Johnson Ranch Dam No 1 is an earth dam located in Donley County, Texas, built in 1972. It carries a Low hazard potential classification.
Dam profile
NID height · 27 ft27 ft tall and 329 ft long, taller than 59% of U.S. dams with a recorded height. 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 Johnson Ranch Dam No 1
The primary purpose of Johnson Ranch Dam No 1 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 Mt Johnson Et Al (private). It impounds the Tr-mcclellan Creek.
The dam stands 27 feet tall and stretches 329 feet across, has a maximum storage capacity of 40 acre-feet, and collects water from a drainage area of 120 square miles. Completed in 1972, 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 | Donley |
| River/Stream | Tr-mcclellan Creek |
| Coordinates | 35.16667, -100.83333 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 26 ft |
| Dam Length | 329 ft |
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 40 acre-ft |
| Max Storage | 40 acre-ft |
| Normal Storage | 26 acre-ft |
| Drainage Area | 120 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Mt Johnson Et Al |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX06684 |
| Federal ID | TX06684 |
| More Info | State Dam Safety Program |