Dyer
High HazardFair ConditionEmergency Action Plan: Yes
Location
| County | Alameda |
| Nearest City | Livermore |
| Coordinates | 37.75980, -121.67400 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 1,850 ft |
| Year Completed | 2011 (15 years old) |
Storage & Hydraulics
| NID Storage | 525 acre-ft |
| Max Storage | 525 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | California Department of Water Resources |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 11/18/2025 |
| Emergency Action Plan | Yes |