Summary
Built in 1880, this buttress-type dam stands at a height of 12 feet and has a length of 74 feet, serving primarily for flood risk reduction. With a storage capacity of 1000 acre-feet, Mcbrien plays a crucial role in irrigation and water supply for the surrounding area. The dam is regulated by the Department of Water Resources and is subject to regular state inspections, ensuring its safe operation.
Despite its age, Mcbrien is considered to have a low hazard potential and is assessed as being in satisfactory condition as of September 2017. With a surface area of 700 acres and a hydraulic height of 11 feet, the dam continues to provide effective flood risk reduction for the region. The last inspection in May 2020 confirmed the dam's structural integrity and its compliance with safety regulations. As an essential infrastructure for water resource management in Modoc County, Mcbrien remains a key asset for climate and water enthusiasts to appreciate and monitor for its continued effectiveness in protecting the community from potential flooding events.
Year Completed |
1880 |
Dam Length |
74 |
Dam Height |
12 |
River Or Stream |
Pit River |
Primary Dam Type |
Buttress |
Surface Area |
700 |
Hydraulic Height |
11 |
Nid Storage |
1000 |
Hazard Potential |
Low |
Nid Height |
12 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Big Sage
|
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Big Sage Campground
|
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Reservoir F
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Reservoir F Campground
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Mcbrien