of Operating", "latest_value":1035, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.streambed", "label":"Streambed", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Buford.Elev.Inst.0.Streambed", "latest_value":919, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of conservation", "label":"Top of Conservation", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Buford.Elev.Inst.0.Top of Conservation", "latest_value":1070, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of dam", "label":"Top of Dam", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Buford.Elev.Inst.0.Top of Dam", "latest_value":1106, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of flood", "label":"Top of Flood", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Buford.Elev.Inst.0.Top of Flood", "latest_value":1085, "units":"ft", "units_long_name":"Feet" }, { "slug":"stor.bottom of operating", "label":"Bottom of Operating", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Buford.Stor.Inst.0.Bottom of Operating", "latest_value":867600, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.streambed", "label":"Streambed", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Buford.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":"Buford.Stor.Inst.0.Top of Conservation", "latest_value":1917000, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of dam", "label":"Top of Dam", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Buford.Stor.Inst.0.Top of Dam", "latest_value":3642000, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of flood", "label":"Top of Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Buford.Stor.Inst.0.Top of Flood", "latest_value":2554000, "units":"ac-ft", "units_long_name":"Acre-feet" } ], "id":549704, "associatedStructuresCount":3, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":null, "damLength":2470, "distance":3, "drainageArea":1040, "eapId":1, "dsacAssignedDate":"2020-11-12T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2024-08-07T12:00:00.000Z", "eapLastRevDate":"2020-09-12T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"GA00824", "oldFederalId":"GA00824", "hazardId":4, "hydraulicHeight":193, "inspectionAuthorityId":0, "inspectionDate":"2024-04-23T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":34.16032625, "lengthOfLocks":0, "secondaryLengthOfLocks":null, "longitude":-84.073875278, "maxDischarge":13900, "maxStorage":2554000, "nidHeight":231, "nidStorage":2554000, "normalStorage":1917000, "numberOfLocks":0, "operationalStatusDate":"2020-11-12T12:00:00.000Z", "operationalStatusId":2, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The Buford Dam was authorized by Congress in the 1950 Flood Control Act to generate hydropower and reduce flooding in downstream communities. Buford Dam is located on the Chattahoochee River approximately 45 miles Northeast of Atlanta. It was designed and constructed in 1956 by the U.S. Army Corps of Engineers (USACE) and resulted in the formation of Lake Lanier, a 59 square mile reservoir, that supplies water to Georgia, Alabama, and Florida. The dam also provides navigation, has a thriving fish and wildlife ecosystem, and is the most-visited Corps of Engineers lake site in the nation.\n\nThe Buford Dam is constructed of compacted soil. Smaller dams, or saddle dikes, are located in three areas around the lake to help contain the lake. Water is released into the river beneath the dam through the hydropower units or through a small tunnel in the powerhouse called a sluice. An overflow spillway is cut into the shoreline to pass water during major flood events. However, to date there has not been a flood event that has required the use of this spillway.\n\nThe earthen dam is over 1,500 feet long, almost 200 feet high, and 40 feet wide at the top of the dam. The overflow spillway is located to the left of the embankment and is 100 feet wide with a crest elevation of 1,085 feet. \n\nFlooding downstream has been greatly reduced since the dam was built. On average the dam has reduced the damage caused by flooding by about $20 million each year, generated nearly $24 million in hydropower each year, and almost $70 million in annual recreation benefits to the region.", "riskCharSummary":"USACE completed a risk assessment on July 30, 2020 and has classified the risks associated with the Buford Dam as Moderate. The dam was found to be well-designed, well-constructed, and well-maintained and is expected to be reliable during major floods. The dam is located in the Atlanta metropolitan area and people in this area could see life threatening flooding during large floods which require use of the overflow spillway, which is a situation that has never happened before. Additionally, there are also two very unlikely flood scenarios where (1) the area experiences a flood so large that it overwhelms the dam causing the dam to fail as water spills over the top of it, or (2) water seeping through a saddle dike erodes its embankment to the point of failure. If either of these scenarios were to occur flood waters would be extremely swift and deep and cause catastrophic flooding downstream, widespread economic impacts, and significant loss of life. In the remote event of a dam failure the largest impacts would be in communities downstream of the dam, especially in the areas of Sugar Hill, Duluth, and Peachtree Corners. Key infrastructure along the river would be damaged or destroyed and historic flooding on the river could occur all the way to the Gulf of America, impacting the states of Georgia, Alabama, and Florida.", "riskManagementMeasures":"USACE is continuously working to manage the risk to the public. This includes working with local emergency managers, regularly updating the Emergency Action Plan, and conducting emergency exercises with state and local response teams. USACE regularly inspects and monitors instruments to check the health of the dam. The frequency of these checks increases when the lake level rises. This ensures that the structure is performing as designed and could help detect any areas of potential concern. Regular maintenance and repairs are performed as needed to keep the dam functioning properly.\n\nFollow the Mobile District on Facebook at www.facebook.com/USACEMOBILE/\nLake Lanier on Facebook https://facebook.com/LakeSidneyLanierUSACE/\n\nConsider purchasing flood insurance to protect your property\nVisit: www.fema.gov/national-flood-insurance-program\n\nCreate a family emergency plan and determine your evacuation route with the goal of getting to higher ground. \nVisit: www.ready.gov\n\nConnect with your local representatives and officials to sign up for personalized alerts.\nGeorgia EMA Alerts and Warnings\thttps://gema.georgia.gov/plan-prepare/alerts-and-warnings\nForsyth County Emergency Management Agency https://www.forsythco.com/Departments-Offices/Emergency-Management-Agency\nGwinnett County Emergency Management Agency https://www.gwinnettcounty.com/web/gwinnett/departments/police/emergencymanagement", "riverName":"CHATTAHOOCHEE RIVER", "separateStructuresCount":3, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":3, "spillwayWidth":100, "stateFedId":"GA00824", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":231, "submitDate":"2023-02-16T17:25:38.452Z", "surfaceArea":47182, "volume":3751000, "widthOfLocks":0, "secondaryWidthOfLocks":null, "yearCompleted":1958, "congDist":"Congressional District 06, Georgia", "city":"BUFORD", "county":"Gwinnett", "aiannh":null, "websiteUrl":"https://www.sam.usace.army.mil/missions/civil-works/recreation/lake-sidney-lanier/", "coreTypeIds":"3", "damTypeIds":"8", "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":"Lake Sidney Lanier", "ownerNames":"USACE - Mobile District", "ownerTypeIds":"3", "primaryDamTypeId":8, "primaryOwnerTypeId":3, "primaryPurposeId":9, "purposeIds":"9;5;6", "dsacId":3, "femaRegion":"4", "lastEapExcerDate":"2024-08-07T12:00:00.000Z", "dataUpdated":"2025-02-13T12:00:00.000Z", "usaceDistrict":"Mobile District", "noConsequencesId":0, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":1, "damStatusId":2, "huc06":"031300", "doi_region":null, "doi_region_name":"South Atlantic Gulf", "doi_region_number":2, "thirtyYearAverage":2815.5232, "tenthPercentile":2374.9196, "ninetiethPercentile":3139.768 }, "id":32350039, "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/32350039?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/32350039?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/32350039?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }