Pond 3 is an earth dam located in San Joaquin County, California. It carries a High hazard potential classification.
Dam profile
NID height · 80 ft80 ft tall and 900 ft long, taller than 97% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Pond 3
Pond 3 is a dam in San Joaquin, California. The dam is owned by Knife River (private).
The dam stands 80 feet tall and stretches 900 feet across, and has a maximum storage capacity of 2,168 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. Notably, no emergency action plan is currently on file for this high-hazard dam.
At 80 feet, this dam is taller than 97% of all dams in the United States.
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 California 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 | California |
| County | San Joaquin |
| Nearest City | Vernalis |
| Coordinates | 37.61222, -121.32889 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 80 ft |
| Dam Height | 80 ft |
| Dam Length | 900 ft |
Storage & Hydraulics
| NID Storage | 2,168 acre-ft |
| Max Storage | 2,168 acre-ft |
Ownership & Safety
| Purpose | Other |
| Owner | Knife River |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA01578 |
| Federal ID | CA01578 |
| More Info | State Dam Safety Program |