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