Illinois Dams

1,630 dams tracked by the National Inventory of Dams

Total Dams

1,630

High Hazard

251

15.4%

Poor / Unsatisfactory

6

Average Age

61 yrs

Hazard Classification

High251 (15.4%)
Significant360 (22.1%)
Low1,008 (61.8%)

Condition Assessment

Satisfactory8 (0.5%)
Fair6 (0.4%)
Poor / Unsatisfactory6 (0.4%)
Not Rated1,610 (98.8%)

Federal

48

State

68

Local

286

Private

1,153

All Dams in Illinois

Showing 301325 of 360

Dam NameHeight (ft)YearHazardCondition
Stonebridge Crossing Dam

Madison County

292005SignificantNot Available
Stonehenge Lake Dam

St. Clair County

332008SignificantNot Available
Stratton Lock and Dam

McHenry County

71939SignificantNot Available
Streator Vermilion River Dam

Livingston County

141925SignificantNot Available
Structure No. 12

Johnson County

541974SignificantNot Rated
Sugar Creek Lake Dam

Wabash County

14SignificantNot Available
Swint Lake Dam

Henry County

341968SignificantNot Available
Sylvan Lake Dam

Lake County

151920SignificantNot Available
Tampier Lake Dam

Cook County

91964SignificantNot Available
Tara Lake Dam

Kane County

231964SignificantNot Available
Techny Reservoir Dam

Cook County

111979SignificantNot Available
Third Lake Dam

Edgar County

391961SignificantNot Available
Thirteen Club Dam

Peoria County

30SignificantNot Available
Timber Lake Dam

Carroll County

251960SignificantNot Available
Timber Lake Dam

Madison County

201970SignificantNot Available
Timber Lake Dam

St. Clair County

20SignificantNot Available
Tompkins Pond Dam

Fulton County

281974SignificantNot Available
Touhy Avenue Reservoir Dam

Cook County

102004SignificantNot Available
Tower Lake Dam

Madison County

611964SignificantNot Available
Twenty One Guns Campground Lake Dam

Clark County

301957SignificantNot Available
Twin Lake Dam

St. Clair County

15SignificantNot Available
Twin Lakes Drive Dam

Madison County

1980SignificantNot Available
Valevue Lake Dam

Morgan County

201970SignificantNot Available
Venado Grande Lake Dam

Tazewell County

441975SignificantNot Available
Venado Pequeno Lake Dam

Tazewell County

441975SignificantNot Available
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.