Harden No 1 is a privately owned earth dam located in Le Flore, Oklahoma, specifically in the city of Rock Island.
Wind
Humidity
Completed in 1975, this dam serves the primary purpose of flood risk reduction along the TR-JAMES FORK CREEK. With a height of 42 feet and a storage capacity of 554 acre-feet, Harden No 1 plays a crucial role in managing water resources in the area.
Managed by the OWRB and regulated by the state of Oklahoma, Harden No 1 has a low hazard potential and has not been assessed for condition. The dam features a controlled spillway and a single valve outlet gate. It is inspected every 5 years, with the last inspection taking place in December 2010. Despite its age, Harden No 1 continues to effectively mitigate flood risks and protect the surrounding communities from potential water-related disasters.
The risk assessment for Harden No 1 classifies it as having a very high risk level of 1, indicating the importance of proper maintenance and monitoring. While the dam has not been modified in recent years, it remains a critical piece of infrastructure in managing water resources and climate challenges in the region. As water resource and climate enthusiasts, it is essential to recognize the vital role that structures like Harden No 1 play in safeguarding communities and ecosystems from the impacts of extreme weather events.
Year Completed |
1975 |
Dam Length |
575 |
Dam Height |
42 |
River Or Stream |
TR-JAMES FORK CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
40 |
Nid Storage |
554 |
Structural Height |
42 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
42 |
James Fork Near Hackett
|
32cfs |
Poteau River Near Panama
|
483cfs |
Arkansas River At Ft. Smith
|
21700cfs |
Lee Creek Near Short
|
97cfs |
Poteau River At Cauthron
|
111cfs |
Poteau River At Loving
|
113cfs |