Green Peter Dam

High HazardNot Available ConditionEmergency Action Plan: Yes

Location

StateOregon
CountyLinn
Nearest CitySWEETHOME
River/StreamMIDDLE SANTIAM RIVER
Coordinates44.45006, -122.54885

Physical Characteristics

Dam TypeGravity
NID Height378 ft
Dam Height320 ft
Dam Length1,517 ft
Year Completed1967 (59 years old)

Storage & Hydraulics

NID Storage430,000 acre-ft
Max Storage430,000 acre-ft
Normal Storage160,000 acre-ft
Surface Area3,720 acres
Drainage Area277 sq mi
Max Discharge110,000 cfs
Spillway TypeControlled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerUSACE - Portland District
Owner TypeFederal
Hazard ClassificationHigh
Condition AssessmentNot Available
Last Inspection06/11/2025
Emergency Action PlanYes

Identifiers

NID IDOR00010
Federal IDOR00010
More InfoState Dam Safety Program

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