The Izzak Walton League Dam, located in Ottumwa, Iowa, along the TR-Sugar Creek river, was completed in 1965 for the primary purpose of recreation.
Wind
Humidity
This earth dam, designed by the USDA NRCS, stands at a height of 35 feet and spans 420 feet, with a storage capacity of 191 acre-feet. The dam is owned privately and regulated by the Iowa DNR, with state permitting, inspection, and enforcement in place to ensure its safety and compliance with regulations.
Despite its recreational significance, the Izzak Walton League Dam is classified as having a significant hazard potential and a poor condition assessment. The last inspection in June 2019 highlighted these concerns, prompting a moderate risk assessment rating. While the dam does not have an Emergency Action Plan in place, efforts may be needed to improve its condition and reduce risks associated with its operation. With its beautiful location and potential for water resource management, the future of the Izzak Walton League Dam will likely involve ongoing monitoring and maintenance to ensure its continued safety and functionality for the community.
Year Completed |
1965 |
Dam Length |
420 |
Dam Height |
35 |
River Or Stream |
TR-SUGAR CREEK |
Primary Dam Type |
Earth |
Surface Area |
10.8 |
Drainage Area |
0.39 |
Nid Storage |
191 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
35 |
Des Moines River At Ottumwa
|
1090cfs |
Fox River At Bloomfield
|
7cfs |
North Skunk River Near Sigourney
|
97cfs |
South Skunk River Near Oskaloosa
|
485cfs |
Des Moines River At Keosauqua
|
1800cfs |
Chariton River Near Rathbun
|
15cfs |