Hidden Lake, located in Austin, Texas, is a private reservoir with a primary purpose of irrigation.
Wind
Humidity
Built in 1969, the earth dam stands at 42 feet high and spans 400 feet in length. With a storage capacity of 183 acre-feet, the reservoir covers a surface area of 5.78 acres and has a drainage area of 1.1 square miles. The dam is regulated by the Texas Commission on Environmental Quality (TCEQ) and has undergone structural modifications in 1993.
Despite its modest size, Hidden Lake offers recreational opportunities in addition to its irrigation function. The reservoir is fed by Bull Creek and has a maximum discharge rate of 16,000 cubic feet per second. The spillway, which is uncontrolled and 62 feet wide, helps manage excess water during periods of heavy rainfall. The dam is classified as having a fair condition assessment and a moderate risk level, with inspections taking place every 5 years to ensure its safety and integrity.
The dam at Hidden Lake is a testament to the importance of water resource management in the face of changing climate conditions. As a vital piece of infrastructure in Travis County, this reservoir plays a crucial role in supplying water for agricultural purposes while also providing a space for recreation and enjoyment. With its strategic location and careful regulation by the TCEQ, Hidden Lake stands as a model for sustainable water management practices in the region.
Years Modified |
1993 - Structural |
Year Completed |
1969 |
Dam Length |
400 |
Dam Height |
42 |
River Or Stream |
TR-BULL CREEK |
Primary Dam Type |
Earth |
Surface Area |
5.78 |
Hydraulic Height |
42 |
Drainage Area |
1.1 |
Nid Storage |
183 |
Structural Height |
42 |
Outlet Gates |
Uncontrolled - 2 |
Hazard Potential |
Not Available |
Foundations |
Rock, Soil |
Nid Height |
42 |