Cottonwood #2 is a historic earth dam located in Mesa, Colorado, along Cottonwood Creek.
Wind
Humidity
Built in 1895 for irrigation purposes, the dam stands at a height of 17 feet and has a storage capacity of 273 acre-feet. With a significant hazard potential and fair condition assessment, the dam has undergone modifications in 1966 to enhance its hydraulic, mechanical, and structural aspects.
Despite its age, Cottonwood #2 continues to serve its primary purpose of irrigation, while also supporting recreation and water supply needs in the area. The dam features an uncontrolled spillway with a width of 125 feet and is equipped with a slide gate for water release. The surrounding landscape, with a surface area of 13 acres, provides a picturesque setting for outdoor activities and wildlife habitat.
As a regulated structure in Colorado, Cottonwood #2 is subject to state inspections, enforcement, and permitting to ensure its safe operation. With a moderate risk assessment rating and a designated emergency action plan, the dam is monitored regularly to mitigate potential risks and protect downstream communities. This historical dam stands as a testament to the importance of water resource management and climate resilience in the region.
Years Modified |
1966 - Hydraulic, 1966 - Mechanical, 1966 - Structural |
Year Completed |
1895 |
Dam Length |
135 |
Dam Height |
17 |
River Or Stream |
COTTONWOOD CREEK |
Primary Dam Type |
Earth |
Surface Area |
13 |
Hydraulic Height |
17 |
Nid Storage |
273 |
Structural Height |
20 |
Outlet Gates |
Slide (sluice gate) - 1 |
Hazard Potential |
Significant |
Foundations |
Rock, Soil |
Nid Height |
20 |