Canvasback Lake Dam is an earth dam located in Bexar County, Texas, built in 1911. It carries a Low hazard potential classification.
Dam profile
NID height · 19 ft19 ft tall and 1,200 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Canvasback Lake Dam
The primary purpose of Canvasback Lake Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Bexar Metropolitan Water District;verano Land Group LP (local government). It impounds the Sauz Creek.
The dam stands 19 feet tall and stretches 1,200 feet across, and has a maximum storage capacity of 730 acre-feet. Completed in 1911, the structure is over a century old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 12/07/1983. That was over 42 years ago.
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Location
| State | Texas |
| County | Bexar |
| River/Stream | Sauz Creek |
| Coordinates | 29.29718, -98.50756 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 1,200 ft |
| Year Completed | 1911 (115 years old) |
Storage & Hydraulics
| NID Storage | 730 acre-ft |
| Max Storage | 730 acre-ft |
| Normal Storage | 275 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Bexar Metropolitan Water District;verano Land Group LP |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 12/07/1983 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX01436 |
| Federal ID | TX01436 |
| More Info | State Dam Safety Program |