{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -88.98741, 41.32505 ] }, "properties":{ "provider":"MVR", "code":"IL06", "slug":"il06", "elevation":null, "horizontal_datum":"", "vertical_datum":"NGVD29", "state":"IL", "kind":"PROJECT", "nearest_city":"North Utica", "public_name":"Illinois River Starved Rock LD", "location_code":2255017, "nsid":null, "aliases":{ "NIDID":"IL00004", "CWMS Legacy Naming":"IL06", "CWMS Standard Naming":"IL06" }, "timeseries":[ { "tsid":"IL06.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":445.67, "delta24h":null, "sort_order":3, "results":null }, { "tsid":"IL06.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":459.22, "delta24h":null, "sort_order":1, "results":null }, { "tsid":"IL06.Flow.Inst.30Minutes.0.rev", "label":"Outflow", "base_parameter":"Flow", "parameter":"Flow", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-08-25T21:00:00Z", "latest_value":10005.1, "delta24h":null, "sort_order":7, "results":null } ], "name":"Illinois River Starved Rock LD", "hasResopsAverages":"false", "nidId":"IL00004", "nidid":"", "levels":[ { "slug":"elev.streambed", "label":"Streambed", "parameter":"Elev-Pool", "base_parameter":"Elev", "tsid":"IL06.Elev-Pool.Inst.0.Streambed", "latest_value":425.5, "units":"ft", "units_long_name":"Feet", "type":"CONSTANT" }, { "slug":"elev.top of dam", "label":"Top of Dam", "parameter":"Elev-Pool", "base_parameter":"Elev", "tsid":"IL06.Elev-Pool.Inst.0.Top of Dam", "latest_value":463.5, "units":"ft", "units_long_name":"Feet", "type":"CONSTANT" } ], "id":550311, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":null, "damLength":1429, "distance":null, "drainageArea":11056, "eapId":1, "dsacAssignedDate":"2021-12-02T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2024-05-28T12:00:00.000Z", "eapLastRevDate":"2018-08-01T12:00:00.000Z", "enforcementAuthorityId":1, "federalId":"IL00004", "oldFederalId":"IL00004", "hazardId":3, "hydraulicHeight":25, "inspectionAuthorityId":1, "inspectionDate":"2024-05-23T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":1, "latitude":41.3228052390001, "lengthOfLocks":600, "secondaryLengthOfLocks":null, "longitude":-88.98526454, "maxDischarge":164000, "maxStorage":16000, "nidHeight":35, "nidStorage":16000, "normalStorage":0, "numberOfLocks":1, "operationalStatusDate":"2021-12-02T12:00:00.000Z", "operationalStatusId":1, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":1, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The construction of Starved Rock Lock and Dam was begun by the State of Illinois in 1926 but was completed and placed into service by the U.S. Army Corps of Engineers (USACE) in 1933 for the purpose of navigation. Starved Rock Lock and Dam is located on the Illinois River about 1 river mile east of the Village of North Utica, 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 19 feet, depending on the river conditions. The dam has an overall length of 1,280 feet and consists of a 30 feet long concrete wall fixed dam section, a headgate section 518 feet long with 30 original headgates permanently sealed with concrete in 1982, a non-Federal hydropower facility constructed in 1995 at headgate bays 22 through 28, a boiler house for producing steam for winter Tainter gate operations, an 52 feet long concrete ice chute ogee spillway, and the movable Tainter gate section 680 feet in length with 10 Tainter gates for regulating the upper pool. The non-Federal hydropower facility is 125 feet long has 4 turbines for producing electricity. The dam ties into the sandstone bluffs on the south side of the river at Starved Rock State Park. During flood events on the Illinois River, the Tainter gates are raised out of the water to produce an open river condition. Large floods cannot be passed entirely through the dam, causing the lock site and adjacent areas, including Dee Bennet Road, to go under water. Once water levels recede, the site is cleaned and normal operation of the project features resume. The biggest flood on record was on April 19, 2013 and submerged the lock chamber by 3 feet and 10 inches of water.", "riskCharSummary":"USACE completed a risk assessment in June 2014 and classified the risk associated with Starved Rock Lock and Dam as moderate. The assessment investigated the risks to the project from the submergence of the Tainter gate counterweights during large floods, miter gate anchorage failure, Tainter gate failure due to barge impacts, and Tainter gate failure due to rock slope failure. The risk associated with the Tainter gate counterweight failure was reanalyzed in April 2021 to determine what would happen if all Tainter gates dropped to the closed position during a large flood. Due to the topography of the land in the vicinity of the lock and dam and the inflows during such an event, flooding impacts were almost identical whether the gates were open or closed. Based on these results, Starved Rock Lock and Dam was resubmitted for consideration to reclassify the risk of the project. The risk was reclassified as low in July 2021. Although unlikely, a dam failure would impact river navigation upstream of the dam only. 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 Starved Rock 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":2, "spillwayWidth":0, "stateFedId":"IL00004", "stateRegulatoryAgency":null, "stateRegulatedId":1, "structuralHeight":35, "submitDate":"2023-02-16T17:25:32.244Z", "surfaceArea":0, "volume":40000, "widthOfLocks":110, "secondaryWidthOfLocks":null, "yearCompleted":1933, "congDist":"Congressional District 14, Illinois", "city":"UTICA", "county":"LaSalle", "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":"1", "fedOwnerIds":"1", "fedRegulatoryIds":"1;13", "formerNames":null, "foundationTypeIds":"1", "nonFederalDamOnFederalId":0, "designerNames":null, "otherNames":"Starved Rock Pool", "ownerNames":"USACE - Rock Island District", "ownerTypeIds":"3", "primaryDamTypeId":11, "primaryOwnerTypeId":3, "primaryPurposeId":3, "purposeIds":"3;6", "dsacId":4, "femaRegion":"5", "lastEapExcerDate":"2025-02-04T12:00:00.000Z", "dataUpdated":"2025-02-24T12:00:00.000Z", "usaceDistrict":"Rock Island District", "noConsequencesId":1, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":2, "damStatusId":2, "huc06":"071300", "doi_region":null, "doi_region_name":"Great Lakes", "doi_region_number":3 }, "id":2255017, "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/2255017?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/2255017?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/2255017?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }