Landgraf R is a privately owned dam located in Texoma Lake, Oklahoma, along the TR-Hauani Creek.
Wind
Humidity
Built in 1960, this earth dam stands at a height of 28 feet and has a length of 415 feet, providing a maximum storage capacity of 81 acre-feet. Despite its low hazard potential, Landgraf R is regulated and inspected by the Oklahoma Water Resources Board, with state jurisdiction and enforcement in place to ensure its safety and compliance.
The dam features a controlled spillway and a single valve outlet gate for water release, with a maximum discharge capacity of 720 cubic feet per second. The risk assessment for Landgraf R indicates a very high risk level (1), prompting the need for heightened risk management measures. However, the condition assessment for the dam is currently marked as "Not Rated," suggesting a need for further evaluation to ensure its structural integrity and safety.
Overall, Landgraf R serves a primary purpose other than flood control, with a surface area of 5 acres and a normal storage capacity of 34 acre-feet. As a significant part of the water resource infrastructure in Marshall County, Oklahoma, this dam plays a crucial role in water management and conservation efforts in the region.
Year Completed |
1960 |
Dam Length |
415 |
Dam Height |
28 |
River Or Stream |
TR-HAUANI CR |
Primary Dam Type |
Earth |
Surface Area |
5 |
Hydraulic Height |
28 |
Nid Storage |
81 |
Structural Height |
28 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |