Cow Hill Tank Dam is an earth dam located in Zavala County, Texas, built in 1971. It carries a Low hazard potential classification.
Dam profile
NID height · 11 ft11 ft tall and 1,500 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 Cow Hill Tank Dam
The primary purpose of Cow Hill Tank Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Ed Cassin Jr (private). It impounds the Tr-gallina Slough.
The dam stands 11 feet tall and stretches 1,500 feet across, creates a reservoir covering 18 acres, and has a maximum storage capacity of 126 acre-feet. Completed in 1971, 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 | Zavala |
| River/Stream | Tr-gallina Slough |
| Coordinates | 28.91167, -99.69000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 1,500 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 126 acre-ft |
| Max Storage | 126 acre-ft |
| Normal Storage | 54 acre-ft |
| Surface Area | 18 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Ed Cassin Jr |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX05581 |
| Federal ID | TX05581 |
| More Info | State Dam Safety Program |