Pine River Watershed P. R. 1 Reservoir Report
Last Updated: December 5, 2025
Located in La Plata County, Colorado, the Pine River Watershed P.
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Summary
R. 1, also known as the Archie Cruz Dam, was completed in 1967 by the USDA NRCS. This private dam serves as a crucial flood risk reduction structure in the region, with a height of 45 feet and a length of 530 feet. Situated along Spring Creek-TR, the dam has a normal storage capacity of 98 acre-feet and a maximum discharge rate of 588 cubic feet per second.
Although deemed to have a low hazard potential, the dam's condition was assessed as fair during the last inspection in September 2016. Despite being state-regulated and permitted, with regular inspections and enforcement in place, there are no associated emergency action plans or inundation maps prepared for this structure. With a risk assessment rating of High (2), it is evident that the Pine River Watershed P. R. 1 plays a critical role in managing water resources and mitigating flood risks in the area, making it an essential component of the local water infrastructure.
Year Completed |
1967 |
Dam Length |
530 |
Dam Height |
45 |
River Or Stream |
SPRING CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
45 |
Nid Storage |
138 |
Structural Height |
55 |
Hazard Potential |
Low |
Nid Height |
55 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Spring Creek At La Boca
|
40cfs |
Los Pinos River At La Boca
|
39cfs |
Piedra River Near Arboles
|
113cfs |
Los Pinos River Near Ignacio
|
16cfs |
San Juan River Near Carracas
|
194cfs |
Salt Creek Near Oxford
|
-888cfs |
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.
Pine River Watershed P. R. 1