Flood Control Dams in Illinois

Illinois has 201 flood control dams, of which 56 carry a high hazard classification. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate.

#	Dam	County	Height (ft)	Hazard	Condition	Year
1	Shelbyville Dam	Shelby	138	High	Not assessed	1970
2	Thorton Quarry Gap Dam	Cook	116	High	Not assessed	2013
3	Farmdale Dam	Tazewell	90	High	Not assessed	1951
4	Mill Creek Structure 1 Dam	Clark	81	Significant	Not assessed	1980
5	Fondulac Dam	Tazewell	74	High	Not assessed	1949
6	Rocky Run Lake Dam	Hancock	69	Significant	Not assessed	1971
7	Village of Valmeyer Dam	Monroe	68	Low	Not assessed	1995
8	Little Rocky Run Lake Dam	Hancock	64	Significant	Not assessed	1971
9	Jennifer Creek Reservoir Dam	Hancock	62	Low	Not assessed	1971
10	Tiskilwa Strucure 2 Dam	Bureau	61	High	Not assessed	1960
11	Tiskilwa Structure 5 Dam	Bureau	60	High	Not assessed	1960
12	Tiskilwa Structure 4 Dam	Bureau	59	High	Not assessed	1960
13	Bay Creek #8	Pope	59	Significant	Not assessed	1977
14	Lake Glenn Shoals Dam	Montgomery	56	Significant	Not assessed	1978
15	Rend Dam	Franklin	54	High	Not assessed	1971
16	Tiskilwa Structure 1 Dam	Bureau	49	High	Not assessed	1960
17	Coal & Crane Creek Structure 11	Schuyler	48	Low	Not assessed	1975
18	Alpine Dam	Winnebago	48	High	Not assessed	1942
19	Mill Creek Structure 9 Dam	Clark	46	Low	Not assessed	1986
20	Mill Creek Structure 7 Dam	Clark	42	Low	Not assessed	1976
21	Hambaugh-martin 1 Dam	Brown	41	Low	Not assessed	1961
22	Coal and Crane Ws Str 14	Schuyler	41	Low	Not assessed	1970
23	Page Park Dam	Winnebago	41	High	Not assessed	1980
24	Mill Creek Structure 8 Dam	Clark	40	Low	Not assessed	1987
25	Mill Creek Strcture 2 Dam	Clark	38	Low	Not assessed	1973
26	Mill Creek Structure 3 Dam	Clark	38	Significant	Not assessed	1976
27	Osage Lake Dam	Macoupin	38	Significant	Not assessed
28	Mccaw Pond Dam	Mercer	38	Low	Not assessed	1952
29	Shoal Creek Structure 2 Dam	Montgomery	38	Significant	Not assessed	1963
30	Hambaugh-martin 3 Dam	Brown	37	Low	Not assessed	1959
31	Bay Creek Structure 4 Dam	Johnson	36	Low	Not assessed	1977
32	Little Cache Structure 10 Dam	Johnson	36	Low	Not assessed	1969
33	Mill Creek Ws Str 4	Clark	35	Low	Not assessed	1976
34	Mill Creek Structure 6 Dam	Clark	34	Low	Not assessed	1976
35	Shoal Creek Structure 14 Dam	Montgomery	34	Low	Not assessed	1971
36	Briney Lake 2 Dam	Schuyler	34	Significant	Not assessed	1965
37	Sauk Trail Dam	Will	34	High	Not assessed	1980
38	Hadley Creek 2 Lake Dam	Adams	33	Low	Not assessed	1959
39	Billingsley Pond Dam 3	Schuyler	33	Low	Not assessed	1979
40	Pittsfield Lake 2 Dam	Pike	32	Low	Not assessed	1960
41	Hambaugh- Martin Ws Str 8	Brown	31	Low	Not assessed	1961
42	Little Cache Structure 5 Dam	Johnson	31	Low	Not assessed	1973
43	East Branch Fargo Creek Dam	Lee	31	High	Not assessed	1997
44	Hadley Creek Ws Str 29-6	Pike	31	Low	Not assessed	1958
45	Knight Hawk Coal/creek Paum Mine/pond 2 Dam	Jackson	30	Low	Not assessed	2007
46	Shoal Creek Structure 5 Dam	Montgomery	30	High	Not assessed	1973
47	Lake Kakusha Dam	LaSalle	29	High	Not assessed	1981
48	Memorial East Campus Lake Dam	St. Clair	28	Low	Not assessed	1958
49	Hambaugh- Martin Ws Str 7	Brown	27	Low	Not assessed	1961
50	Northeast Recreation Area Dam	LaSalle	27	High	Not assessed	1988
51	Buffalo Creek Dam	Lake	27	High	Not assessed	1983
52	Hadley Creek Ws Str 9-1	Adams	26	Low	Not assessed	1958
53	Hambaugh- Martin Ws Str 4	Brown	26	Low	Not assessed	1961
54	Upper Salt Creek Structure 3 Dam	Cook	26	High	Not assessed	1985
55	Fawell Dam	DuPage	26	High	Not assessed	1972
56	Mwrdgc Lower Wood Lake Dam	Fulton	26	Low	Not assessed	1958
57	Woodlake Estates Dam	Sangamon	26	High	Not assessed
58	Hadley Creek Ws Str 1-7	Adams	25	Low	Not assessed	1958
59	Hambaugh-martin 6 Dam	Brown	25	Low	Not assessed	1959
60	Old Tom Creek Ws Str 24	Henderson	25	Low	Not assessed	1955
61	Old Tom Creek Ws Str 25	Henderson	25	Low	Not assessed	1956
62	Brighton Lake Dam	Macoupin	25	High	Not assessed
63	Harrisburg-sahara Retention Impoundment Dam	Saline	25	Significant	Not assessed	2003
64	Joliet West Side Wastewater Treatment Plant Dam	Will	25	Low	Not assessed
65	Hambaugh-martin 5 Dam	Brown	23	Low	Not assessed	1960
66	Upper Salt Creek Structure 2 Dam	Cook	23	High	Not assessed	1984
67	Busse Woods Reservoir South Dam	Cook	23	High	Not assessed	1977
68	Baker Hill Detention Basin Dam	DuPage	23	High	Not assessed	1999
69	High Hill Farms Dam	McHenry	23	High	Not assessed	1977
70	Stonegate Lake Dam	Monroe	23	High	Not assessed	1960
71	Coffeen Southwest Detention Pond Dam	Montgomery	23	Low	Not assessed	2010
72	Levings Lake Dam	Winnebago	23	High	Not assessed	1935
73	Carlyle Dam - Saddle Dam 2	Clinton	22	Significant	Not assessed	1966
74	Midlothian Creek Dam	Cook	22	High	Not assessed	1975
75	Armstrong Park Flood Control Reservoir Dam	DuPage	22	High	Not assessed
76	Mwrdgc Edsall Lake Dam	Fulton	22	Low	Not assessed	1952
77	Old Tom Creek Ws Str 29	Henderson	22	Significant	Not assessed	1956
78	Hambaugh-martin 2 Dam	Brown	21	Significant	Not assessed	1959
79	Little Cache Structure 8 Dam	Johnson	21	Significant	Not assessed	1970
80	Pebble Creek Dam	Winnebago	21	High	Not assessed	1984
81	Lake George Dam	Cook	20	High	Not assessed	1969
82	Lake Law Dam	DuPage	20	Significant	Not assessed	1971
83	Hobson Road Dam	DuPage	20	Significant	Not assessed	1991
84	Mwrdgc Upper Wood Lake Dam	Fulton	20	Low	Not assessed	1958
85	Timber Lake Dam	St. Clair	20	Significant	Not assessed
86	Highland Community College Lake Dam	Stephenson	20	High	Not assessed	1970
87	Mwrdgc Eagle Lake Dam	Fulton	19	Low	Not assessed	1974
88	Fermilab Main Injector Dam	Kane	18	Low	Not assessed	1997
89	Glendale Gardens Detention Pond Dam	Madison	18	High	Not assessed	1998
90	Union Pacific Global III Dam	Ogle	18	Low	Not assessed	2002
91	Tullamore Dam	Lake	17	High	Not assessed	1994
92	Richton Crossing Dam	Cook	16	High	Not assessed	1976
93	Westwood Creek Dam	DuPage	16	Low	Not assessed	1996
94	Monroe Street Dam	Macon	16	Low	Not assessed	1991
95	Conway Farm Subdivision Lake Dam	Champaign	15	Significant	Not assessed	2004
96	Lake Taylorville Locust Creek Detention Basin Dam	Christian	15	Low	Not assessed	2001
97	Chicago Botanical Gardens South Inlet Dam	Cook	15	Low	Not assessed	1970
98	Lower Elmhurst Dam	Cook	15	High	Not assessed	1994
99	Kress Creek Regional Flood Control Dam	DuPage	15	Low	Not assessed	2006
100	Dupage Airport Upper Dam	DuPage	15	Low	Not assessed	1993

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