West Fork Big Creek Dam B- 79 Reservoir Report

Last Updated: December 15, 2025

West Fork Big Creek Dam B-79, also known as Site B-79, is a local government-owned earth dam located in Brooklyn, Missouri.


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Summary

Built in 2005 by the USDA NRCS, this dam serves the primary purpose of flood risk reduction along the West Fork Big Creek. Standing at a height of 26 feet with a structural height of 35 feet and a length of 400 feet, the dam has a storage capacity of 49 acre-feet and a drainage area of 90 acres.

With a moderate risk assessment rating and a low hazard potential, West Fork Big Creek Dam B-79 is a crucial infrastructure for managing flood risks in the region. The dam, constructed with stone core and soil foundation, features an uncontrolled spillway with a width of 20 feet. While the dam currently holds a "Not Rated" condition assessment, its emergency action plan status and risk management measures are yet to be determined, highlighting the importance of ongoing monitoring and maintenance to ensure its continued effectiveness in flood protection. For water resource and climate enthusiasts, West Fork Big Creek Dam B-79 presents a fascinating case study in local government-led flood risk reduction efforts in Missouri.

Year Completed

2005

Dam Length

400

Dam Height

26

River Or Stream

WEST FORK BIG CREEK

Primary Dam Type

Earth

Surface Area

10

Hydraulic Height

26

Drainage Area

90

Nid Storage

49

Structural Height

35

Outlet Gates

None

Hazard Potential

Low

Foundations

Soil

Nid Height

35
       
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.