Rogers - Joseph Reservoir

Rogers - Joseph Reservoir is an earth dam located in Clackamas County, Oregon, built in 1971. It carries a Significant hazard potential classification.

About Rogers - Joseph Reservoir

The primary purpose of Rogers - Joseph Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Michael P. Warn (private). It impounds the Unnamed near Wilsonville.

The dam stands 31 feet tall and stretches 255 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 40 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1971, the structure is well into its service life at over 50 years old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 10/22/2020.

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Significant HazardNot Rated ConditionEmergency Action Plan: No

Location

StateOregon
CountyClackamas
Nearest CityWilsonville
River/StreamUnnamed
Coordinates45.26583, -122.85669

Physical Characteristics

Dam TypeEarth
NID Height31 ft
Dam Height31 ft
Dam Length255 ft
Year Completed1971 (55 years old)

Storage & Hydraulics

NID Storage40 acre-ft
Max Storage40 acre-ft
Normal Storage36 acre-ft
Surface Area2 acres
Drainage Area0 sq mi
Max Discharge100 cfs

Ownership & Safety

PurposeIrrigation
OwnerMICHAEL P. WARN
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentNot Rated
Last Inspection10/22/2020
Emergency Action PlanNo

Identifiers

NID IDOR00492
Federal IDOR00492
More InfoState Dam Safety Program

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