Bradshaw Reservoir Report

Last Updated: December 5, 2025

Bradshaw, located in Lake Creek, Oregon, is a privately owned dam with a primary purpose of irrigation.


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Summary

Completed in 1966, this earth dam stands at a height of 47 feet and has a storage capacity of 785 acre-feet. It serves to regulate water from Lost Creek, Harrison Creek, and other nearby streams, covering a drainage area of 2.75 square miles.

With a significant hazard potential, Bradshaw is regulated and inspected by the Oregon Water Resources Department. The dam features slide gates for outlet control and has a spillway type not specified in the data. Despite its condition not being rated, inspections are carried out every three years to ensure its safety and functionality. The dam's location in a picturesque setting amidst the natural landscape of Jackson County, Oregon, adds to its significance for water resource and climate enthusiasts.

Overall, Bradshaw plays a crucial role in sustaining agricultural activities in the region by providing irrigation water storage. Its presence highlights the importance of proper dam management and maintenance to ensure the safety of surrounding communities and ecosystems. This data-rich summary offers valuable insights for those interested in water resource management and the impact of dams on local environments in Oregon.

Year Completed

1966

Dam Length

2350

Dam Height

47

River Or Stream

LOST CREEK, HARRISON CREEK AND

Primary Dam Type

Earth

Surface Area

46

Hydraulic Height

45

Drainage Area

2.75

Nid Storage

785

Structural Height

49.5

Outlet Gates

Slide (sluice gate)

Hazard Potential

Significant

Nid Height

50
       
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.