Allison South Lake Dam is an earth dam located in Navarro County, Texas, built in 1960. It carries a Low hazard potential classification.
Dam profile
NID height · 27 ft27 ft tall and 1,005 ft long, taller than 59% 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 Allison South Lake Dam
The primary purpose of Allison South Lake Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Fred Allison (private). It impounds the Tr-briar Creek.
The dam stands 27 feet tall and stretches 1,005 feet across, creates a reservoir covering 8 acres, and has a maximum storage capacity of 115 acre-feet. Completed in 1960, 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 | Navarro |
| River/Stream | Tr-briar Creek |
| Coordinates | 32.12591, -96.49571 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 1,005 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 115 acre-ft |
| Max Storage | 115 acre-ft |
| Normal Storage | 74 acre-ft |
| Surface Area | 8 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Fred Allison |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX05155 |
| Federal ID | TX05155 |
| More Info | State Dam Safety Program |