H and K Lake Dam is an earth dam located in Bandera County, Texas, built in 1964. It carries a High hazard potential classification.
Dam profile
NID height · 35 ft35 ft tall and 534 ft long, taller than 80% 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 H and K Lake Dam
The primary purpose of H and K Lake 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 Mason Fork LLC (private). It impounds the Tr-mason Creek near Bandera.
The dam stands 35 feet tall and stretches 534 feet across, creates a reservoir covering 9 acres, and has a maximum storage capacity of 140 acre-feet. Completed in 1964, 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. Notably, no emergency action plan is currently on file for this high-hazard dam.
At 35 feet, this dam is taller than 80% 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 | Bandera |
| Nearest City | Bandera |
| River/Stream | Tr-mason Creek |
| Coordinates | 29.79644, -99.04178 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 534 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 140 acre-ft |
| Max Storage | 140 acre-ft |
| Normal Storage | 106 acre-ft |
| Surface Area | 9 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Mason Fork LLC |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | TX04616 |
| Federal ID | TX04616 |
| More Info | State Dam Safety Program |