Central Holding Co. Dam Reservoir Report
Nearby: Merritt/Roden Dam Artesian Lake Dam
Last Updated: December 13, 2025
Central Holding Co.
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Summary
Dam, located in Carroll, Iowa, along the TR-Raccoon River, was completed in 1988 by the USDA NRCS. This privately-owned earth dam stands at 38 feet high and spans 280 feet in length, with a storage capacity of 114 acre-feet. While primarily serving purposes such as fire protection and stock or small fish pond management, the dam also supports recreation and water supply needs in the area.
Managed by the Iowa DNR and classified as low hazard potential, Central Holding Co. Dam is regularly inspected and meets state regulatory standards. Despite its uncontrolled spillway type, the dam's risk assessment is moderate. With a risk management plan in place, this structure ensures the safety of the surrounding community and ecosystem. Water resource and climate enthusiasts can appreciate the ecological importance and functional design of this essential infrastructure within the region.
Year Completed |
1988 |
Dam Length |
280 |
Dam Height |
38 |
River Or Stream |
TR-RACCOON RIVER |
Primary Dam Type |
Earth |
Surface Area |
6.3 |
Drainage Area |
0.4 |
Nid Storage |
114 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
38 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Raccoon River Near Jefferson
|
530cfs |
North Raccoon River Near Sac City
|
312cfs |
Middle Raccoon River Near Bayard
|
121cfs |
Middle Raccoon River At Panora
|
92cfs |
Des Moines River Near Stratford
|
1720cfs |
Des Moines River At Fort Dodge
|
1320cfs |
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.
Central Holding Co. Dam