{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -88.28468, 41.39758 ] }, "properties":{ "provider":"MVR", "code":"IL04", "slug":"il04", "elevation":null, "horizontal_datum":"", "vertical_datum":"NGVD29", "state":"IL", "kind":"PROJECT", "nearest_city":"Channahon", "public_name":"Illinois River Dresden Island LD", "location_code":2355017, "nsid":null, "aliases":{ "NIDID":"IL00002", "CWMS Legacy Naming":"IL04", "CWMS Standard Naming":"IL04" }, "timeseries":[ { "tsid":"IL04.Flow.Inst.30Minutes.0.rev", "label":"Outflow", "base_parameter":"Flow", "parameter":"Flow", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-08-25T19:00:00Z", "latest_value":10026.7, "delta24h":null, "sort_order":7, "results":null }, { "tsid":"IL04.Elev-Pool.Inst.30Minutes.0.rev", "label":"Elevation", "base_parameter":"Elev", "parameter":"Elev-Pool", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-08-25T19:00:00Z", "latest_value":504.89, "delta24h":null, "sort_order":1, "results":null }, { "tsid":"IL04.Elev-Tail.Inst.30Minutes.0.rev", "label":"Elevation Tailwater", "base_parameter":"Elev", "parameter":"Elev-Tail", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-08-25T19:00:00Z", "latest_value":485.84, "delta24h":null, "sort_order":3, "results":null } ], "name":"Illinois River Dresden Island LD", "hasResopsAverages":"false", "nidId":"IL00002", "nidid":"", "levels":[ { "slug":"elev.streambed", "label":"Streambed", "parameter":"Elev-Tail", "base_parameter":"Elev", "tsid":"IL04.Elev-Tail.Inst.0.Streambed", "latest_value":470.5, "units":"ft", "units_long_name":"Feet", "type":"CONSTANT" }, { "slug":"elev.top of dam", "label":"Top of Dam", "parameter":"Elev-Tail", "base_parameter":"Elev", "tsid":"IL04.Elev-Tail.Inst.0.Top of Dam", "latest_value":509.5, "units":"ft", "units_long_name":"Feet", "type":"CONSTANT" } ], "id":550309, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":null, "damLength":1750, "distance":null, "drainageArea":7278, "eapId":1, "dsacAssignedDate":"2017-07-12T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2024-05-28T12:00:00.000Z", "eapLastRevDate":"2021-06-08T12:00:00.000Z", "enforcementAuthorityId":1, "federalId":"IL00002", "oldFederalId":"IL00002", "hazardId":3, "hydraulicHeight":22, "inspectionAuthorityId":1, "inspectionDate":"2024-04-23T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":1, "latitude":41.3995053690001, "lengthOfLocks":600, "secondaryLengthOfLocks":null, "longitude":-88.28130837, "maxDischarge":113000, "maxStorage":12000, "nidHeight":33, "nidStorage":12000, "normalStorage":0, "numberOfLocks":1, "operationalStatusDate":"2017-07-12T12:00:00.000Z", "operationalStatusId":1, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":1, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The construction of Dresden Island Lock and Dam was begun by the State of Illinois in 1920 but was completed and placed into service by the U.S. Army Corps of Engineers (USACE) in 1933 for the purpose of navigation. Dresden Island Lock and Dam is located on the Illinois River near Channahon, Illinois. The project consists of a lock chamber and a dam. The lock chamber is used to raise or lower river traffic between the upstream and downstream pools to navigate past the dam. The lock chamber can raise or lower river traffic a maximum of 22 feet, depending on the river conditions. The dam has an overall length of 1,607 feet and consists of an arch dam that spans 110 feet for a proposed auxiliary lock that was never completed, a 35 feet long concrete ogee fixed spillway, a Tainter gate section with an overall length of 616 feet with 9 Tainter gates for regulating the upper pool, a 30 feet long concrete ogee ice chute spillway, a boiler house pier for producing steam during winter gate operations, a headgate section 298 feet in length with 18 original headgates permanently sealed with concrete in 1982, and an earthen embankment extending 500 feet from the headgate section to the Illinois and Michigan Canal to the north. During flood events on the Illinois River, the Tainter gates are raised out of the water to produce an open river condition.", "riskCharSummary":"USACE completed a risk assessment in June 2014 and classified the risk associated with Dresden Island Lock and Dam as low. The assessment investigated the risks to the project from ice floes on the Tainter gates, barge impacts to the Tainter gates, Tainter gate counterweight submergence during large floods, failure of the Tainter gate machinery, and a failure of the miter gate anchorage resulting in a shutdown of the lock. Although unlikely, a dam failure would impact river navigation upstream of the dam only and a lock shutdown was estimated to be short enough to result in no substantial economic damages to navigation. There is no estimated life loss resulting from a failure of the dam and the flood wave produced by a dam failure would remain within the riverbanks resulting in minimal to no downstream property damages.", "riskManagementMeasures":"USACE works to reduce the risks posed to the community by Dresden Island Lock and Dam. USACE operations and engineering staff routinely conduct detailed inspections of the project to ensure the integrity of the lock and dam, identify new deficiencies, and monitor known deficiencies. The dam is well maintained through continuous operations and regular maintenance activities. The dam has a robust instrumentation and monitoring program that allows USACE staff to regularly monitor the dam\u2019s performance under changing river conditions. The dam\u2019s Emergency Action Plan is updated regularly, and the emergency notification charts are updated annually. This plan has been coordinated with state and local Emergency Management Agencies to help improve their dam incident response planning and preparedness responsibilities. Emergency exercises are routinely held with local and state emergency responders and stakeholders to enhance the local communities\u2019 emergency response plans.", "riverName":"ILLINOIS RIVER", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":1, "spillwayWidth":966, "stateFedId":"IL00002", "stateRegulatoryAgency":null, "stateRegulatedId":1, "structuralHeight":33, "submitDate":"2023-02-16T17:25:37.934Z", "surfaceArea":2180, "volume":90000, "widthOfLocks":110, "secondaryWidthOfLocks":null, "yearCompleted":1933, "congDist":"Congressional District 16, Illinois", "city":"MORRIS", "county":"Grundy", "aiannh":null, "websiteUrl":"https://www.usace.army.mil/Missions/Civil-Works/Dam-Safety-Program/Article/2870967/dam-safety-program/", "coreTypeIds":"2", "damTypeIds":"11;8;9", "fedConstructionIds":"1", "fedDesignIds":"1", "fedFundingIds":"1", "fedInspectionIds":"1", "fedOperationIds":"1", "fedOtherIds":"1", "fedOwnerIds":"1", "fedRegulatoryIds":"1", "formerNames":null, "foundationTypeIds":"1", "nonFederalDamOnFederalId":0, "designerNames":null, "otherNames":"Dresden Island Pool", "ownerNames":"USACE - Rock Island District", "ownerTypeIds":"3", "primaryDamTypeId":11, "primaryOwnerTypeId":3, "primaryPurposeId":3, "purposeIds":"3", "dsacId":4, "femaRegion":"5", "lastEapExcerDate":"2025-02-04T12:00:00.000Z", "dataUpdated":"2025-05-22T12:00:00.000Z", "usaceDistrict":"Rock Island District", "noConsequencesId":1, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":2, "damStatusId":2, "huc06":"071200", "doi_region":null, "doi_region_name":"Great Lakes", "doi_region_number":3 }, "id":2355017, "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/2355017?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/2355017?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/2355017?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }