{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -80.75731, 41.30008 ] }, "properties":{ "provider":"LRP", "code":"Mosquito", "slug":"mosquito", "elevation":0.0, "horizontal_datum":"WGS84", "vertical_datum":"NAVD88", "state":"OH", "kind":"PROJECT", "nearest_city":"Warren", "public_name":"Mosquito Creek Lake", "location_code":16721111, "nsid":null, "aliases":{ "NIDID":"OH00031" }, "timeseries":[ { "tsid":"Mosquito-Lake.Elev.Inst.1Hour.0.OBS", "label":"Elevation", "base_parameter":"Elev", "parameter":"Elev", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T21:00:00Z", "latest_value":901.25, "delta24h":null, "sort_order":1, "results":null }, { "tsid":"Mosquito-Outflow.Flow.Inst.1Hour.0.OBS", "label":"Outflow", "base_parameter":"Flow", "parameter":"Flow", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T21:00:00Z", "latest_value":299.28, "delta24h":null, "sort_order":7, "results":null }, { "tsid":"Mosquito-Lake.Flow-Inflow-Comp.Inst.1Hour.0.A2W", "label":"Inflow", "base_parameter":"Flow", "parameter":"Flow-Inflow-Comp", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T18:00:00Z", "latest_value":299.28, "delta24h":null, "sort_order":6, "results":null }, { "tsid":"Mosquito-Lake.Stor.Inst.1Hour.0.OBS", "label":"Flood Storage", "base_parameter":"Stor", "parameter":"Stor", "unit":"ac-ft", "unit_long_name":"Acre-feet", "latest_time":"2026-04-14T21:00:00Z", "latest_value":80282.37, "delta24h":null, "sort_order":11, "results":null }, { "tsid":"Mosquito-Outflow.Stage.Inst.1Hour.0.OBS", "label":"Stage Tailwater", "base_parameter":"Stage", "parameter":"Stage", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T21:00:00Z", "latest_value":2.59, "delta24h":null, "sort_order":5, "results":null }, { "tsid":"Mosquito-Outflow.Precip-Inc.Total.1Hour.1Hour.OBS", "label":"Precipitation", "base_parameter":"Precip", "parameter":"Precip-Inc", "unit":"in", "unit_long_name":"Inches", "latest_time":"2026-04-14T21:00:00Z", "latest_value":0.14, "delta24h":null, "sort_order":16, "results":null }, { "tsid":"Mosquito-Outflow.Stage.Inst.1Hour.0.OBS", "label":"Stage", "base_parameter":"Stage", "parameter":"Stage", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T21:00:00Z", "latest_value":2.59, "delta24h":null, "sort_order":4, "results":null }, { "tsid":"Mosquito-Lake.Stor.Inst.1Hour.0.OBS", "label":"Conservation Storage", "base_parameter":"Stor", "parameter":"Stor", "unit":"ac-ft", "unit_long_name":"Acre-feet", "latest_time":"2026-04-14T21:00:00Z", "latest_value":80282.37, "delta24h":null, "sort_order":13, "results":null } ], "name":"Mosquito Creek Lake", "hasResopsAverages":"false", "nidId":"OH00031", "nidid":"", "levels":[ { "slug":"elev.minimum", "label":"Minimum", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Mosquito.Elev.Inst.0.Minimum", "latest_value":880.33, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.streambed", "label":"Streambed", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Mosquito.Elev.Inst.0.Streambed", "latest_value":868.4, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of conservation", "label":"Top of Conservation", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Mosquito.Elev.Inst.0.Top of Conservation", "latest_value":900.73, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of dam", "label":"Top of Dam", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Mosquito.Elev.Inst.0.Top of Dam", "latest_value":915.4, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of flood", "label":"Top of Flood", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Mosquito.Elev.Inst.0.Top of Flood", "latest_value":903.33, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of full", "label":"Top of Full", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Mosquito.Elev.Inst.0.Top of Full", "latest_value":903.33, "units":"ft", "units_long_name":"Feet" }, { "slug":"elev.top of inactive", "label":"Top of Inactive", "parameter":"Elev", "base_parameter":"Elev", "tsid":"Mosquito.Elev.Inst.0.Top of Inactive", "latest_value":880.33, "units":"ft", "units_long_name":"Feet" }, { "slug":"stor.minimum", "label":"Minimum", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Mosquito.Stor.Inst.0.Minimum", "latest_value":645, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.streambed", "label":"Streambed", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Mosquito.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":"Mosquito.Stor.Inst.0.Top of Conservation", "latest_value":76260, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of dam", "label":"Top of Dam", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Mosquito.Stor.Inst.0.Top of Dam", "latest_value":235945, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of flood", "label":"Top of Flood", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Mosquito.Stor.Inst.0.Top of Flood", "latest_value":97700, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of full", "label":"Top of Full", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Mosquito.Stor.Inst.0.Top of Full", "latest_value":97700, "units":"ac-ft", "units_long_name":"Acre-feet" }, { "slug":"stor.top of inactive", "label":"Top of Inactive", "parameter":"Stor", "base_parameter":"Stor", "tsid":"Mosquito.Stor.Inst.0.Top of Inactive", "latest_value":645, "units":"ac-ft", "units_long_name":"Acre-feet" } ], "id":550163, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":null, "damLength":5650, "distance":null, "drainageArea":97, "eapId":1, "dsacAssignedDate":"2022-08-11T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2024-10-25T12:00:00.000Z", "eapLastRevDate":null, "enforcementAuthorityId":0, "federalId":"OH00031", "oldFederalId":"OH00031", "hazardId":4, "hydraulicHeight":43, "inspectionAuthorityId":0, "inspectionDate":"2021-05-07T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":41.2999990000001, "lengthOfLocks":0, "secondaryLengthOfLocks":null, "longitude":-80.7583309999999, "maxDischarge":4180, "maxStorage":180000, "nidHeight":47, "nidStorage":180000, "normalStorage":82400, "numberOfLocks":0, "operationalStatusDate":"2022-08-11T12:00:00.000Z", "operationalStatusId":1, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The U.S. Army Corps of Engineers (USACE) constructed Mosquito Creek Dam in 1943 across Mosquito Creek, which created the Mosquito Creek Lake, whose primary purpose is to hold back water during flood events to reduce the risk of downstream flooding on Mosquito Creek and the Mahoning River, including Niles, Girard and Youngstown, Ohio. Since it went into operation, the dam has reduced damage caused by downstream flooding by more than an estimated $500 million. The reservoir also serves to store rainfall from late winter through early summer to augment flow during the drier late summer and early autumn months, provide water supply to downstream communities, and is used for recreational purposes. The dam is composed of an earthen embankment that is a maximum of 47 feet high. Ohio State Route 305 (Wilson Sharpsville Road) traverses a portion of the approximately one-mile long dam crest. The reservoir levels are managed to approved levels throughout the year, normally by means of releases through a conduit that discharges water to the downstream Mosquito Creek. In order to reduce the possibility that the reservoir will overtop the dam, a natural spillway, which consists of low ground, exists about eight miles distant from the dam, at the northwest end of the reservoir.", "riskCharSummary":"Dams do not eliminate all risk of flooding. USACE works to address all types of flood risk associated with the dam. Dams have limited capacity to store water. Water may be released through the dam to manage water levels up or downstream or to relieve pressure on the dam to maintain its structural integrity. Severe weather events that bring inconsistent or larger amounts of water into the system can also lead to dam releases or in some cases overwhelm and lead to issues occurring at a dam. More detail related to this specific dam will be added at a future time.", "riskManagementMeasures":"To ensure we are taking all steps to reduce the risk to the public, we will continue to work closely with state and local emergency managers, conducting emergency exercises, and incorporate any new information into our emergency action plan. We will also continue our rigorous monitoring and surveillance of the dam, especially during high water events. We closely follow rainfall forecasts to determine when high reservoir levels may occur to provide information for any necessary flood warnings. We will work with local communities to provide opportunities to engage with local residents to help them understand how they can better prepare for a flood. In partnership with the US Geologic Survey and the National Weather Service, information on current and forecasted lake levels at Pittsburgh District reservoirs are available to the public via the internet at: \nhttps://www.lrp.usace.army.mil/Portals/72/docs/WaterManagement/ResSumPlots.pdf.", "riverName":"MOSQUITO CREEK", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":3, "spillwayWidth":260, "stateFedId":"OH00031", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":47, "submitDate":"2023-02-16T17:25:40.598Z", "surfaceArea":7850, "volume":600000, "widthOfLocks":0, "secondaryWidthOfLocks":null, "yearCompleted":1944, "congDist":"Congressional District 14, Ohio", "city":"WARREN", "county":"Trumbull", "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":"CELRP", "otherNames":"Mosquito Creek Lake", "ownerNames":"USACE - Pittsburgh District", "ownerTypeIds":"3", "primaryDamTypeId":8, "primaryOwnerTypeId":3, "primaryPurposeId":9, "purposeIds":"9;12;4;5;8", "dsacId":4, "femaRegion":"5", "lastEapExcerDate":"2024-05-23T12:00:00.000Z", "dataUpdated":"2025-05-29T12:00:00.000Z", "usaceDistrict":"Pittsburgh District", "noConsequencesId":0, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":1, "damStatusId":2, "huc06":"050301", "doi_region":null, "doi_region_name":"Great Lakes", "doi_region_number":3 }, "id":16721111, "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/16721111?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/16721111?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/16721111?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }