Thompson Lake Dam is an earth dam located in McLennan County, Texas, built in 1975. It carries a Low hazard potential classification.
Dam profile
NID height · 31 ft31 ft tall and 528 ft long, taller than 72% of U.S. dams with a recorded height. 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 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 Thompson Properties (private). It impounds the Tr-north Bosque River.
The dam stands 31 feet tall and stretches 528 feet across, creates a reservoir covering 12 acres, and has a maximum storage capacity of 171 acre-feet. Completed in 1975, 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 | McLennan |
| River/Stream | Tr-north Bosque River |
| Coordinates | 31.65877, -97.35983 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 528 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 171 acre-ft |
| Max Storage | 171 acre-ft |
| Normal Storage | 132 acre-ft |
| Surface Area | 12 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Thompson Properties |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX05085 |
| Federal ID | TX05085 |
| More Info | State Dam Safety Program |