Oligarchy #1
Significant HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Colorado |
| County | Boulder |
| Nearest City | LONGMONT |
| River/Stream | ST. VRAIN CREEK-OS |
| Coordinates | 40.19836, -105.19178 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 29 ft |
| Dam Length | 1,040 ft |
| Year Completed | 1889 (137 years old) |
Storage & Hydraulics
| NID Storage | 2,161 acre-ft |
| Max Storage | 2,161 acre-ft |
| Normal Storage | 1,737 acre-ft |
| Surface Area | 97 acres |
| Max Discharge | 1,580 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | OLIGARCHY RESERVOIR COMPANY (TIPTON, PRESIDENT, NE |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/10/2022 |
| Emergency Action Plan | Yes |