Maumelle Nursery Pond Dam Reservoir Report

Last Updated: December 5, 2025

Maumelle Nursery Pond Dam, also known as Frank Lyon Jr.


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Summary

Nursery Pond Dam, is a state-owned structure located in Pulaski County, Arkansas. Completed in 1989, this earth dam stands at a height of 60 feet and stretches 545 feet in length. Its primary purpose is to serve as a Fish and Wildlife Pond, providing a habitat for various aquatic species in the area. With a normal storage capacity of 1350 acre-feet and a surface area of 74 acres, the dam plays a significant role in maintaining water resources for the surrounding ecosystem.

The dam is situated on Twin Creek and is regulated by the Arkansas Natural Resources Commission (ANRC). It is classified as having a significant hazard potential, although its condition assessment has not been rated. The last inspection was conducted in September 2015, and the dam is regularly monitored and maintained by the state regulatory agency. Despite the lack of a spillway type and limited information on its hydraulic features, Maumelle Nursery Pond Dam serves as an important structure for water resource management and conservation efforts in the region.

Water resource and climate enthusiasts will be interested in the ecological impact of Maumelle Nursery Pond Dam, as it provides a valuable habitat for fish and wildlife in the area. The dam's construction and management reflect the state's commitment to protecting and preserving its natural resources. As a state-regulated structure with a focus on environmental conservation, Maumelle Nursery Pond Dam stands as a testament to the importance of sustainable water management practices in the face of changing climate patterns and increasing water demands.

Year Completed

1989

Dam Length

545

Dam Height

60

River Or Stream

TWIN CREEK

Primary Dam Type

Earth

Surface Area

74

Drainage Area

2.3

Nid Storage

1985

Hazard Potential

Significant

Nid Height

60
       
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.
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