Shavano Valley #1 - Sv-1 Reservoir Report
Nearby: Shavano Valley #2 - Sv-2 Alexander
Last Updated: December 5, 2025
Shavano Valley #1 - Sv-1 is a public utility dam located in Montrose, Colorado, with a primary purpose of flood risk reduction.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1993 by the USDA NRCS, this earth dam stands at a height of 43 feet and has a hydraulic height of 41 feet, providing a maximum storage capacity of 277 acre-feet and a normal storage of 184 acre-feet. The dam spans a length of 1390 feet and covers a surface area of 15 acres, serving to control the flow of Coal Creek-TR and protect the surrounding area from potential flooding events.
With a high hazard potential and a satisfactory condition assessment as of the last inspection in October 2019, Shavano Valley #1 - Sv-1 is regulated by the Colorado Department of Water Resources and undergoes regular inspections and enforcement measures to ensure its structural integrity and operational efficiency. Despite its moderate risk assessment rating, the dam's uncontrolled spillway and outlet gates pose a potential risk in the event of a significant discharge event. Emergency action plans are in place, although updates and revisions may be necessary to meet current guidelines and ensure effective risk management protocols.
Overall, Shavano Valley #1 - Sv-1 serves as a crucial infrastructure for flood risk reduction in the region, highlighting the importance of water resource management and climate resilience efforts. As water resource and climate enthusiasts, it is essential to stay informed about the status and condition of such dams to support sustainable practices and safeguard communities against potential natural disasters.
Year Completed |
1993 |
Dam Length |
1390 |
Dam Height |
43 |
River Or Stream |
COAL CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
15 |
Hydraulic Height |
41 |
Drainage Area |
2 |
Nid Storage |
277 |
Structural Height |
54 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
54 |
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.
Shavano Valley #1 - Sv-1
Roubideau Creek Segment 1
Rainbow Meadows
Olathe Community Park
Gunnison Gorge National Conservation Area