Grace Graham Lake Dam
Grace Graham Lake Dam is an earth dam located in McMullen County, Texas, built in 1954. It carries a Low hazard potential classification.
About Grace Graham Lake Dam
The primary purpose of Grace Graham 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 Grace Graham (private). It impounds the Tr-rockaway Creek.
The dam stands 11 feet tall and stretches 830 feet across, creates a reservoir covering 14 acres, and has a maximum storage capacity of 130 acre-feet. Completed in 1954, 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 | McMullen |
| River/Stream | Tr-rockaway Creek |
| Coordinates | 28.50304, -98.69670 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 830 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 130 acre-ft |
| Max Storage | 130 acre-ft |
| Normal Storage | 45 acre-ft |
| Surface Area | 14 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Water Supply |
| Owner | GRACE GRAHAM |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX03003 |
| Federal ID | TX03003 |
| More Info | State Dam Safety Program |