Van Raden

Van Raden is an earth dam located in Multnomah County, Oregon, built in 1975. It carries a High hazard potential classification and has a fair condition assessment.

About Van Raden

The primary purpose of Van Raden is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Chris Van Raden (private). It impounds the Rock Creek near Orenco.

The dam stands 27 feet tall and stretches 320 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 115 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1975, the structure is well into its service life at over 50 years old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 09/01/2020.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Oregon dam safety program can provide more specific information about emergency planning for this structure.

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

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateOregon
CountyMultnomah
Nearest CityOrenco
River/StreamRock Creek
Coordinates45.62875, -122.90798

Physical Characteristics

Dam TypeEarth
NID Height27 ft
Dam Height27 ft
Dam Length320 ft
Year Completed1975 (51 years old)

Storage & Hydraulics

NID Storage115 acre-ft
Max Storage115 acre-ft
Normal Storage96 acre-ft
Surface Area12 acres
Drainage Area2 sq mi
Max Discharge750 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerCHRIS VAN RADEN
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection09/01/2020
Emergency Action PlanYes

Identifiers

NID IDOR00105
Federal IDOR00105
More InfoState Dam Safety Program

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