Grothaus Lake Dam
Grothaus Lake Dam is an earth dam located in Bexar County, Texas, built in 1950. It carries a Low hazard potential classification.
About Grothaus Lake Dam
The primary purpose of Grothaus 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 Fred Grothaus (private). It impounds the Black Hill Branch.
The dam stands 14 feet tall and stretches 997 feet across, and has a maximum storage capacity of 56 acre-feet. Completed in 1950, the structure is well-established, with more than 75 years of service.
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.
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Location
| State | Texas |
| County | Bexar |
| River/Stream | Black Hill Branch |
| Coordinates | 29.26430, -98.71257 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 997 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 56 acre-ft |
| Max Storage | 56 acre-ft |
| Normal Storage | 28 acre-ft |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | FRED GROTHAUS |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX05231 |
| Federal ID | TX05231 |
| More Info | State Dam Safety Program |