Located in Bandera, Texas, the Garrison Ranch Lake Dam stands as a testament to human ingenuity and engineering prowess.
Wind
Humidity
Completed in 1957, this private-owned structure regulates the flow of the West Prong Medina River, providing essential water storage for the surrounding area. With a height of 38 feet and a length of 850 feet, this earth dam boasts a storage capacity of 680 acre-feet, offering a lifeline for local water resources.
The dam's primary purpose extends beyond water storage, serving as a vital component in managing the area's hydrology. With a spillway width of 153 feet and a maximum discharge capacity of 79,000 cubic feet per second, the Garrison Ranch Lake Dam is equipped to handle significant water flow during periods of high rainfall. The dam's fair condition assessment in 2016 reflects diligent maintenance efforts, ensuring its continued functionality and safety for the community.
Furthermore, the dam's moderate risk assessment level underscores the need for ongoing monitoring and risk management measures. Despite its robust design and regulatory oversight from the Texas Commission on Environmental Quality (TCEQ), the Garrison Ranch Lake Dam remains a critical infrastructure asset that warrants attention and proactive maintenance to safeguard water resources and climate resilience in the region.
Year Completed |
1957 |
Dam Length |
850 |
Dam Height |
38 |
River Or Stream |
WEST PRONG MEDINA RIVER |
Primary Dam Type |
Earth |
Surface Area |
14.8 |
Hydraulic Height |
38 |
Drainage Area |
42.2 |
Nid Storage |
680 |
Structural Height |
38 |
Outlet Gates |
Uncontrolled - 2 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
38 |