Blockton Watershed Site E-1 Reservoir Report
Last Updated: December 13, 2025
Blockton Watershed Site E-1 is a local government-owned dam in Taylor, Iowa, with a primary purpose of fire protection, stock, or small fish pond.
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Summary
Built in 1973 by USDA NRCS, this earth dam stands at a height of 30 feet and spans 539 feet in length. With a storage capacity of 86 acre-feet, the dam covers a surface area of 4.7 acres and serves to reduce flood risks in the area.
Located along the TR-PLATTE river in the Rock Island District, Blockton Watershed Site E-1 is regulated by the Iowa DNR and undergoes state permitting, inspection, and enforcement. The dam's hazard potential is rated as low, with a moderate risk assessment score of 3. While the condition of the dam is currently not rated, it meets emergency action plan guidelines and has not experienced any major modifications since its construction.
Water resource and climate enthusiasts will find Blockton Watershed Site E-1 to be an essential infrastructure for fire protection and flood risk reduction in the area. With its strategic location and state-regulated operations, this dam plays a crucial role in managing water resources and ensuring the safety of the surrounding community.
Year Completed |
1973 |
Dam Length |
539 |
Dam Height |
30 |
River Or Stream |
TR-PLATTE |
Primary Dam Type |
Earth |
Surface Area |
4.7 |
Drainage Area |
0.54 |
Nid Storage |
86 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
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-1