Debris Control Dams in Illinois

Illinois has 36 debris control dams, of which 5 carry a high hazard classification. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion.

#	Dam	County	Height (ft)	Hazard	Condition	Year
1	Coffeen Gmf Gypsum Stack Dam	Montgomery	108	High	Not assessed
2	Dynegy/vermilion Station/fly Ash Disposal Pond Dam	Vermilion	40	Low	Not assessed	1991
3	Dynegy/havana Sta/east Ash Pond Dam	Mason	36	High	Not assessed
4	Springfield Coal/industry/pond 30 Dam	Schuyler	36	Low	Not assessed
5	Southern Il Power Fly Ash Disp Pond B-3 Dam	Williamson	36	Low	Not assessed	1986
6	Pittsfield Dredge Disposal Pond Dam	Pike	35	Low	Not assessed	1997
7	Springfield Coal/industry/pond 31 Dam	McDonough	34	Low	Not assessed
8	Springfield Coal/industry/incline Pond 12 Dams	McDonough	34	Low	Not assessed	1997
9	Springfield Coal/industry/pond 26 Dam	Schuyler	33	Low	Not assessed	2000
10	Waddell Dam	Schuyler	33	Low	Not assessed	1998
11	Dynegy /wood River West Ash Disposal Pond Dam	Madison	32	Low	Not assessed	1995
12	Springfield Coal/industry/pond 27 Dam	Schuyler	31	Low	Not assessed	2000
13	Springfield Coal/industry/pond 33 Dam	McDonough	30	Low	Not assessed
14	Springfield Coal/industry/pond 29 Dam	Schuyler	30	Low	Not assessed
15	Faries Park Dredge Disposal Dam	Macon	29	High	Not assessed	1994
16	Springfield Coal/industry/pond 20 Dam	McDonough	29	Low	Not assessed	1994
17	Morrison Rockwood Siltation Pond Dam	Whiteside	29	Low	Not assessed	1981
18	Southern Il Power South Fly Ash Pond Dam	Williamson	29	Low	Not assessed	1989
19	Dynegy/havana Station/cell 1, Polishing P	Mason	26	High	Not assessed	1993
20	Lake Galena Sed Pond 1 Dam	Jo Daviess	25	Low	Not assessed	1989
21	Springfield Coal/industry/pond 22 Dam	McDonough	25	Low	Not assessed	1997
22	Anderson Pond Dam	Rock Island	25	Low	Not assessed	1979
23	Lake Carroll Sedimentation Pond 3 Dam	Carroll	23	Low	Not assessed	1989
24	Lake Carroll Sedimentation Disposal Dam 5	Carroll	21	Low	Not assessed	1992
25	Rlf/pawnee Mine/slurry Impoundment 3 Dam	Christian	20	Low	Not assessed	1999
26	Hutsonville Fly Ash Pond Dam	Crawford	20	Low	Not assessed	1987
27	Johnson Lake Dam	Wayne	20	Low	Not assessed	2002
28	Lake Taylorville South Fork Sediment Basin Dam	Christian	17	Low	Not assessed	2003
29	Skokie Lagoons Dredge Disposal Dam	Cook	16	Low	Not assessed	1990
30	Coffeen Gmf Recycle Pond Dam	Montgomery	16	Low	Not assessed
31	Clinton Power Station/dredge Disposal Pond Dam	De Witt	15	Low	Not assessed	1990
32	Lake Carroll Sedimentation Pond 2 Dam	Carroll	14	Low	Not assessed	1988
33	Coopers Farm Sediment Storage Dam	Lake	13	High	Not assessed
34	Site B Dredge Disposal Pond Dam	Randolph	12	Low	Not assessed	1992
35	Pittsfield Sediment Trap Dam	Pike	11	Low	Not assessed	1997
36	Otter Lake Low Flow Dam	Macoupin	6	Low	Not assessed	2008

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