Grassy Lake Dam

High HazardNot Available ConditionEmergency Action Plan: Yes

Location

StateWyoming
CountyTeton
Nearest CityST ANTHONY, ID
River/StreamGRASSY CREEK
Coordinates44.13040, -110.81850

Physical Characteristics

Dam TypeEarth
NID Height118 ft
Dam Height118 ft
Dam Length1,170 ft
Year Completed1939 (87 years old)

Storage & Hydraulics

NID Storage16,210 acre-ft
Max Storage16,210 acre-ft
Normal Storage15,470 acre-ft
Surface Area318 acres
Drainage Area3 sq mi
Max Discharge1,651 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerBUREAU OF RECLAMATION
Owner TypeFederal
Hazard ClassificationHigh
Condition AssessmentNot Available
Last Inspection07/29/2020
Emergency Action PlanYes

Identifiers

NID IDWY01384
Federal IDWY01384
More InfoState Dam Safety Program

Nearby Dams

Indian Lake 11.8 mi Low Bergman Lake 12.2 mi Low