Llano City Lake Dam is a gravity dam located in Llano County, Texas, built in 1908. It carries a Low hazard potential classification.
Dam profile
NID height · 11 ft11 ft tall and 756 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Llano City Lake Dam
The primary purpose of Llano City 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 City of Llano (local government). It impounds the Llano River near Llano.
The dam stands 11 feet tall and stretches 756 feet across, creates a reservoir covering 85 acres, and has a maximum storage capacity of 383 acre-feet. Completed in 1908, the structure is over a century 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. The most recent inspection on record was 02/11/2004. That was over 22 years ago.
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Location
| State | Texas |
| County | Llano |
| Nearest City | Llano |
| River/Stream | Llano River |
| Coordinates | 30.75333, -98.67667 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 756 ft |
| Year Completed | 1908 (118 years old) |
Storage & Hydraulics
| NID Storage | 383 acre-ft |
| Max Storage | 383 acre-ft |
| Normal Storage | 383 acre-ft |
| Surface Area | 85 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Llano |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 02/11/2004 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX03905 |
| Federal ID | TX03905 |
| More Info | State Dam Safety Program |