{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -88.07736, 41.56721 ] }, "properties":{ "provider":"MVR", "code":"IL02", "slug":"il02", "elevation":null, "horizontal_datum":"", "vertical_datum":"NGVD29", "state":"IL", "kind":"PROJECT", "nearest_city":"Lockport", "public_name":"Illinois River Lockport LD", "location_code":2238017, "nsid":null, "aliases":{ "NIDID":"IL00007", "CWMS Legacy Naming":"IL02", "CWMS Standard Naming":"IL02" }, "timeseries":[ { "tsid":"IL02.Elev-Tail.Inst.30Minutes.0.rev", "label":"Elevation Tailwater", "base_parameter":"Elev", "parameter":"Elev-Tail", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-08-25T21:00:00Z", "latest_value":539.0, "delta24h":null, "sort_order":3, "results":null }, { "tsid":"IL02.Elev-Pool.Inst.30Minutes.0.rev", "label":"Elevation", "base_parameter":"Elev", "parameter":"Elev-Pool", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-08-25T21:00:00Z", "latest_value":575.81, "delta24h":null, "sort_order":1, "results":null } ], "name":"Illinois River Lockport LD", "hasResopsAverages":"false", "nidId":"IL00007", "nidid":"", "levels":[ { "slug":"elev.streambed", "label":"Streambed", "parameter":"Elev-Pool", "base_parameter":"Elev", "tsid":"IL02.Elev-Pool.Inst.0.Streambed", "latest_value":523.5, "units":"ft", "units_long_name":"Feet", "type":"CONSTANT" }, { "slug":"elev.top of dam", "label":"Top of Dam", "parameter":"Elev-Pool", "base_parameter":"Elev", "tsid":"IL02.Elev-Pool.Inst.0.Top of Dam", "latest_value":583.2, "units":"ft", "units_long_name":"Feet", "type":"CONSTANT" } ], "id":550314, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":null, "damLength":1100, "distance":null, "drainageArea":740, "eapId":1, "dsacAssignedDate":"2022-09-09T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2025-01-31T12:00:00.000Z", "eapLastRevDate":"2009-03-01T12:00:00.000Z", "enforcementAuthorityId":1, "federalId":"IL00007", "oldFederalId":"IL00007", "hazardId":4, "hydraulicHeight":42, "inspectionAuthorityId":1, "inspectionDate":"2020-03-01T12:00:00.000Z", "inspectionFrequency":1, "jurisdictionAuthorityId":1, "latitude":41.5689343290001, "lengthOfLocks":600, "secondaryLengthOfLocks":null, "longitude":-88.078053934, "maxDischarge":36000, "maxStorage":25000, "nidHeight":65, "nidStorage":25000, "normalStorage":0, "numberOfLocks":1, "operationalStatusDate":"2022-09-09T12:00:00.000Z", "operationalStatusId":1, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":1, "politicalPartyId":null, "privateDamId":null, "projectDescription":"Lockport Lock & Controlling Works is part of the Chicago Area Waterways System (CAWS) that reversed the flow of the Chicago and Calumet Rivers away from Lake Michigan toward the Mississippi River. The current authorized project purpose is to maintain the 9-foot navigation channel. The project also provides power generation benefits. The main components of the project include a 110-foot wide by 600-foot-long main lock having a lift of 39-feet, with upstream gates consisting of a vertical lift guard and a service gate, each 118-feet wide by 24-feet tall and weighing 180 tons, and a pair of miter gates 65-feet wide by 59-feet tall at the downstream end, each weighing 246 tons. There is an abandoned lock with a concrete bulkhead on the upstream end of the lock, one 20-foot sluice gate on a concrete spillway, and a powerhouse. On the right descending bank (RDB) there is a roller compacted concrete forebay wall, an approach dike with a slurry cutoff wall, an approach dike with an impermeable core, a bear trap dam that has been removed and replaced with a concrete cutoff wall, and the controlling works which includes seven operable sluice gates and eight bulk-headed sluice gate bays. The left descending bank (LDB) consists of a concrete panel guide wall. Lockport is a high-hazard potential navigation project located 291.1 miles upstream of the confluence of the Illinois and Mississippi River near the city of Lockport, IL. The upper pool extends about 35 miles upstream on the Calumet River to T.J. O\u2019Brien Lock and Dam and 36 miles upstream to the Chicago Lock on the Chicago River, both of which lead out to Lake Michigan. The Brandon Road Lock and Dam is located downstream about 5 miles at River Mile 286.0. The Controlling Works are approximately 2 miles upstream of the lock. The Metropolitan Water Reclamation District of Greater Chicago (MWRD) designed and constructed the original Lockport project, with the Controlling Works becoming operational in 1896 and the original lock and Powerhouse in 1907. The State of Illinois designed and partially constructed the existing lock from 1923 to 1930. The federal government, by authority of the Rivers and Harbors Act of 1930, completed construction and opened the lock in 1933. \nIn 1984, a memorandum of agreement (MOA) between the Department of the Army (DA) through the U.S. Army Corps of Engineers (USACE) and the MWRD, transferred primary maintenance responsibility of the Chicago Sanitary and Ship Canal (CSSC) to the USACE. This memorandum divides up responsibility between both organizations, specifically addressing features along the CSSC. The CAWS is regulated by the MWRD, who is responsible for flood control and sanitary wastewater disposal in the metropolitan Chicago area. MWRD is also responsible for operating and maintaining the Powerhouse. USACE responsibility within the CAWS is to operate and maintain the lock, maintain the features forming the dam, and to maintain the navigation channel.", "riskCharSummary":"USACE completed a risk assessment for Lockport Lock and Dam on 9 September 2022 and the risk was found to be very low. Lockport L&D is a key facility to maintain navigation in the CAWS, it also helps with flood risk management within the Chicago metropolitan area by allowing the waterway levels to be lowered during intense rain events. However, as the pool level is over 30-feet above the natural ground near Lockport, IL, a potential breach could cause significant flooding, especially in areas along the left bank in Lockport and further downstream in Joliet. Two risk drivers have been documented following a recent risk assessment. One is related to the performance of the Controlling Works, a project feature of the Lockport Lock & Controlling Works that has dual maintenance responsibilities by USACE and MWRD. The other is related to the performance of the left descending canal wall that retains the perched canal. The consequences of a dam failure at this project are economic losses, and potential for life loss and possible impact to the railway in some areas along the left bank. MWRD manages the pool ahead of large precipitation events by conducting operational releases at the Controlling Works to lower the water levels in the pool to account for the increasing inflows. Operational releases send water from the pool into the Des Plaines River running adjacent to the right descending bank. The released water joins the navigation channel directly downstream of the lock and powerhouse. The next downstream dam is the Brandon Road Lock & Dam that has substantial capacity to manage the increased flows from Lockport and not be affected by these operational releases.", "riskManagementMeasures":"USACE has implemented several measures to manage risk at the Lockport Lock and Dam. Project staff is continuously on-site to operate and maintain the lock with rapid communication with the Chicago Lock, T.J. O'Brien Lock and Dam upstream, and Brandon Road Lock and Dam downstream to communicate and minimize impacts to navigation. Close coordination occurs regularly between USACE and MWRD to identify and respond to issues that may arise. USACE repair crews are available at Peoria, IL for rapid response to critical issues and other resources can be brought in quickly if needed. The project has an Emergency Action Plan (EAP) that is coordinated with MWRD, the cities of Lockport and Joliet, and the State of Illinois. USACE completed a major rehabilitation project between 2008 and 2015. The major rehabilitation constructed a concrete cutoff wall keyed into bedrock along the right descending bank approach dike, installed a precast panel tie-back system to reinforce the canal wall along the left descending bank, repaired the piers and structure at the Controlling Works, replaced the existing powerhouse forebay wall embankment with a roller-compacted concrete forebay wall, removed trees from the embankments, and filled the abandoned exciter bays at the powerhouse with flowable fill to stop the minor leakage penetrating into the powerhouse. USACE dewatered the lock in the fall of 2019 for inspection and repairs to the lock structure and operating systems. USACE also maintains an array of instruments at the project to monitor performance.", "riverName":"CHICAGO SANITARY & SHIP CANAL", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":1, "spillwayWidth":0, "stateFedId":"IL00007", "stateRegulatoryAgency":"IDNR", "stateRegulatedId":1, "structuralHeight":65, "submitDate":"2023-10-24T15:36:20.322Z", "surfaceArea":2112, "volume":0, "widthOfLocks":110, "secondaryWidthOfLocks":null, "yearCompleted":1933, "congDist":"Congressional District 14, Illinois", "city":"JOLIET", "county":"Will", "aiannh":null, "websiteUrl":"https://www.usace.army.mil/Missions/Civil-Works/Dam-Safety-Program/Article/2870967/dam-safety-program/", "coreTypeIds":"2", "damTypeIds":"11;9", "fedConstructionIds":"1", "fedDesignIds":"1", "fedFundingIds":"1", "fedInspectionIds":"1;13", "fedOperationIds":"1", "fedOtherIds":"13", "fedOwnerIds":"1", "fedRegulatoryIds":"1;13", "formerNames":"Lockport Lock and Dam", "foundationTypeIds":"1", "nonFederalDamOnFederalId":0, "designerNames":null, "otherNames":null, "ownerNames":"USACE - Chicago District", "ownerTypeIds":"3", "primaryDamTypeId":11, "primaryOwnerTypeId":3, "primaryPurposeId":3, "purposeIds":"3;6;9", "dsacId":5, "femaRegion":"5", "lastEapExcerDate":"2024-09-18T12:00:00.000Z", "dataUpdated":"2025-04-17T12:00:00.000Z", "usaceDistrict":"Chicago District", "noConsequencesId":0, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":1, "damStatusId":2, "huc06":"071200", "doi_region":null, "doi_region_name":"Great Lakes", "doi_region_number":3 }, "id":2238017, "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/2238017?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/2238017?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/2238017?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }