O Connor Dam is an earth dam located in Johnson County, Texas. It carries a High hazard potential classification.
Dam profile
NID height · 12 ft12 ft tall and 1,300 ft long. 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 O Connor Dam
The primary purpose of O Connor Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lloyd Foster (private). It impounds the Tr-village Creek near Joshua.
The dam stands 12 feet tall and stretches 1,300 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 28 acre-feet, and collects water from a drainage area of 0 square miles.
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. The most recent inspection on record was 10/10/2023.
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-village Creek |
| Coordinates | 32.47493, -97.36426 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 1,300 ft |
Storage & Hydraulics
| NID Storage | 28 acre-ft |
| Max Storage | 28 acre-ft |
| Normal Storage | 23 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 2 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Lloyd Foster |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not assessed |
| Last Inspection | 10/10/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | TX09559 |
| Federal ID | TX09559 |
| More Info | State Dam Safety Program |