Hall Mill Dam
Hall Mill Dam is an earth dam located in Riverside County, California, built in 1949. It carries a High hazard potential classification.
About Hall Mill Dam
Hall Mill Dam is a dam in Riverside, California. The dam is owned by Usda Fs (federal).
The dam stands 40 feet tall and stretches 220 feet across. Completed in 1949, the structure is well-established, with more than 75 years of service.
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 02/26/2020.
At 40 feet, this dam is taller than 87% 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 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 | Riverside |
| Nearest City | 0.1 |
| Coordinates | 33.80418, -116.78086 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 220 ft |
| Year Completed | 1949 (77 years old) |
Ownership & Safety
| Purpose | Other |
| Owner | USDA FS |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Last Inspection | 02/26/2020 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA00768 |
| Federal ID | CA00768 |
| More Info | State Dam Safety Program |