Hacklebarney Woods Dam Reservoir Report

Last Updated: December 13, 2025

Located in Montgomery County, Iowa, the Hacklebarney Woods Dam is a recreational earth dam constructed in 1969 by the USDA NRCS.


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Summary

With a height of 44 feet and a length of 575 feet, this dam provides a storage capacity of 208 acre-feet, making it a vital resource for water management in the area. Situated on the TR-Middle Nodaway River, the dam is regulated by the Iowa DNR and holds a low hazard potential rating.

Despite being uncontrolled, the dam's spillway type ensures efficient water discharge when needed. The surrounding Hacklebarney Woods offer a picturesque setting for outdoor enthusiasts to enjoy activities such as hiking, fishing, and picnicking. With a moderate risk assessment rating, the dam is regularly inspected and maintained to ensure public safety and continued recreational access. For water resource and climate enthusiasts, the Hacklebarney Woods Dam stands as both a functional infrastructure and a natural sanctuary in the heart of Iowa.

Year Completed

1969

Dam Length

575

Dam Height

44

River Or Stream

TR-MIDDLE NODAWAY RIVER

Primary Dam Type

Earth

Surface Area

9.7

Drainage Area

0.12

Nid Storage

208

Hazard Potential

Low

Foundations

Soil

Nid Height

44
       
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.