Sandy Farms No. 1-A Reservoir Report

Last Updated: December 13, 2025

Sandy Farms No.


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Summary

1-A is a privately owned irrigation dam located in Clackamas, Oregon, along a tributary to Tickle Creek. Built in 1977, this earth dam stands at a height of 33 feet and has a storage capacity of 49 acre-feet. With a surface area of 6 acres and a drainage area of 0.3 square miles, this dam serves the primary purpose of irrigation for the surrounding agricultural lands.

Managed by the Oregon Water Resources Department, Sandy Farms No. 1-A has a significant hazard potential and undergoes inspections every three years to ensure its structural integrity. While its condition assessment is currently not rated, the dam has not been modified since its completion. Its emergency action plan status, risk assessment, and risk management measures are not specified in the available data. The dam is not associated with the US Army Corps of Engineers, highlighting its private ownership and regulation.

For water resource and climate enthusiasts, Sandy Farms No. 1-A presents an interesting case study of a privately owned irrigation dam in Oregon. The dam's location, design details, and regulatory framework offer valuable insights into the management of water resources in the region. As climate change continues to impact water availability and usage, understanding the role of dams like Sandy Farms No. 1-A becomes increasingly important for sustainable water management practices.

Year Completed

1977

Dam Length

710

Dam Height

33

River Or Stream

TRIB TO TICKLE CREEK

Primary Dam Type

Earth

Surface Area

6

Hydraulic Height

27

Drainage Area

0.3

Nid Storage

49

Structural Height

33

Hazard Potential

Significant

Nid Height

33
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.