Pilarcitos
High HazardPoor ConditionEmergency Action Plan: Yes
Location
| County | San Mateo |
| Nearest City | Half Moon Bay |
| River/Stream | Pilarcitos Crk |
| Coordinates | 37.54720, -122.42330 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 103 ft |
| Dam Height | 103 ft |
| Dam Length | 520 ft |
| Year Completed | 1866 (160 years old) |
Storage & Hydraulics
| NID Storage | 3,100 acre-ft |
| Max Storage | 3,100 acre-ft |
| Surface Area | 109 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 1,244 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City and County of San Francisco |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 04/29/2025 |
| Emergency Action Plan | Yes |