Olmos Dam, located in San Antonio, Texas, along Olmos Creek, was completed in 1926 by design firm Freese & Nichols.
Wind
Humidity
This gravity dam stands at a height of 58 feet and serves primarily for flood risk reduction purposes. With a storage capacity of 21,970 acre-feet and a drainage area of 32.4 square miles, the dam plays a crucial role in managing water flow and protecting the surrounding areas from potential flooding events.
The dam underwent structural modifications in 2012 to ensure its continued effectiveness and safety. Despite its age, Olmos Dam maintains a satisfactory condition assessment as of April 2021, and regular inspections occur every five years. The dam features a controlled spillway, outlet gates, and a very high risk assessment rating, emphasizing the importance of its proper maintenance and management to safeguard the community and water resources. Olmos Dam stands as a testament to engineering ingenuity and serves as a vital component of the water infrastructure in the region.
Years Modified |
2012 - Structural |
Year Completed |
1926 |
Dam Length |
1941 |
Dam Height |
58 |
River Or Stream |
OLMOS CREEK |
Primary Dam Type |
Gravity |
Hydraulic Height |
58 |
Drainage Area |
32.4 |
Nid Storage |
21970 |
Structural Height |
58 |
Outlet Gates |
Other Controlled - 1, Slide (sluice gate) - 6, Uncontrolled - 1 |
Hazard Potential |
Not Available |
Foundations |
Rock, Soil |
Nid Height |
58 |