Dresser No. 10 Dam Reservoir Report

Last Updated: December 6, 2025

Located in Jefferson County, Missouri, Dresser No.


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Summary

10 Dam is a privately owned structure designed by Dresser Minerals and completed in 1974. Standing at a height of 100 feet with a length of 765 feet, this dam on the TR Big River serves a variety of purposes, including water storage and flood control. With a normal storage capacity of 1118 acre-feet and a maximum storage of 1329 acre-feet, the dam plays a vital role in managing water resources in the area.

The dam's spillway type is uncontrolled, with a width of 14 feet, and it has a high hazard potential rating. Despite this, the structure is deemed to be in satisfactory condition as of the last assessment in 2007. Regular inspections by the Dam and Reservoir Safety Program ensure the safety and integrity of Dresser No. 10 Dam, which also boasts a moderate risk assessment rating. The surrounding area benefits from the dam's ability to mitigate flood risks and provide a reliable water supply for the community of Blackwell.

Climate and water resource enthusiasts will appreciate the significant role Dresser No. 10 Dam plays in the local ecosystem, as well as its impact on the overall water management strategies in Jefferson County, Missouri. The dam's construction, design, and operational features provide essential data for understanding the complex interactions between human-made structures and natural water systems. Furthermore, the dam's presence highlights the importance of ongoing maintenance and regulatory oversight to ensure the safety and functionality of critical infrastructure in the face of changing climatic conditions and water resource demands.

Year Completed

1974

Dam Length

765

Dam Height

100

River Or Stream

TR BIG RIVER

Primary Dam Type

Other

Surface Area

40

Drainage Area

187

Nid Storage

1329

Structural Height

100

Outlet Gates

None

Hazard Potential

High

Foundations

Rock

Nid Height

100
       
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.