Gregory Lake

Gregory Lake is an earth dam located in Municipality of Anchorage, Alaska. It carries a Low hazard potential classification.

About Gregory Lake

The primary purpose of Gregory Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Usaf Pacaf (federal). It impounds the Six Mile Creek near Elmendorf Afb.

The dam stands 16 feet tall and stretches 1,848 feet across, creates a reservoir covering 745 acres, has a maximum storage capacity of 375 acre-feet, and collects water from a drainage area of 6 square miles.

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. The most recent inspection on record was 10/07/2022.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

Low HazardNot Available ConditionEmergency Action Plan: Not Required

Location

StateAlaska
CountyMunicipality of Anchorage
Nearest CityElmendorf Afb
River/StreamSix Mile Creek
Coordinates61.28833, -149.80833

Physical Characteristics

Dam TypeEarth
NID Height16 ft
Dam Height16 ft
Dam Length1,848 ft

Storage & Hydraulics

NID Storage375 acre-ft
Max Storage375 acre-ft
Normal Storage350 acre-ft
Surface Area745 acres
Drainage Area6 sq mi
Max Discharge300 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerUSAF PACAF
Owner TypeFederal
Hazard ClassificationLow
Condition AssessmentNot Available
Last Inspection10/07/2022
Emergency Action PlanNot Required

Identifiers

NID IDAK00036
Federal IDAK00036
More InfoState Dam Safety Program

Nearby Dams