Llano Tank Dam is an earth dam located in Dimmit County, Texas, built in 1974. It carries a Low hazard potential classification.
Dam profile
NID height · 15 ft15 ft tall and 1,190 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 Llano Tank Dam
Llano Tank Dam is a dam in Dimmit, Texas. The dam is owned by Briscoe Ranch Inc (private). It impounds the Tr-bonito Creek.
The dam stands 15 feet tall and stretches 1,190 feet across, creates a reservoir covering 19 acres, and has a maximum storage capacity of 225 acre-feet. Completed in 1974, 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 | Dimmit |
| River/Stream | Tr-bonito Creek |
| Coordinates | 28.21129, -99.90131 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 1,190 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 225 acre-ft |
| Max Storage | 225 acre-ft |
| Normal Storage | 70 acre-ft |
| Surface Area | 19 acres |
| Spillway Type | None |
Ownership & Safety
| Owner | Briscoe Ranch Inc |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX05609 |
| Federal ID | TX05609 |
| More Info | State Dam Safety Program |