Summary
Built in 1934, this earth dam stands at a height of 14 feet and has a storage capacity of 300 acre-feet, serving the primary purpose of irrigation in the region. The dam spans a length of 420 feet and covers a surface area of 50 acres, with a drainage area of 1.2 square miles.
With a low hazard potential and a condition assessment labeled as "Not Rated," Guano Slough (Blm) remains a vital water resource infrastructure in the area. The dam has a maximum discharge capacity of 2900 cubic feet per second and features a slide (sluice gate) as its outlet gates. While it is regulated by the Oregon Water Resources Department and subject to state inspection and enforcement, the dam has not been rated for its current condition.
This water infrastructure, situated in the Portland District of the US Army Corps of Engineers, plays a crucial role in supporting agricultural activities in the region. With its historical significance and ongoing importance in water management, Guano Slough (Blm) stands as a testament to the intersection of human ingenuity and environmental stewardship in sustaining water resources for future generations.
Year Completed |
1934 |
Dam Length |
420 |
Dam Height |
14 |
River Or Stream |
GUANO SLOUGH |
Primary Dam Type |
Earth |
Surface Area |
50 |
Hydraulic Height |
12 |
Drainage Area |
1.2 |
Nid Storage |
300 |
Structural Height |
14 |
Outlet Gates |
Slide (sluice gate) |
Hazard Potential |
Low |
Nid Height |
14 |
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.
Guano Slough (Blm)