Island Lake
Low HazardFair ConditionEmergency Action Plan: Not Required
Location
| State | Colorado |
| County | Boulder |
| Nearest City | BOULDER |
| River/Stream | NORTH BOULDER CREEK-TR |
| Coordinates | 40.02948, -105.59130 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 23 ft |
| Dam Height | 18 ft |
| Dam Length | 600 ft |
| Year Completed | 1890 (136 years old) |
Storage & Hydraulics
| NID Storage | 386 acre-ft |
| Max Storage | 386 acre-ft |
| Normal Storage | 334 acre-ft |
| Surface Area | 35 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 400 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | CITY OF BOULDER (CLARK, KEVIN) |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 09/06/2017 |
| Emergency Action Plan | Not Required |