Marceline New Reservoir Dam Reservoir Report

Last Updated: December 18, 2025

Marceline New Reservoir Dam, located in Rothville, Missouri, is a local government-owned structure with a primary purpose of recreation and water supply.


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Summary

Built in 1980 by the engineering firm Rhodes & Sayre Eng., this earth-type dam stands at 49 feet in height and spans 1300 feet in length. The dam has a storage capacity of 3100 acre-feet, providing ample water supply for the surrounding area.

With a surface area of 177 acres and a drainage area of 2348 acres, Marceline New Reservoir Dam plays a crucial role in managing water resources in Chariton County. The dam's spillway, with a width of 75 feet, helps control the maximum discharge of 3351 cubic feet per second. Despite being classified as having a high hazard potential, the dam is rated as being in satisfactory condition, with the last inspection conducted in March 2016.

The dam's strategic location on Slater Branch and its connection to the Rock Island District make it a key asset for water resource management in the region. With its recreational and water supply functions, Marceline New Reservoir Dam serves as a vital infrastructure that enhances the resilience of the local community to climate variability and supports sustainable water use practices.

Year Completed

1980

Dam Length

1300

Dam Height

49

River Or Stream

SLATER BRANCH

Primary Dam Type

Earth

Surface Area

177

Drainage Area

2348

Nid Storage

3100

Structural Height

49

Outlet Gates

None

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

49
       
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.