Long Lake Dam
Low HazardFair ConditionEmergency Action Plan: Not Required
Location
| State | Alaska |
| County | City and Borough of Juneau |
| Nearest City | JUNEAU |
| River/Stream | LONG RIVER |
| Coordinates | 58.16667, -133.73330 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 30 ft |
| Dam Length | 337 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 147,000 acre-ft |
| Max Storage | 147,000 acre-ft |
| Normal Storage | 147,000 acre-ft |
| Surface Area | 1,375 acres |
| Drainage Area | 32 sq mi |
| Max Discharge | 28,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | ALASKA INDUSTRIAL DEVELOPMENT AND EXPORT AUTHORITY |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 08/28/2019 |
| Emergency Action Plan | Not Required |