Hull Reclamation Site 10 Reservoir Report

Last Updated: December 13, 2025

Hull Reclamation Site 10, located in Eddyville, Iowa, is a state-owned recreational area situated along the TR- Drainage Ditch #2.


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Summary

This earth dam, completed in 1988, stands at 42 feet high and spans a length of 1040 feet, with a storage capacity of 399 acre-feet. The site serves multiple purposes including fire protection, stock, small fish pond, and recreation, making it a valuable resource for the community.

Managed by the Iowa Department of Natural Resources (IOWA DNR), Hull Reclamation Site 10 boasts a low hazard potential and a moderate risk assessment rating. With its state-regulated status, the dam undergoes regular inspections, permitting, and enforcement to ensure its safety and functionality. While the condition assessment is currently listed as "Not Rated," the site continues to serve as an important water resource for the region, offering 23.3 acres of surface area for recreational activities and wildlife habitat.

Given its prime location in Mahaska County, Iowa, and its proximity to the Rock Island District, Hull Reclamation Site 10 is a notable example of sustainable water management and climate adaptation efforts. With its earth dam structure and controlled spillway, the site showcases the importance of responsible stewardship in maintaining water resources for both human and ecological needs. As water resource and climate enthusiasts, this site serves as a model for how effective regulation and management can support the resilience and longevity of vital infrastructure in the face of changing environmental conditions.

Year Completed

1988

Dam Length

1040

Dam Height

42

River Or Stream

TR- DRAINAGE DITCH #2

Primary Dam Type

Earth

Surface Area

23.3

Drainage Area

0.31

Nid Storage

399

Hazard Potential

Low

Foundations

Soil

Nid Height

42
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.