Conrad Jim is a privately owned dam located in Marshall County, Oklahoma, near the city of Lebanon.
Wind
Humidity
Built in 1974, the primary purpose of this earth dam is flood risk reduction along the Little Hauani Creek. Standing at a height of 20 feet and with a hydraulic height of 15 feet, Conrad Jim has a storage capacity of 80 acre-feet and a normal storage level of 50 acre-feet.
With a low hazard potential and a very high risk assessment rating, this dam is regulated, permitted, inspected, and enforced by the Oklahoma Water Resources Board (OWRB). The structure features a controlled spillway, one valve outlet gate, and a stone core foundation on soil. Despite being last inspected in 2010, Conrad Jim is considered to be in "not rated" condition, highlighting the need for further assessment and risk management measures to ensure its continued safety and functionality for flood control purposes.
For water resource and climate enthusiasts, Conrad Jim represents a vital piece of infrastructure in Oklahoma's flood risk reduction strategy. Its location, design, and regulatory oversight by the OWRB make it a key asset in protecting surrounding areas from potential flooding events. As discussions around climate change and water resource management continue to evolve, the maintenance and upkeep of structures like Conrad Jim will be essential in safeguarding communities and ecosystems against the impacts of extreme weather events.
Year Completed |
1974 |
Dam Length |
300 |
Dam Height |
20 |
River Or Stream |
LITTLE HAUANI CR |
Primary Dam Type |
Earth |
Surface Area |
3 |
Hydraulic Height |
15 |
Nid Storage |
80 |
Structural Height |
20 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
20 |