Martin Dam
Martin Dam is an earth dam located in Johnson County, Texas. It carries a High hazard potential classification and has a fair condition assessment.
About Martin Dam
Martin Dam is a dam in Johnson, Texas. The dam is owned by Steven N Martin Md Pa (private). It impounds the Tr-willow Creek near Joshua.
The dam stands 8 feet tall and stretches 580 feet across, creates a reservoir covering 0 acres, and has a maximum storage capacity of 10 acre-feet.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. Notably, no emergency action plan is currently on file for this high-hazard dam. The most recent inspection on record was 12/19/2023.
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 | Johnson |
| Nearest City | Joshua |
| River/Stream | Tr-willow Creek |
| Coordinates | 32.49071, -97.38263 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 580 ft |
Storage & Hydraulics
| NID Storage | 10 acre-ft |
| Max Storage | 10 acre-ft |
| Normal Storage | 7 acre-ft |
| Surface Area | 0 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Owner | STEVEN N MARTIN MD PA |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 12/19/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | TX09558 |
| Federal ID | TX09558 |
| More Info | State Dam Safety Program |