Isatkuag Lagoon Dam is an earth dam located in North Slope Borough, Alaska, built in 1977. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 16 ft16 ft tall and 2,000 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Isatkuag Lagoon Dam
The primary purpose of Isatkuag Lagoon 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 North Slope Borough (local government). It impounds the Isatkoak Creek near Barrow.
The dam stands 16 feet tall and stretches 2,000 feet across, creates a reservoir covering 128 acres, has a maximum storage capacity of 1,140 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1977, the structure is 49 years old.
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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 09/24/2015. That was over 11 years ago.
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Location
| State | Alaska |
| County | North Slope Borough |
| Nearest City | Barrow |
| River/Stream | Isatkoak Creek |
| Coordinates | 71.26667, -156.75000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 2,000 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 1,140 acre-ft |
| Max Storage | 1,140 acre-ft |
| Normal Storage | 1,140 acre-ft |
| Surface Area | 128 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 374 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | North Slope Borough |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 09/24/2015 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | AK00051 |
| Federal ID | AK00051 |
| More Info | State Dam Safety Program |