Thompson Lake Dam
Thompson Lake Dam is an earth dam located in Frio County, Texas, built in 1964. It carries a Low hazard potential classification.
About Thompson Lake Dam
The primary purpose of Thompson Lake Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Lazy T Cattle Company (private). It impounds the Martin Branch.
The dam stands 13 feet tall and stretches 1,450 feet across, creates a reservoir covering 28 acres, and has a maximum storage capacity of 520 acre-feet. Completed in 1964, the structure is well into its service life at over 50 years 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.
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Location
| State | Texas |
| County | Frio |
| River/Stream | Martin Branch |
| Coordinates | 28.66576, -99.10355 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 1,450 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 520 acre-ft |
| Max Storage | 520 acre-ft |
| Normal Storage | 90 acre-ft |
| Surface Area | 28 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Water Supply |
| Owner | LAZY T CATTLE COMPANY |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX01718 |
| Federal ID | TX01718 |
| More Info | State Dam Safety Program |