Blockton Watershed Site E-2 Reservoir Report
Last Updated: December 13, 2025
Blockton Watershed Site E-2, located in Taylor, Iowa, is a vital earth dam constructed in 1973 by the USDA NRCS for fire protection, stock, and small fish pond purposes.
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Summary
The dam stands at a height of 34 feet and spans a length of 705 feet, providing a storage capacity of 247 acre-feet and covering a surface area of 14.9 acres. Situated on the TR-Platte River, this dam plays a crucial role in flood risk reduction within the region, with a low hazard potential and a moderate risk assessment rating.
Managed by the Iowa DNR, Blockton Watershed Site E-2 is subject to state regulation, inspection, and enforcement to ensure its structural integrity and operational efficiency. The dam, primarily designed for water resource management, serves as a key component in the local government's efforts to safeguard the surrounding area from potential flooding events. Despite not being currently rated for condition assessment, this earth dam remains a critical infrastructure piece in mitigating flood risks and protecting the community of Athelstan.
With Cindy Axne as the congressional representative overseeing this district, Blockton Watershed Site E-2 stands as a testament to collaborative efforts between federal and local agencies in managing water resources and climate-related challenges. As water resource and climate enthusiasts, understanding the significance of this dam in fire protection, stock management, and flood risk reduction underscores the importance of sustainable water infrastructure investment and management in safeguarding communities against natural disasters and promoting environmental resilience in the face of a changing climate.
Year Completed |
1973 |
Dam Length |
705 |
Dam Height |
34 |
River Or Stream |
TR-PLATTE RIVER |
Primary Dam Type |
Earth |
Surface Area |
14.9 |
Drainage Area |
1.4 |
Nid Storage |
247 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
34 |
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.
Blockton Watershed Site E-2