Big Lake Dam is an earth dam located in Atascosa County, Texas, built in 1968. It carries a Low hazard potential classification.
Dam profile
NID height · 22 ft22 ft tall and 900 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 Big Lake Dam
The primary purpose of Big 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 Anderson Robinson Inc (private). It impounds the Tr-metate Creek.
The dam stands 22 feet tall and stretches 900 feet across, creates a reservoir covering 26 acres, and has a maximum storage capacity of 352 acre-feet. Completed in 1968, 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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Texas |
| County | Atascosa |
| River/Stream | Tr-metate Creek |
| Coordinates | 28.76298, -98.35273 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 900 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 352 acre-ft |
| Max Storage | 352 acre-ft |
| Normal Storage | 177 acre-ft |
| Surface Area | 26 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Anderson Robinson Inc |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX03167 |
| Federal ID | TX03167 |
| More Info | State Dam Safety Program |