Upper Ellison Lake Dam
Upper Ellison Lake Dam is an earth dam located in Starr County, Texas, built in 1957. It carries a Low hazard potential classification.
About Upper Ellison Lake Dam
The primary purpose of Upper Ellison Lake Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Tg Ellison (private). It impounds the Tr-rio Grande.
The dam stands 10 feet tall and stretches 1,390 feet across, creates a reservoir covering 12 acres, and has a maximum storage capacity of 148 acre-feet. Completed in 1957, 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 | Starr |
| River/Stream | Tr-rio Grande |
| Coordinates | 26.46252, -98.86014 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 1,390 ft |
| Year Completed | 1957 (69 years old) |
Storage & Hydraulics
| NID Storage | 148 acre-ft |
| Max Storage | 148 acre-ft |
| Normal Storage | 29 acre-ft |
| Surface Area | 12 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | TG ELLISON |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX01700 |
| Federal ID | TX01700 |
| More Info | State Dam Safety Program |