Pol30 Reservoir Report
Last Updated: December 6, 2025
Pol30 is a private dam located in Polk, Florida, specifically in the city of Mulberry.
°F
°F
mph
Wind
%
Humidity
Summary
This earth dam, with a height of 6.02 feet and a length of 9617 feet, serves the primary purpose of tailings containment. It has a storage capacity of 10591.65 acre-feet, with a normal storage level of 7041.52 acre-feet and a surface area of 100 acres. Despite being state-regulated and having state permitting, inspection, and enforcement in place, its hazard potential is currently classified as undetermined, with a condition assessment of "Not Rated."
The dam, situated in an unnamed pond within the Jacksonville District, poses an interesting case for water resource and climate enthusiasts due to its unique characteristics and location. With no federal agency involvement in its ownership, funding, design, construction, or regulation, Pol30 stands as a testament to private sector management of critical infrastructure. Furthermore, its proximity to the river or stream adds an additional layer of complexity to its operation and maintenance, especially considering the potential impact of climate change on water levels and discharge patterns in the area.
As an essential component of the landscape in Polk County, Florida, Pol30's status as an earth dam raises questions about its long-term sustainability and resilience in the face of evolving environmental conditions. With no documented history of modifications or risk assessments, there is a need for further investigation into the dam's structural integrity and emergency preparedness measures. For those interested in water resource management and climate adaptation, Pol30 offers a compelling case study in the intersection of infrastructure, regulation, and environmental stewardship.
Dam Length |
9617 |
Dam Height |
6.02 |
River Or Stream |
UNNAMED POND |
Primary Dam Type |
Earth |
Surface Area |
100 |
Nid Storage |
10591.65 |
Hazard Potential |
Undetermined |
Nid Height |
6 |
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.
Pol30
Keysville Park and Community Center
Circle B Bar Reserve
Common Ground Park
Bealsville Park
Springhead Park