Summary
Built in 1890, this Earth dam stands at a height of 14 feet and has a capacity of 212 acre-feet for irrigation purposes. The dam also serves for fire protection, stock, small fish pond, and water supply in the region. With a fair condition assessment and low hazard potential, Slack and Weiss is a crucial water resource infrastructure in the area.
Managed by private owners, Slack and Weiss is regulated by the Colorado Department of Water Resources for permitting, inspection, and enforcement. The dam has a spillway width of 10 feet and a maximum discharge capacity of 414 cubic feet per second. Despite being a moderate risk structure, the dam's risk management measures and inundation maps preparation status are not specified in the data. The dam's last inspection was conducted in August 2014, with a scheduled inspection frequency of every 6 years.
Located in a picturesque setting in Walden, Colorado, Slack and Weiss provides essential water resources for the surrounding community. With its historical significance and multifunctional uses, the dam continues to play a vital role in supporting irrigation, livestock, and fire protection needs in the region. As climate and water resource enthusiasts, exploring the engineering marvel and operational aspects of Slack and Weiss can offer valuable insights into sustainable water management practices and infrastructure maintenance.
Year Completed |
1890 |
Dam Length |
420 |
Dam Height |
14 |
River Or Stream |
NINEGAR CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
15 |
Hydraulic Height |
14 |
Nid Storage |
212 |
Structural Height |
22 |
Hazard Potential |
Low |
Nid Height |
22 |
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.
Slack And Weiss