J.H. Holland No. 2 Reservoir Report
Nearby: Tolle & Ditch #1 Curiton
Last Updated: December 12, 2025
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Summary
Holland No. 2 is a privately owned earth dam located in Avondale, Colorado, along Chico Creek-TR. Built in 1949 by the USDA NRCS, this dam serves multiple purposes including fire protection, stock watering, and small fish pond recreation. With a height of 17 feet and a length of 690 feet, it has a storage capacity of 114 acre-feet and covers a surface area of 21 acres.
Despite being classified as a low hazard potential structure, J.H. Holland No. 2 poses a high risk due to its condition assessment being labeled as "Not Rated." The dam has not undergone inspection since March 1991, raising concerns about its structural integrity and the safety of its surrounding areas. With no Emergency Action Plan prepared and outdated risk assessment measures, there is an urgent need for thorough evaluation and potential rehabilitation to ensure the safety of the community and the environment.
Water resource and climate enthusiasts should take note of J.H. Holland No. 2 as a significant infrastructure supporting various water-related activities in the region. Its location in a high-risk area, combined with the lack of recent inspections, highlights the importance of proactive maintenance and monitoring to prevent potential disasters and protect the local ecosystem. The involvement of state regulatory agencies such as the DWR underscores the need for continued oversight and collaboration to address any existing risks and ensure the long-term sustainability of this essential water resource structure.
Year Completed |
1949 |
Dam Length |
690 |
Dam Height |
17 |
River Or Stream |
CHICO CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
21 |
Hydraulic Height |
18 |
Drainage Area |
1 |
Nid Storage |
114 |
Structural Height |
22 |
Hazard Potential |
Low |
Nid Height |
22 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Fountain Creek Near Pinon
|
91cfs |
Fountain Creek Near Fountain
|
204cfs |
Fountain Creek At Pueblo
|
124cfs |
Arkansas River Near Avondale
|
373cfs |
St. Charles River At Vineland
|
7cfs |
Jimmy Camp Creek At Fountain
|
1cfs |
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.
J.H. Holland No. 2