Roy Tank Dam
Roy Tank Dam is an earth dam located in McMullen County, Texas, built in 1968. It carries a Low hazard potential classification.
About Roy Tank Dam
The primary purpose of Roy Tank 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 Roy Tank Dam (private). It impounds the Tr-elm Creek.
The dam stands 12 feet tall and stretches 660 feet across, creates a reservoir covering 15 acres, and has a maximum storage capacity of 130 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.
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Location
| State | Texas |
| County | McMullen |
| River/Stream | Tr-elm Creek |
| Coordinates | 28.21423, -98.63290 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 660 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 130 acre-ft |
| Max Storage | 130 acre-ft |
| Normal Storage | 54 acre-ft |
| Surface Area | 15 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Water Supply |
| Owner | ROY TANK DAM |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX03027 |
| Federal ID | TX03027 |
| More Info | State Dam Safety Program |