Alpine
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| County | Marin |
| Nearest City | Point Reyes Station |
| River/Stream | Lagunitas Creek |
| Coordinates | 37.94080, -122.63870 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 143 ft |
| Dam Height | 143 ft |
| Dam Length | 524 ft |
| Year Completed | 1917 (109 years old) |
Storage & Hydraulics
| NID Storage | 8,892 acre-ft |
| Max Storage | 8,892 acre-ft |
| Surface Area | 224 acres |
| Drainage Area | 10 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | Marin Municipal Water District |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/17/2025 |
| Emergency Action Plan | Yes |