Big Creek-Hurricane Creek L- 4a Reservoir Report

Last Updated: December 19, 2025

Located in Carroll, Missouri, the Big Creek-Hurricane Creek L- 4a dam was completed in 2008 by the USDA NRCS to serve as a flood risk reduction measure along a tributary to Peavine Branch.


°F

°F

mph

Wind

%

Humidity

Summary

This earth dam stands at a height of 24.7 feet, with a hydraulic height of 24 feet and a structural height of 29 feet. With a capacity to store 189.6 acre-feet of water, it covers a surface area of 2.6 acres and serves a drainage area of 90.24 square miles.

The dam's spillway is uncontrolled and 30 feet wide, with a maximum discharge capacity of 184.6 cubic feet per second. Despite its low hazard potential and not being regulated by the state, the dam is designed to mitigate moderate flood risks in the area. With a primary purpose of flood risk reduction, the Big Creek-Hurricane Creek L- 4a dam plays a crucial role in safeguarding the surrounding communities and ecosystem from potential water-related disasters.

While the dam's condition assessment is currently not rated, its risk management measures are considered moderate, with no Emergency Action Plan (EAP) in place. As a key infrastructure project in the region, the Big Creek-Hurricane Creek L- 4a dam underscores the importance of sustainable water resource management and climate resilience in mitigating the impacts of extreme weather events on local communities and ecosystems.

Year Completed

2008

Dam Length

705

Dam Height

24.7

River Or Stream

TRIB. TO PEAVINE BR.

Primary Dam Type

Earth

Surface Area

2.6

Hydraulic Height

24

Drainage Area

90.24

Nid Storage

189.6

Structural Height

29

Outlet Gates

None

Hazard Potential

Low

Foundations

Soil

Nid Height

29
       
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.