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        "elevation":900.0,
        "horizontal_datum":"NAD83",
        "vertical_datum":"NGVD29",
        "state":"MN",
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        "public_name":"Chippewa Diversion Dam",
        "location_code":17276016,
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        "aliases":{
            "NIDID":"MN00578",
            "CWMS Legacy Naming":"ChippewaDiv_Dam",
            "CWMS Standard Naming":"ChippewaDiv_Dam",
            "USGS Station Number":"05304995",
            "NWS Handbook 5 ID":"WTSM5"
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                "unit_long_name":"Feet",
                "latest_time":"2026-04-14T22:00:00Z",
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                "latest_time":"2026-04-14T06:00:00Z",
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                "base_parameter":"Elev",
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                "latest_value":950,
                "units":"ft",
                "units_long_name":"Feet"
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                "label":"Top of Dam",
                "parameter":"Elev",
                "base_parameter":"Elev",
                "tsid":"ChippewaDiv_Dam.Elev.Inst.0.Top of Dam",
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                "units":"ft",
                "units_long_name":"Feet"
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        "id":550387,
        "associatedStructuresCount":1,
        "conditionAssessDate":null,
        "conditionAssessDetail":null,
        "conditionAssessId":6,
        "damHeight":5,
        "damLength":12000,
        "distance":11,
        "drainageArea":0,
        "eapId":1,
        "dsacAssignedDate":"2010-03-30T12:00:00.000Z",
        "eapMeetsGuidelinesId":1,
        "emergencyContactsUpdated":"2024-11-14T12:00:00.000Z",
        "eapLastRevDate":"1995-10-01T12:00:00.000Z",
        "enforcementAuthorityId":0,
        "federalId":"MN00578",
        "oldFederalId":"MN00578",
        "hazardId":2,
        "hydraulicHeight":12,
        "inspectionAuthorityId":0,
        "inspectionDate":"2017-07-19T12:00:00.000Z",
        "inspectionFrequency":5,
        "jurisdictionAuthorityId":0,
        "latitude":45.01667,
        "lengthOfLocks":0,
        "secondaryLengthOfLocks":null,
        "longitude":-95.833328,
        "maxDischarge":6000,
        "maxStorage":81.3,
        "nidHeight":20,
        "nidStorage":81.3,
        "normalStorage":0,
        "numberOfLocks":0,
        "operationalStatusDate":"2010-03-30T12:00:00.000Z",
        "operationalStatusId":2,
        "originalDesignerName":null,
        "otherStructureId":null,
        "permittingAuthorityId":0,
        "politicalPartyId":null,
        "privateDamId":null,
        "projectDescription":"The Chippewa and Minnesota Rivers diverge near Watson, Minnesota and recombine about 8 miles downstream in Montevideo, Minnesota.  The Chippewa Diversion dam regulates the flow split between the Chippewa and Minnesota Rivers, and is a component of the Lac qui Parle (LQP) reservoir project.  The LQP project is located on the Minnesota River in western Minnesota near the South Dakota state line.  The LQP project traces its impetus to a flood in 1919, although the eventual congressional authorization includes multiple purposes related to wildlife conservation.  The Chippewa dam was initially constructed by the State of Minnesota\u2019s Public Works Administration beginning in 1934 and subsequently accepted as a federal Works Progress Administration project in 1936.    Upon transfer to the Army Corps of Engineers, several modifications were recommended in 1947 and completed in 1951 (including adding the Tainter gate to the Chippewa Dam).   Chippewa County Highway 13 bridge crosses Chippewa dam, and a 4-ft x 4-ft box conduit passing under the highway for low-flows.  Chippewa Dam and the adjacent Watson Sag weir on Chippewa County Road 9 operate jointly to regulate the flow split, so are listed jointly as one dam (NID MN00578). There is about 3-1/2 miles of embankments associated with the two structures.",
        "riskCharSummary":"USACE currently has Chippewa & Watson listed as moderate-risk dams (DSAC-3) among its more than 700 dams.  The risk ranking is based on a screening-level assessment in 2009 that cited concerns for overtopping (especially near the abutments and wingwalls of the two structures where velocities are higher) and intermittent scour downstream of Chippewa.  The potential consequences of a breach in Chippewa during large floods only impact downstream water surface profiles by a few inches, so consequences related to the dam performance are minimal.  Therefore, Chippewa and Watson are listed as low hazard dams.",
        "riskManagementMeasures":"USACE is continuously taking steps to reduce the risk to the public.  USACE manages dam-related flood risks by continually monitoring the condition and health of the dam and prioritizing activities that will most impact these risks.   Regular maintenance and repairs are performed as needed to keep the dam functioning properly.",
        "riverName":"CHANNEL BUILT OFF CHIPPEWA RIV",
        "separateStructuresCount":1,
        "sourceAgency":"US Army Corps of Engineers",
        "spillwayTypeId":3,
        "spillwayWidth":162,
        "stateFedId":"MN00578",
        "stateRegulatoryAgency":null,
        "stateRegulatedId":0,
        "structuralHeight":20,
        "submitDate":"2023-02-16T17:25:16.643Z",
        "surfaceArea":0,
        "volume":0,
        "widthOfLocks":0,
        "secondaryWidthOfLocks":null,
        "yearCompleted":1951,
        "congDist":"Congressional District 07, Minnesota",
        "city":"WATSON",
        "county":"Chippewa",
        "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",
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        "fedFundingIds":"1",
        "fedInspectionIds":"1",
        "fedOperationIds":"1",
        "fedOtherIds":"1",
        "fedOwnerIds":"1",
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        "formerNames":null,
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        "designerNames":"WPA, WPA - CEMVP",
        "otherNames":"Watson Sag & Chippewa River Channel",
        "ownerNames":"USACE - St. Paul District",
        "ownerTypeIds":"3",
        "primaryDamTypeId":8,
        "primaryOwnerTypeId":3,
        "primaryPurposeId":9,
        "purposeIds":"9;12;4;5;8",
        "dsacId":3,
        "femaRegion":"5",
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        "dataUpdated":"2024-11-14T12:00:00.000Z",
        "usaceDistrict":"St. Paul District",
        "noConsequencesId":0,
        "secretaryAgricultureBuiltId":null,
        "nrcsWatershedAuthorizationId":null,
        "isAssociatedStructureId":"No",
        "fedRegulatedId":"Yes",
        "inundationNidAddedId":1,
        "damStatusId":2,
        "huc06":"070200",
        "doi_region":null,
        "doi_region_name":"Great Lakes",
        "doi_region_number":3
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