Burkhalter #2 Reservoir Report
Last Updated: December 14, 2025
Burkhalter #2 is a privately owned irrigation dam located in Orenco, Oregon, along the Tualatin River.
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Summary
Completed in 1952, this earth dam stands at 12 feet high and has a storage capacity of 67 acre-feet, serving the primary purpose of irrigation. The dam is regulated and permitted by the Oregon Water Resources Department, ensuring that it undergoes regular inspections and enforcement measures to maintain its integrity.
With a significant hazard potential, Burkhalter #2 has a spillway type and outlet gates in place, as well as a maximum discharge of 210 cubic feet per second. The dam spans a length of 2500 feet and covers a surface area of 20 acres, impacting a drainage area of 0.08 square miles. Despite not having a condition assessment rating, the dam's inspection frequency is set at 3 years to monitor its safety and performance, with the last inspection conducted in November 2019.
As a crucial component of the local water resource infrastructure, Burkhalter #2 plays a vital role in supporting agricultural activities in the area. Its location, design, and operational history make it a key asset for water management along the Tualatin River, emphasizing the importance of maintaining and monitoring the dam to ensure its continued functionality and safety for the surrounding community and environment.
Year Completed |
1952 |
Dam Length |
2500 |
Dam Height |
12 |
River Or Stream |
TUALATIN RIVER, TRIB TO (OFFST |
Primary Dam Type |
Earth |
Surface Area |
20 |
Hydraulic Height |
8 |
Drainage Area |
0.08 |
Nid Storage |
67 |
Structural Height |
15 |
Outlet Gates |
Slide (sluice gate) |
Hazard Potential |
Significant |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Tualatin River Near Dilley
|
1130cfs |
Fanno Creek At Durham
|
36cfs |
Fanno Creek At 56th Ave
|
3cfs |
Willamette River At Newberg
|
52600cfs |
East Fork Dairy Creek Near Meacham Corner
|
21cfs |
Tryon Creek Blw Nettle Creek
|
11cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Burkhalter #2