A F K Hatchery Dam

A F K Hatchery Dam is a concrete dam located in Chugach Census Area, Alaska, built in 1977. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About A F K Hatchery Dam

The primary purpose of A F K Hatchery 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 Chenega Corporation (private). It impounds the Larsen Creek near San Juan Cannery.

The dam stands 32 feet tall and stretches 662 feet across, creates a reservoir covering 30 acres, has a maximum storage capacity of 533 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1977, the structure is 49 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 07/11/2018.

At 32 feet, this dam is taller than 76% of dams nationwide.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateAlaska
CountyChugach Census Area
Nearest CitySan Juan Cannery
River/StreamLarsen Creek
Coordinates60.04833, -148.07666

Physical Characteristics

Dam TypeConcrete
NID Height32 ft
Dam Height32 ft
Dam Length662 ft
Year Completed1977 (49 years old)

Storage & Hydraulics

NID Storage533 acre-ft
Max Storage533 acre-ft
Normal Storage446 acre-ft
Surface Area30 acres
Drainage Area0 sq mi
Max Discharge1,282 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeWater Supply
OwnerCHENEGA CORPORATION
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection07/11/2018
Emergency Action PlanNot Required

Identifiers

NID IDAK00313
Federal IDAK00313
More InfoState Dam Safety Program