Dams in Illinois

%!s(int=1630)Total Dams
250High Hazard
361Significant
1008Low Hazard

Dam Safety in Illinois

Illinois has 1,630 dams tracked in the National Inventory of Dams. Of these, 250 (15%) are classified as high hazard — meaning failure would probably cause loss of human life — and 361 are classified as significant hazard. Currently, 6 dams in the state have a condition assessment of poor or unsatisfactory, indicating recognized safety deficiencies.

The average dam in Illinois is 60 years old. The most common purpose for dams in Illinois is recreation, accounting for 858 of the state's dams.

Use the search above to find dams near any address in Illinois, or browse by county below. Each dam listing includes its hazard potential classification, condition assessment, physical characteristics, and inspection history from the NID.

Illinois Dam Facts

Total Dams1,630
High Hazard Dams250
Average Dam Age60 years
Tallest Dam175 ft
Largest Reservoir1,026,546 acre-ft
Poor/Unsatisfactory Condition6

Notable Dams in Illinois

Counties in Illinois

Adams25 dams4 high hazardAlexander3 dams1 high hazardBallard1 damsBond13 damsBoone2 dams1 high hazardBrown16 damsBureau14 dams6 high hazardCarroll6 dams1 high hazardCass6 dams2 high hazardChampaign7 dams1 high hazardChristian15 dams4 high hazardClark20 dams1 high hazardClay6 damsClinton14 dams2 high hazardColes15 dams2 high hazardCook44 dams14 high hazardCrawford11 dams1 high hazardCumberland4 dams1 high hazardDe Witt7 dams1 high hazardDeKalb8 dams3 high hazardDouglas4 damsDuPage30 dams6 high hazardEdgar6 damsEdwards6 damsEffingham10 damsFayette13 dams1 high hazardFord2 damsFranklin33 dams6 high hazardFulton56 dams6 high hazardGallatin10 damsGreene20 damsGrundy6 dams1 high hazardHamilton13 dams4 high hazardHancock13 dams1 high hazardHardin6 damsHenderson9 damsHenry11 dams1 high hazardIroquois4 damsJackson23 dams7 high hazardJasper8 damsJefferson28 dams4 high hazardJersey31 dams1 high hazardJo Daviess7 dams2 high hazardJohnson18 damsKane36 dams6 high hazardKankakee2 dams1 high hazardKendall7 damsKnox24 dams4 high hazardLaSalle18 dams7 high hazardLake28 dams10 high hazardLawrence2 damsLee7 dams1 high hazardLivingston6 damsLogan4 dams2 high hazardMacon5 dams2 high hazardMacoupin97 dams8 high hazardMadison63 dams12 high hazardMarion20 dams3 high hazardMarshall4 dams2 high hazardMason9 dams3 high hazardMassac4 damsMcDonough29 dams1 high hazardMcHenry21 dams4 high hazardMcLean16 dams4 high hazardMenard4 dams1 high hazardMercer13 damsMonroe22 dams4 high hazardMontgomery48 dams8 high hazardMorgan27 dams1 high hazardMoultrie5 damsOgle9 dams2 high hazardPeoria49 dams7 high hazardPerry11 damsPiatt1 damsPike11 dams1 high hazardPope5 damsPulaski4 damsPutnam7 dams1 high hazardRandolph26 dams2 high hazardRichland10 dams2 high hazardRock Island12 dams2 high hazardSaline23 dams2 high hazardSangamon18 dams3 high hazardSchuyler30 dams4 high hazardScott3 damsShelby7 dams2 high hazardSt. Charles1 damsSt. Clair60 dams16 high hazardStark4 damsStephenson4 dams2 high hazardTazewell43 dams5 high hazardUnion8 dams3 high hazardVermilion9 dams1 high hazardWabash5 damsWarren13 damsWashington13 dams2 high hazardWayne10 damsWhite7 dams2 high hazardWhiteside6 dams1 high hazardWill38 dams7 high hazardWilliamson30 dams6 high hazardWinnebago18 dams7 high hazardWoodford10 dams1 high hazard

High Hazard Dams in Illinois

DamCountyHeightConditionPurpose
Shelbyville DamShelby138 ftNot AvailableFlood Risk Reduction
Duck Creek Station DamsFulton123 ftNot AvailableOther
Devil`s Kitchen DamWilliamson121 ftSatisfactoryFish and Wildlife Pond
Sugar Camp/mine 1/north Refuse Disposal Facility DamFranklin117 ftNot AvailableTailings
Macoupin Energy Refuse Disposal Area 6Macoupin117 ftNot AvailableTailings
Thorton Quarry Gap DamCook116 ftNot AvailableFlood Risk Reduction
American Coal/galatia/bunkhouse Rdf DamSaline110 ftNot AvailableOther
International Coal/viper/slurry ImpoundmentLogan109 ftNot AvailableOther
Arclar/willow Lake/refuse Area 2 DamSaline108 ftNot AvailableTailings
Coffeen Gmf Gypsum Stack DamMontgomery108 ftNot AvailableDebris Control
International Coal/viper/north Slurry Impoundment DamLogan105 ftNot AvailableOther
Consol/rend Lake Mine/slurry Cell 2 DamJefferson100 ftNot AvailableOther
Kinkaid Lake DamJackson96 ftNot AvailableRecreation
Macoupin Energy/refuse Disposal Area 5Macoupin95 ftNot AvailableOther
Farmdale DamTazewell90 ftNot AvailableFlood Risk Reduction
Williamson Energy/pond Creek Mine/refuse Disposal FacilityWilliamson88 ftNot AvailableOther
Little Grassy DamWilliamson88 ftFairFish and Wildlife Pond
Lake Thunderbird DamPutnam86 ftNot AvailableRecreation
Sugar Camp/mine 1/coal Refuse Disposal 1 DamFranklin86 ftNot AvailableTailings
Lake Petersburg DamMenard85 ftNot AvailableRecreation
Wildwood Lake DamMarshall84 ftNot AvailableRecreation
East Fork Lake DamRichland84 ftNot AvailableRecreation
Lake Mcmaster DamKnox81 ftNot AvailableRecreation
Hillsboro Energy/deer Run/crd 1 DamMontgomery80 ftNot AvailableTailings
Lake George DamRock Island78 ftNot AvailableRecreation
Apple Canyon Lake DamJo Daviess78 ftNot AvailableRecreation
Hillboro Energy/deer Run/crd 2 DamMontgomery77 ftNot AvailableOther
Hamilton County Coal/hamilton County/coal Refuse 2 DamHamilton76 ftNot AvailableOther
Arentsen Pond DamHamilton75 ftNot AvailableOther
Consol/rend Lake Mine/slurry Impoundment 1Jefferson75 ftNot AvailableOther
Cedar Lake DamJackson74 ftNot AvailableRecreation
Spoon Lake DamKnox74 ftNot AvailableRecreation
Leroy Hinkle DamCarroll74 ftNot AvailableRecreation
Fondulac DamTazewell74 ftNot AvailableFlood Risk Reduction
Stonewolf Golf Course Lake DamSt. Clair72 ftNot AvailableRecreation
Evergreen Lake DamWoodford69 ftNot AvailableWater Supply
Prairie Lake DamCass68 ftNot AvailableRecreation
Springfield Coal/orient 4/east Slurry ImpWilliamson66 ftNot AvailableOther
Crab Orchard DamWilliamson65 ftFairFish and Wildlife Pond
Clinton Power Station/clinton Lake DamDe Witt65 ftNot AvailableRecreation
Lockport Lock And Controlling WorksWill65 ftNot AvailableNavigation
Doyle Lake DamAdams62 ftNot AvailableFish and Wildlife Pond
Tiskilwa Strucure 2 DamBureau61 ftNot AvailableFlood Risk Reduction
Smallpox Creek DamJo Daviess60 ftNot AvailableRecreation
Tiskilwa Structure 5 DamBureau60 ftNot AvailableFlood Risk Reduction
Tom Steele DamRock Island59 ftNot AvailableRecreation
Tiskilwa Structure 4 DamBureau59 ftNot AvailableFlood Risk Reduction
Macoupin Energy Smith Reservoir DamMacoupin58 ftNot AvailableRecreation
Canton City Lake DamFulton57 ftNot AvailableRecreation
Exxonmobil Coal Usa/mine 2/refuse Disposal Area 2Clinton56 ftNot AvailableOther
Lake Camelot DamPeoria56 ftNot AvailableRecreation
Airstrip Reservoir DamJersey55 ftNot AvailableRecreation
Lake Of Egypt DamWilliamson55 ftNot AvailableOther
Baldwin Plant Cooling Lake DikesSt. Clair55 ftNot AvailableOther
Sangchris Lake DamChristian55 ftNot AvailableRecreation
Spring Arbor Lake DamJackson55 ftNot AvailableRecreation
Baldwin Plant Cooling Lake DamRandolph55 ftNot AvailableOther
Si Energy/mine 25/slurry Cell 2 DamFranklin55 ftNot AvailableOther
Lake Lancelot DamPeoria54 ftNot AvailableRecreation
Lake Lou Yaeger DamMontgomery54 ftNot AvailableRecreation
Rend DamFranklin54 ftNot AvailableFlood Risk Reduction
Pana Lake DamShelby53 ftNot AvailableRecreation
Lake Storey DamKnox53 ftNot AvailableRecreation
Lincoln Trail State Park Lake DamClark52 ftNot AvailableRecreation
Hollis Park DamPeoria51 ftNot AvailableRecreation
Litchfield City Lake DamMontgomery51 ftNot AvailableRecreation
Horton Lake DamHancock50 ftNot AvailableRecreation
Vandalia Municipal Reservoir DamFayette50 ftNot AvailableRecreation
Norris Slurry ImpoundmentFulton50 ftNot AvailableOther
Tiskilwa Structure 1 DamBureau49 ftNot AvailableFlood Risk Reduction
Spaulding DamSangamon48 ftNot AvailableRecreation
Alpine DamWinnebago48 ftNot AvailableFlood Risk Reduction
Exxonmobil Coal Usa/mine 2/refuse Disposal Area 1Clinton47 ftNot AvailableTailings
Coal & Crane Creek Structure 5Schuyler47 ftNot AvailableOther
Paradise Lake DamColes46 ftNot AvailableRecreation
Pierce Lake DamWinnebago46 ftNot AvailableRecreation
Clearwater Pond DamBureau45 ftNot AvailableOther
Dunlap Lake DamMadison45 ftNot AvailableRecreation
Lake Vermilion DamVermilion45 ftNot AvailableWater Supply
Alto Pass Reservoir DamUnion45 ftNot AvailableRecreation
Brandon Road Lock And DamWill45 ftNot AvailableNavigation
Drake Lake DamCass44 ftNot AvailableFish and Wildlife Pond
Lake Summerset DamWinnebago44 ftNot AvailableRecreation
Stone Creek Golf Club Lake DamJackson43 ftNot AvailableWater Supply
Coal And Crane Creek Structure 8Schuyler43 ftNot AvailableOther
Macoupin Energy Recirculation Pond DamMacoupin43 ftNot AvailableWater Supply
Coal And Crane Creek Structure 12Schuyler43 ftNot AvailableOther
Lasalle Co. Nuclear Station Cooling Lake DamLaSalle43 ftNot AvailableOther
Castle Ridge Lake DamMadison42 ftNot AvailableRecreation
Eckert Lake DamSt. Clair42 ftNot AvailableRecreation
Moraine View DamMcLean42 ftNot AvailableRecreation
Sunset Hills Lake 1 DamTazewell42 ftNot AvailableIrrigation
Lake Carlton DamWhiteside41 ftNot AvailableRecreation
Holiday Lake DamLaSalle41 ftNot AvailableRecreation
Page Park DamWinnebago41 ftNot AvailableFlood Risk Reduction
Coulterville Coal/gateway Mine/slurry Cell 3 DamRandolph41 ftNot AvailableOther
Lake Tanglewood DamMarshall40 ftNot AvailableRecreation
Miller Lake DamJefferson40 ftNot AvailableRecreation
Lake In The Hills Dam 1McHenry40 ftNot AvailableRecreation
Prairie State Energy Raw Water DamWashington40 ftNot AvailableWater Supply