Trigg Lake Dam is an earth dam located in Bastrop County, Texas, built in 1900. It carries a Low hazard potential classification.
Dam profile
NID height · 18 ft18 ft tall and 600 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 Trigg Lake Dam
The primary purpose of Trigg 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 Lonnie Yoast (private). It impounds the Tr-cedar Creek near Smithville.
The dam stands 18 feet tall and stretches 600 feet across, creates a reservoir covering 19 acres, and has a maximum storage capacity of 200 acre-feet. Completed in 1900, 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.
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Location
| State | Texas |
| County | Bastrop |
| Nearest City | Smithville |
| River/Stream | Tr-cedar Creek |
| Coordinates | 30.06649, -97.57424 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 600 ft |
| Year Completed | 1900 (126 years old) |
Storage & Hydraulics
| NID Storage | 200 acre-ft |
| Max Storage | 200 acre-ft |
| Normal Storage | 115 acre-ft |
| Surface Area | 19 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Lonnie Yoast |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX02720 |
| Federal ID | TX02720 |
| More Info | State Dam Safety Program |