Grade Stabilization Dams in Iowa

Iowa has 260 grade stabilization dams. Grade stabilization dams prevent erosion by reducing the slope and velocity of water flowing through a channel.

#	Dam	County	Height (ft)	Hazard	Condition	Year
1	Langenfeld - Heiden Dam	Crawford	44	Low	Not assessed	2000
2	Ramsey Dam	Harrison	43	Low	Not assessed	2000
3	Maurer Dam	O'Brien	43	Low	Not assessed	2000
4	Crawford Co Roadgrade Dam 34-84-39	Crawford	41	Low	Not assessed	2002
5	Soap Creek Watershed Site 26-55	Davis	40	Low	Not assessed	2007
6	Louisa County Raodgrade Dam 36-73-3	Louisa	40	Low	Not assessed	2002
7	Jasper County Roadgrade Dam 20-81-20	Jasper	39	Low	Not assessed	2002
8	Nowak Dam	Harrison	38	Low	Not assessed	2001
9	Jasper County Roadgrade Dam 15-81-20	Jasper	38	Low	Not assessed	2005
10	Behrendt Dam	Monona	38	Low	Not assessed	2014
11	Carbaugh Dam	Montgomery	38	Low	Not assessed	2023
12	Woodbury County Road Dam 8-87-44	Woodbury	38	Low	Not assessed	2001
13	Blanchard Dam	Lee	37	Low	Not assessed	2006
14	Jar Farms	Montgomery	37	Low	Not assessed	2001
15	Arlen Meyer Dam	Page	37	Low	Not assessed	2023
16	Srite Dam	Page	37	Low	Not assessed	2023
17	Ken Southworth Jr. Dam	Dubuque	36	Low	Not assessed	2014
18	Hopp Dam (upper Site)	Mills	36	Low	Not assessed	2005
19	Legacy Farms Dam	Montgomery	36	Low	Not assessed	2023
20	Cynthia Schlapia Dam	Ringgold	36	Low	Not assessed	2016
21	Twelve Mile Creek Watershed Site 62-5	Union	36	Low	Not assessed	2003
22	Washington Co Road Dam 3-74-7	Washington	36	Low	Not assessed	2002
23	Buckmaster Dam	Allamakee	35	Low	Not assessed	1967
24	Troublesome Creek Watershed Site 78-4	Cass	35	Low	Not assessed	1999
25	Tim Lau Site 2	Clarke	35	Low	Not assessed	2016
26	Jarrett Dam	Des Moines	35	Low	Not assessed	2023
27	Burg Dam	Emmet	35	Low	Not assessed	2000
28	Lautner Dam	Greene	35	Low	Not assessed	2004
29	Ls Dennis Lindgren	Ida	35	Low	Not assessed	1995
30	Arrowhead Investments Dam	Madison	35	Low	Not assessed	2020
31	Deitchler Dam	Mills	35	Low	Not assessed	2020
32	Wenger Dam	Washington	35	Low	Not assessed	2005
33	Mark Maeder Dam	Adair	34	Low	Not assessed	2020
34	Troublesome Creek Watershed Site 85-2	Audubon	34	Low	Not assessed	2003
35	Ls Janet Lindgren	Ida	34	Low	Not assessed	1998
36	Rocky Branch Creek, Site Mike Taylor Dam	Madison	34	Low	Not assessed	2016
37	Speck Dam	Mills	34	Low	Not assessed	2004
38	Waubonsie Creek Watershed Site M-3	Mills	34	Low	Not assessed	1999
39	Jackson Dam	Montgomery	34	Low	Not assessed	2022
40	Hallquist Dam	Montgomery	34	Low	Not assessed	2022
41	Jon Bix Dam	Page	34	Low	Not assessed	2023
42	Stimson Farms Dam	Page	34	Low	Not assessed	2021
43	David Downey Dam	Union	34	Low	Not assessed	2013
44	Drake Dam	Adams	33	Low	Not assessed	2022
45	Weppler Dam	Cass	33	Low	Not assessed	2023
46	Buck Dam	Crawford	33	Low	Not assessed	2000
47	Millard Dam	Davis	33	Low	Not assessed	2002
48	Edward Schnurr Dam	Decatur	33	Low	Not assessed	2019
49	Schulte Dam	Lee	33	Low	Not assessed	2000
50	Lehr Dam	Lucas	33	Low	Not assessed	2006
51	Rasmussen Dam	Madison	33	Low	Not assessed	2020
52	Lange Dam	Madison	33	Low	Not assessed	2021
53	Dtl Farms LLC Dam	Madison	33	Low	Not assessed	2020
54	Angran Dam	Monroe	33	Low	Not assessed	2001
55	Lake Miami Sediment Basin - Middle Site	Monroe	33	Low	Not assessed	2000
56	Fisher Dam	Montgomery	33	Low	Not assessed	2024
57	Neva Anderson Trust Dam	Montgomery	33	Low	Not assessed	2021
58	Turner Dam	Page	33	Low	Not assessed	2024
59	Mather Dam	Page	33	Low	Not assessed	2012
60	Tim Temeyer Dam	Pottawattamie	33	Low	Not assessed	2020
61	Clint Means Dam	Taylor	33	Low	Not assessed	2021
62	Cheers Dam	Union	33	Low	Not assessed	2005
63	Betty Beaman	Adair	32	Low	Not assessed	2014
64	Turkey Creek Watershed Site 62-7	Cass	32	Low	Not assessed	2002
65	Tim Lau Site 1	Clarke	32	Low	Not assessed	2016
66	Greg Gilbert Dam	Clarke	32	Low	Not assessed	2019
67	Patterson Dam	Clarke	32	Low	Not assessed	2018
68	Frank Riley Dam	Clarke	32	Low	Not assessed	2017
69	Adam Dam	Jefferson	32	Low	Not assessed	2017
70	Brad Wiley Dam	Madison	32	Low	Not assessed	2014
71	Zach Anderson Dam	Montgomery	32	Low	Not assessed	2024
72	Robinette Dam	Montgomery	32	Low	Not assessed	2013
73	Hayes Dam	Page	32	Low	Not assessed	2012
74	David Loutzenhiser Dam	Ringgold	32	Low	Not assessed	2021
75	Matt Brown Dam	Union	32	Low	Not assessed	2019
76	Carl Kirkland Dam	Union	32	Low	Not assessed	2014
77	Mohr & Sharp Dam	Van Buren	32	Low	Not assessed	2001
78	Ls Miller 4-3375	Woodbury	32	Low	Not assessed	1960
79	Akers Farms Dam	Adair	31	Low	Not assessed	2016
80	Merrill Dorland Dam	Clarke	31	Low	Not assessed	2014
81	Rhoten Dam	Dallas	31	Low	Not assessed	2003
82	Kopecky Dam	Fremont	31	Low	Not assessed	2005
83	Darbyshire Dam	Henry	31	Low	Not assessed	2009
84	Montie L Hammond Estate Dam	Jasper	31	Low	Not assessed	2014
85	William Ory Dam	Madison	31	Low	Not assessed	2018
86	Johnson Dam	Montgomery	31	Low	Not assessed	2024
87	Shipley Dam	Montgomery	31	Low	Not assessed	2023
88	Twelve Mile Creek Watershed Site 36	Union	31	Low	Not assessed	2003
89	Washington Co Road Dam 26-74-9	Washington	31	Low	Not assessed	2005
90	Turkey Creek Watershed Site 58d	Cass	30	Low	Not assessed	2004
91	Mcintyre Dam	Decatur	30	Low	Not assessed	2013
92	Hopp Dam (lower Site)	Mills	30	Low	Not assessed	2005
93	Duer Dam	Monroe	30	Low	Not assessed	2000
94	Kamerick Road Structure	Monroe	30	Low	Not assessed	2001
95	Davis Dam	Monroe	30	Low	Not assessed	2004
96	Ammons Roadgrade Structure	Monroe	30	Low	Not assessed	2004
97	Walker Dam	Montgomery	30	Low	Not assessed	2005
98	Gray Dam	Page	30	Low	Not assessed	2021
99	Matthew Brown	Union	30	Low	Not assessed	2018
100	Beinhart Dam	Washington	30	Low	Not assessed	2023

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