Hosler (Reeder Gulch Reservoir Report

Last Updated: December 5, 2025

Hosler (Reeder Gulch) is a concrete dam located in Jackson, Oregon, with a primary purpose of water supply.


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Summary

Completed in 1928, this dam stands at a height of 114 feet and has a length of 546 feet. It has a maximum storage capacity of 888 acre-feet and a normal storage capacity of 820 acre-feet, serving multiple purposes including fire protection, stock, small fish pond, hydroelectric, and water supply for the surrounding area.

With a high hazard potential and very high risk assessment rating, Hosler (Reeder Gulch) is closely monitored by the Federal Energy Regulatory Commission. The dam features a controlled spillway with a width of 102 feet and other controlled outlet gates. Despite its age, the dam's condition assessment is not available, highlighting the need for ongoing maintenance and inspection to ensure its structural integrity and safety for downstream communities.

Located near Ashland, OR, Hosler (Reeder Gulch) plays a crucial role in managing the flow of Ashland Creek, Bear Creek, and the Rogue River. As climate change continues to impact water resources, this dam remains a vital asset for securing water supply and mitigating the risks of floods and droughts in the region. Its historical significance and modern challenges make it a focal point for water resource and climate enthusiasts seeking sustainable solutions for the future.

Year Completed

1928

Dam Length

546

Dam Height

114

River Or Stream

Ashland Crk, Bear Crk, Rogue R

Primary Dam Type

Concrete

Surface Area

21

Drainage Area

19.8

Nid Storage

888

Structural Height

114

Outlet Gates

Other Controlled - 6

Hazard Potential

High

Foundations

Rock

Nid Height

114
       
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.