Johnson Lake Dam is an earth dam located in Washington County, Texas, built in 1972. It carries a Low hazard potential classification.
Dam profile
NID height · 24 ft24 ft tall. 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 Lake Dam
The primary purpose of Johnson Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Willard Johnson (private). It impounds the Tr-clay Creek.
The dam stands 24 feet tall, and has a maximum storage capacity of 200 acre-feet. 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 | Washington |
| River/Stream | Tr-clay Creek |
| Coordinates | 30.29605, -96.43494 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 22 ft |
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 200 acre-ft |
| Max Storage | 200 acre-ft |
| Normal Storage | 96 acre-ft |
| Spillway Type | None |
Ownership & Safety
| Purpose | Recreation |
| Owner | Willard Johnson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | TX00054 |
| Federal ID | TX00054 |
| More Info | State Dam Safety Program |