Grasmere East Dam

Significant HazardPoor ConditionEmergency Action Plan: Not Required

Location

StateIdaho
CountyOwyhee
Nearest CityHIGHWAY 51
River/StreamRATTLESNAKE CREEK MARYS CREEK
Coordinates42.34850, -115.89610

Physical Characteristics

NID Height11 ft
Dam Height11 ft
Dam Length4,000 ft

Storage & Hydraulics

NID Storage452 acre-ft
Normal Storage452 acre-ft
Surface Area152 acres
Drainage Area1 sq mi
Max Discharge58 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection08/27/2020
Emergency Action PlanNot Required

Identifiers

NID IDID00516
Federal IDID00516
More InfoState Dam Safety Program

Nearby Dams

Grasmere South Dike 0.4 mi Low Grasmere Middle Dam 0.7 mi Low Grasmere North Dam 1.2 mi Significant Strickland 8.0 mi Low Payne Creek 11.8 mi Low Little Blue Creek 12.2 mi Significant Alder 14.3 mi Low Squaw Creek 14.6 mi High Big Blue Creek 14.9 mi Significant