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"units_long_name":"Acre-feet" } ], "id":550038, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":97, "damLength":10600, "distance":null, "drainageArea":850, "eapId":1, "dsacAssignedDate":"2018-07-11T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2024-09-10T12:00:00.000Z", "eapLastRevDate":"2020-09-18T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"TX00020", "oldFederalId":"TX00020", "hazardId":4, "hydraulicHeight":90, "inspectionAuthorityId":0, "inspectionDate":"2022-08-01T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":32.7499904000001, "lengthOfLocks":0, "secondaryLengthOfLocks":null, "longitude":-94.5043974289999, "maxDischarge":79664, "maxStorage":1998740, "nidHeight":97, "nidStorage":1998740, "normalStorage":254900, "numberOfLocks":0, "operationalStatusDate":"2018-07-11T12:00:00.000Z", "operationalStatusId":2, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"USACE completed construction of Lake O\u2019 the Pines and Ferrells Bridge Dam in 1958 with the project purpose to provide flood risk management, water supply, environmental regulation, and recreation. Lake O\u2019 the Pines and Ferrells Bridge Dam impounds Lake O\u2019 the Pines and Ferrells Bridge and is located on the Cypress Creek about 9 miles west of Jefferson, Texas. The project is one of 17 USACE flood control projects in a comprehensive plan for flood control on the Red River below Denison Dam, Texas. Since it went into operation, the dam has reduced damage caused by downstream flooding by more than an estimated $119,832,000 million (adjusted to 2020 dollars). Lake O\u2019 the Pines and Ferrells Bridge Dam works in conjunction with Caddo Lake (National Inventory of Dams LA00181) to regulate flows along the Cypress Creek, which feeds into the Red River. During large storm events, the dam temporarily stores flood waters to manage flooding downstream in accordance with the approved water control plan. After the storm passes and the Red River Basin recedes, water can be safety released downstream. Water storage and releases are managed by two water control gates operated by onsite USACE personnel. The project is primarily an earthen embankment dam and includes a 200-foot wide concrete spillway, which holds water to 27.5-feet below the top of the dam to regulate the reservoir when the pool elevation exceeds capacity.", "riskCharSummary":"Although Lake O\u2019 the Pines and Ferrells Bridge Dam reduces the risk of flooding to downstream communities, the dam does not eliminate the risk of flooding. The most likely scenario that could result in downstream flooding are high volume releases from Lake O\u2019 the Pines and Ferrells Bridge Dam through the un-gated spillway during high water events. These surcharge operational releases occur when the reservoir's flood storage capacity is exceeded and excess water flows through the spillway. Lake O\u2019 the Pines and Ferrells Bridge Dam is designed to reduce the peak flooding levels downstream without risking the structural integrity of the dam. The United States Army Corps of Engineers (USACE) completed a risk assessment in June 2017 and classified the risk associated with Lake O\u2019 the Pines and Ferrells Bridge Dam as moderate. This risk classification is primarily driven by the very low probability for dam failure and the number of large populations at risk below Lake O\u2019 the Pines and Ferrells Bridge Dam. The potential of breach for Lake O\u2019 the Pines and Ferrells Bridge Dam was assessed to be related to two primary risks associated with earthen embankment dams: 1) During an extreme flood event, the foundation upon which the dam was built may experience excessive pressures beyond its design which could then lead to erosion of the embankment foundation and eventual breach of the dam, and 2) During an extreme flood event, undermining of the foundation below the concrete spillway could lead to slab displacement and uncontrolled erosion of the supporting embankment leading to breach of the am. In the remote event of a dam breach the largest impacts would be to the cities of Shreveport and Alexandria, Louisiana. Potentially impacted infrastructure includes road networks, electrical substations, communication facilities, police and fire stations, hospitals, airports, and schools. Levees in the downstream populated areas may experience overtopping and would not contain the floodwaters. Although the downstream communities have well-practiced emergency action plans; and local emergency managers are aware of the unlikely potential for dam failure; local emergency managers meet regularly with USACE to discuss emergency response to flood events, breach of the dam from either risk category could result in catastrophic flooding downstream and include widespread economic impacts and significant loss of life.", "riskManagementMeasures":"The United States Army Corps of Engineers (USACE) is continually taking proactive steps to reduce risk and ensure public safety. This includes conducting emergency exercises with local and state emergency responders to enhance evacuation planning; annual updates to the Emergency Action Plan to improve emergency response actions; and development of a detailed communications plan for the dam. USACE will continue to identify and implement interim risk reduction measures such as stockpiling materials to mitigate the potential for erosion of the embankment or foundation. Additionally, the dam is well maintained and USACE conducts detailed inspections of the dam during both normal lake levels and increased surveillance during flood events to ensure the integrity of the structure. Lastly, the dam has a robust instrumentation and monitoring system to allow USACE staff to evaluate the dam for changing conditions and there are pre-positioned materials at the project site to perform immediate flood fighting activities as necessary.", "riverName":"CYPRESS CREEK", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":3, "spillwayWidth":200, "stateFedId":"TX00020", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":97, "submitDate":"2023-10-13T00:00:00.000Z", "surfaceArea":18700, "volume":4000000, "widthOfLocks":0, "secondaryWidthOfLocks":null, "yearCompleted":1958, "congDist":"Congressional District 01, Texas", "city":"JEFFERSON", "county":"Marion", "aiannh":null, "websiteUrl":"https://www.usace.army.mil/Missions/Civil-Works/Dam-Safety-Program/Article/2870967/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":"CESWF", "otherNames":"Lake O The Pines", "ownerNames":"USACE - Fort Worth District", "ownerTypeIds":"3", "primaryDamTypeId":8, "primaryOwnerTypeId":3, "primaryPurposeId":9, "purposeIds":"9;4;5;8", "dsacId":3, "femaRegion":"6", "lastEapExcerDate":"2024-10-08T12:00:00.000Z", "dataUpdated":"2025-06-09T12:00:00.000Z", "usaceDistrict":"Fort Worth District", "noConsequencesId":0, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":1, "damStatusId":2, "huc06":"111403", "doi_region":"ART", "doi_region_name":"Arkansas-Rio Grande-Texas Gulf", "doi_region_number":6 }, "id":231048, "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/231048?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/231048?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/231048?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }