{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -79.47781, 40.89551 ] }, "properties":{ "provider":"LRP", "code":"Mosgrove", "slug":"mosgrove", "elevation":791.2, "horizontal_datum":"WGS84", "vertical_datum":"NGVD29", "state":"PA", "kind":"PROJECT", "nearest_city":"Butler", "public_name":"L/D-8, Mosgrove", "location_code":16550111, "nsid":null, "aliases":{ "NIDID":"PA00118" }, "timeseries":[ { "tsid":"Mosgrove-Upper.Stage-Lower.Inst.1Hour.0.OBS", "label":"Stage Tailwater", "base_parameter":"Stage", "parameter":"Stage-Lower", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T21:00:00Z", "latest_value":13.87, "delta24h":null, "sort_order":5, "results":null }, { "tsid":"Mosgrove-Upper.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":11.68, "delta24h":null, "sort_order":4, "results":null }, { "tsid":"Mosgrove-Upper.Flow-Upper.Inst.1Hour.0.OBS", "label":"Outflow", "base_parameter":"Flow", "parameter":"Flow-Upper", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T21:00:00Z", "latest_value":16310.97, "delta24h":null, "sort_order":7, "results":null } ], "name":"L/D-8, Mosgrove", "hasResopsAverages":"false", "nidId":"PA00118", "nidid":"", "levels":[ { "slug":"stage.streambed", "label":"Streambed", "parameter":"Stage", "base_parameter":"Stage", "tsid":"Mosgrove.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":"Mosgrove.Stage.Inst.0.Top of Dam", "latest_value":9, "units":"ft", "units_long_name":"Feet" } ], "id":550000, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":null, "damLength":1064, "distance":6, "drainageArea":8844, "eapId":1, "dsacAssignedDate":"2021-12-02T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2024-10-25T12:00:00.000Z", "eapLastRevDate":"2024-10-24T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"PA00118", "oldFederalId":"PA00118", "hazardId":2, "hydraulicHeight":40, "inspectionAuthorityId":0, "inspectionDate":"2024-09-30T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":40.8957013840001, "lengthOfLocks":360, "secondaryLengthOfLocks":null, "longitude":-79.4779141879999, "maxDischarge":70000, "maxStorage":15200, "nidHeight":60, "nidStorage":15200, "normalStorage":15200, "numberOfLocks":1, "operationalStatusDate":"2021-12-02T12:00:00.000Z", "operationalStatusId":1, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The U.S. Army Corps of Engineers (USACE) built Allegheny 8 Lock and Dam in 1931 across the Allegheny River. The dam is located near Templeton PA, about 53 miles upstream of the confluence of the Allegheny and Monongahela Rivers in Pittsburgh, PA. The purpose of the dam is to create a navigation pool from the dam to Allegheny 9 Lock and Dam, which is near located near Rimer, PA. The dam consists of a concrete spillway section, which means that the river flows freely over it. The lock provides a lift of about 18 feet, which is the height of the river level upstream of the dam (upper pool) above the river level downstream of the dam (lower pool). The lock allows river traffic to travel upstream or downstream of the dam. The lock consists of a rectangular chamber that is 56 feet wide by 360 feet long and formed on each side by concrete walls and steel gates on the upstream and downstream sides. A privately-operated hydropower plant is located in line with the dam near the right bank of the river. Intakes for water supply to nearby communities are situated in the upper pool. The upper pool also provides recreation opportunities for surrounding communities. The dam provides about 9 million dollars in economic benefits to the region each year. There are no means of controlling the flow over the dam and the dam does not provide the nearby communities any protection from flooding. The pool created by the dam provides recreation opportunities for the surrounding communities.", "riskCharSummary":"The most recent risk assessment of the dam was performed in 2021, which characterized the risk as very low, because there is no potential for life loss or significant economic damages in the unlikely event that the dam fails. Although the dam holds back water, a dam failure at Allegheny 8 Lock and Dam would not result in the flooding of downstream communities. \n\nIf the upper pool of the dam is released due to a dam failure, the primary consequences would be the loss of river navigation, water supply, recreation, and hydropower generation would be halted, resulting in a loss of economic benefits to the region of about 10 million dollars per year. The economic damage would be temporary, until the upper pool could be restored to allow resumption of shipping, hydropower generation, and boat recreation, which would damage the regional economy by about 9 million dollars per year. The economic damage would be temporary, until the upper pool could be restored. Although this scenario is possible, the project has performed well for over 90 years without incident. Due to the relatively low height of the dam, which lies entirely within the banks of the Allegheny River, downstream flooding would not be expected if the dam were to fail, and the upper pool was lost.", "riskManagementMeasures":"To ensure we are taking all steps to reduce the risk to the economy, we will continue to work closely with the Coast Guard, the Waterways Association, and the shipping industry to keep them aware of conditions at the dam and changes to lock operations. We conduct emergency exercises with our external partners to improve communication and reactions in the event of an emergency that threatens the dam or that may adversely affect economic benefits. We regularly update our emergency action plan. We conduct routine monitoring and surveillance of the lock and dam. We closely follow rainfall forecasts to determine when high river events may occur to provide information for any necessary public or industry notifications. We closely monitor river levels and provide advisories if river levels may become unsafe for shipping. 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":"ALLEGHENY RIVER", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":3, "spillwayWidth":933, "stateFedId":"PA00118", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":60, "submitDate":"2023-02-16T17:25:34.732Z", "surfaceArea":1010, "volume":0, "widthOfLocks":56, "secondaryWidthOfLocks":null, "yearCompleted":1931, "congDist":"Congressional District 15, Pennsylvania", "city":"KITTANNING", "county":"Armstrong", "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":"Allegheny River Pool 08", "ownerNames":"USACE - Pittsburgh District", "ownerTypeIds":"3", "primaryDamTypeId":9, "primaryOwnerTypeId":3, "primaryPurposeId":3, "purposeIds":"3;6", "dsacId":5, "femaRegion":"3", "lastEapExcerDate":null, "dataUpdated":"2025-05-30T12:00:00.000Z", "usaceDistrict":"Pittsburgh District", "noConsequencesId":1, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":2, "damStatusId":2, "huc06":"050100", "doi_region":null, "doi_region_name":"North Atlantic-Appalachian", "doi_region_number":1 }, "id":16550111, "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/16550111?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/16550111?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/16550111?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }