Neville Dam Reservoir Report

Last Updated: December 6, 2025

Neville Dam, located in Madison, Missouri, is a privately owned structure primarily designed for recreational purposes.


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Summary

Completed in 1964, this earth dam stands at a height of 30 feet, with a storage capacity of 64 acre-feet and a normal storage level of 33 acre-feet. The dam overlooks the TR to Castor River and covers a surface area of 4 acres, serving as a popular spot for water resource and climate enthusiasts seeking outdoor activities.

Despite its recreational appeal, Neville Dam poses a high hazard potential, although its condition assessment remains unrated. With no state jurisdiction or regulation, the dam's inspection frequency and emergency preparedness measures are unclear. The St. Louis District of the US Army Corps of Engineers oversees the dam, yet specifics regarding operation, maintenance, and risk management remain undisclosed. Neville Dam's unique design as an earth buttress dam offers a captivating vista for visitors interested in exploring water resources and climate dynamics in the region.

For water resource and climate enthusiasts, Neville Dam in MARQUAND, Missouri presents a fascinating structure with a rich history dating back to the 1960s. Embracing its private ownership and recreational focus, the dam invites visitors to appreciate its engineering marvel and natural surroundings along the TR to Castor River. While the dam's high hazard potential raises questions about its safety and maintenance, the lack of state regulation and inspection may prompt further exploration into the governance and management of water resources in the area. Overall, Neville Dam offers a compelling destination for those intrigued by the intersection of water infrastructure, climate resilience, and outdoor recreation in the heart of Missouri.

Year Completed

1964

Dam Height

30

River Or Stream

TR TO CASTOR RIVER

Primary Dam Type

Earth

Surface Area

4

Drainage Area

180

Nid Storage

64

Structural Height

30

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

30
       
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.