Canyon Lake Dam is an earth dam located in Parker County, Texas, built in 1965. It carries a High hazard potential classification and has a unsatisfactory condition assessment.
Dam profile
NID height · 42 ft42 ft tall and 520 ft long, taller than 88% 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 Canyon Lake Dam
The primary purpose of Canyon Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. It impounds the Rufe Evans Hollow near Annetta South.
The dam stands 42 feet tall and stretches 520 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 387 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1965, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated unsatisfactory, indicating serious safety deficiencies exist that require immediate attention or remedial action. Notably, no emergency action plan is currently on file for this high-hazard dam. The most recent inspection on record was 03/08/2022.
At 42 feet, this dam is taller than 88% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Texas dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Texas |
| County | Parker |
| Nearest City | Annetta South |
| River/Stream | Rufe Evans Hollow |
| Coordinates | 32.68039, -97.66580 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 42 ft |
| Dam Height | 42 ft |
| Dam Length | 520 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 387 acre-ft |
| Max Storage | 387 acre-ft |
| Normal Storage | 152 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 4,960 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner Type | Not Listed |
| Hazard Classification | High |
| Condition Assessment | Unsatisfactory |
| Last Inspection | 03/08/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | TX04940 |
| Federal ID | TX04940 |
| More Info | State Dam Safety Program |