Hydaburg Dam
Hydaburg Dam is an other dam located in Prince of Wales-Hyder Census Area, Alaska, built in 1939. It carries a Significant hazard potential classification.
About Hydaburg Dam
The primary purpose of Hydaburg Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Hydaburg (local government). It impounds the Hydaburg River near Hydaburg.
The dam stands 8 feet tall and stretches 85 feet across, and has a maximum storage capacity of 8 acre-feet. Completed in 1939, the structure is well-established, with more than 75 years of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 08/07/2015. That was over 10 years ago.
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Location
| State | Alaska |
| County | Prince of Wales-Hyder Census Area |
| Nearest City | Hydaburg |
| River/Stream | Hydaburg River |
| Coordinates | 55.21833, -132.80000 |
Physical Characteristics
| Dam Type | Other |
| NID Height | 8 ft |
| Dam Length | 85 ft |
| Year Completed | 1939 (87 years old) |
Storage & Hydraulics
| NID Storage | 8 acre-ft |
| Max Storage | 8 acre-ft |
| Normal Storage | 8 acre-ft |
| Max Discharge | 100 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | CITY OF HYDABURG |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Last Inspection | 08/07/2015 |
| Emergency Action Plan | No |
Identifiers
| NID ID | AK00120 |
| Federal ID | AK00120 |
| More Info | State Dam Safety Program |