Agate Dam
Agate Dam is a rockfill dam located in Jackson County, Oregon, built in 1965. It carries a High hazard potential classification.
About Agate Dam
The primary purpose of Agate Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Bureau Of Reclamation (federal). It impounds the Dry Creek, Antelope Cr.& Other near White City.
The dam stands 86 feet tall and stretches 3,800 feet across, creates a reservoir covering 216 acres, has a maximum storage capacity of 5,700 acre-feet, and collects water from a drainage area of 14 square miles. Completed in 1965, 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. An emergency action plan is in place for this dam. The most recent inspection on record was 07/26/2022.
At 86 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 Oregon 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 | Oregon |
| County | Jackson |
| Nearest City | White City |
| River/Stream | Dry Creek, Antelope Cr.& Other |
| Coordinates | 42.41530, -122.77330 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 86 ft |
| Dam Height | 77 ft |
| Dam Length | 3,800 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 5,700 acre-ft |
| Max Storage | 5,700 acre-ft |
| Normal Storage | 4,780 acre-ft |
| Surface Area | 216 acres |
| Drainage Area | 14 sq mi |
| Max Discharge | 3,530 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BUREAU OF RECLAMATION |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 07/26/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OR00422 |
| Federal ID | OR00422 |
| More Info | State Dam Safety Program |