{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -80.08956, 40.50302 ] }, "properties":{ "provider":"LRP", "code":"Emsworth", "slug":"emsworth", "elevation":680.0, "horizontal_datum":"WGS84", "vertical_datum":"NGVD29", "state":"PA", "kind":"PROJECT", "nearest_city":"Ross Township", "public_name":"Emsworth L/D", "location_code":16639111, "nsid":null, "aliases":{ "NIDID":"PA00126" }, "timeseries":[ { "tsid":"Emsworth-Lower.Flow-Lower.Inst.1Hour.0.OBS", "label":"Outflow", "base_parameter":"Flow", "parameter":"Flow-Lower", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T22:00:00Z", "latest_value":41528.25, "delta24h":null, "sort_order":7, "results":null }, { "tsid":"Emsworth-Lower.Stage-Lower.Inst.1Hour.0.OBS", "label":"Stage Tailwater", "base_parameter":"Stage", "parameter":"Stage-Lower", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T22:00:00Z", "latest_value":16.12, "delta24h":null, "sort_order":5, "results":null }, { "tsid":"Emsworth-Lower.Stage-Upper.Inst.1Hour.0.OBS", "label":"Stage", "base_parameter":"Stage", "parameter":"Stage-Upper", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T21:00:00Z", "latest_value":16.1, "delta24h":null, "sort_order":4, "results":null }, { "tsid":"Emsworth-Lower.Precip-Inc.Total.1Hour.1Hour.OBS", "label":"Precipitation", "base_parameter":"Precip", "parameter":"Precip-Inc", "unit":"in", "unit_long_name":"Inches", "latest_time":"2026-04-14T22:00:00Z", "latest_value":0.18, "delta24h":null, "sort_order":16, "results":null } ], "name":"Emsworth L/D", "hasResopsAverages":"false", "nidId":"PA00126", "nidid":"", "levels":[ { "slug":"stage.streambed", "label":"Streambed", "parameter":"Stage", "base_parameter":"Stage", "tsid":"Emsworth.Stage.Inst.0.Streambed", "latest_value":0, "units":"ft", "units_long_name":"Feet" }, { "slug":"stage.top of dam", "label":"Top of Dam", "parameter":"Stage", "base_parameter":"Stage", "tsid":"Emsworth.Stage.Inst.0.Top of Dam", "latest_value":15.8, "units":"ft", "units_long_name":"Feet" } ], "id":549950, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":null, "damLength":1928, "distance":null, "drainageArea":19428, "eapId":1, "dsacAssignedDate":"2018-09-06T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2024-10-25T12:00:00.000Z", "eapLastRevDate":"2021-09-21T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"PA00126", "oldFederalId":"PA00126", "hazardId":3, "hydraulicHeight":22, "inspectionAuthorityId":0, "inspectionDate":"2022-06-14T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":40.503884053, "lengthOfLocks":600, "secondaryLengthOfLocks":null, "longitude":-80.089060553, "maxDischarge":300000, "maxStorage":42700, "nidHeight":25, "nidStorage":42700, "normalStorage":42700, "numberOfLocks":2, "operationalStatusDate":"2018-09-06T12:00:00.000Z", "operationalStatusId":1, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The U.S. Army Corps of Engineers (USACE) constructed Emsworth Locks and Dams across the Ohio River at Neville Island, PA in 1922. There are two dams, one on each side of Neville Island, which splits the Ohio River into two channels. In 1938, the dams were modified to include gates across the tops of the dams to better control river levels. The locks and dams have undergone several rehabilitations, the most recent of which was completed in 2014. The dams are situated in Allegheny County, Pennsylvania, about 6 miles downstream of the head of the Ohio River in Pittsburgh, Pennsylvania. The purpose of the dams is to create a navigation pool from the dams upstream to Allegheny River Lock and Dam 2, and Braddock Locks and Dam which is on the Monongahela River. The locks provide a lift of 18 feet, from the pool downstream of the dam (lower pool) to the pool above the dam (upper pool). The locks allow river traffic to travel upstream and downstream of the dam. The locks are rectangular chambers that are 110 feet wide by 600 feet long (main chamber) and 56 feet wide by 360 feet long (auxiliary chamber). The lock chambers are next to each other and are formed on each side by concrete walls and steel gates on the upstream and downstream sides. The upper pool is used for water supply intakes for nearby communities and provides recreational opportunities for metropolitan Pittsburgh. The total benefits to the region are nearly 400 million dollars each year. The dam does not provide the nearby communities with any protection from flooding.", "riskCharSummary":"The U.S. Army Corps of Engineers (USACE) constructed Emsworth Locks and Dams across the Ohio River at Neville Island, PA in 1922. There are two dams, one on each side of Neville Island, which splits the Ohio River into two channels. In 1938, the dams were modified to include gates across the tops of the dams to better control river levels. The locks and dams have undergone several rehabilitations, the most recent of which was completed in 2014. The dams are situated in Allegheny County, Pennsylvania, about 6 miles downstream of the head of the Ohio River in Pittsburgh, Pennsylvania. The purpose of the dams is to create a navigation pool from the dams upstream to Allegheny River Lock and Dam 2, and Braddock Locks and Dam which is on the Monongahela River. The locks provide a lift of 18 feet, from the pool downstream of the dam (lower pool) to the pool above the dam (upper pool). The locks allow river traffic to travel upstream and downstream of the dam. The locks are rectangular chambers that are 110 feet wide by 600 feet long (main chamber) and 56 feet wide by 360 feet long (auxiliary chamber). The lock chambers are next to each other and are formed on each side by concrete walls and steel gates on the upstream and downstream sides. The upper pool is used for water supply intakes for nearby communities and provides recreational opportunities for metropolitan Pittsburgh. The total benefits to the region are nearly 400 million dollars each year. The dam does not provide the nearby communities with any protection from flooding.", "riskManagementMeasures":"To ensure all steps are being taken to reduce the risk to the economy, we conduct routine monitoring and surveillance of the riverbed and locks and dams. We conduct emergency exercises with our external partners to improve communications and reactions in the event of an emergency that threatens the dam\u2019s upper pool or may adversely affect navigations. We regularly update our emergency action plan. We also communicate with the Coast Guard, the Waterways Association, and the shipping industry to keep them aware of conditions at the dam and the changes to the lock operations. We closely follow rainfall forecasts and river levels to determine when high river events may occur, in order to provide information for any necessary public or industry notifications. We also maintain good communications with industry to remove barges that may run aground near or on our dams. Information on river levels and forecasts are available to the public via the internet at: \n\nhttp://water.weather.gov/ahps2/forecasts.php?wfo=pbz", "riverName":"OHIO RIVER", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":1, "spillwayWidth":800, "stateFedId":"PA00126", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":25, "submitDate":"2023-02-16T17:25:09.637Z", "surfaceArea":2870, "volume":0, "widthOfLocks":110, "secondaryWidthOfLocks":null, "yearCompleted":1938, "congDist":"Congressional District 17, Pennsylvania", "city":"EMSWORTH", "county":"Allegheny", "aiannh":null, "websiteUrl":"https://www.usace.army.mil/Missions/Civil-Works/Dam-Safety-Program/Article/2870967/dam-safety-program/", "coreTypeIds":"2", "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":"CELRP", "otherNames":"Emsworth Pool", "ownerNames":"USACE - Pittsburgh District", "ownerTypeIds":"3", "primaryDamTypeId":9, "primaryOwnerTypeId":3, "primaryPurposeId":3, "purposeIds":"3", "dsacId":4, "femaRegion":"3", "lastEapExcerDate":null, "dataUpdated":"2025-06-02T12:00:00.000Z", "usaceDistrict":"Pittsburgh District", "noConsequencesId":1, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":2, "damStatusId":2, "huc06":"050301", "doi_region":null, "doi_region_name":"North Atlantic-Appalachian", "doi_region_number":1 }, "id":16639111, "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/16639111?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/16639111?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/16639111?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }