Raintree Dam #2 Reservoir Report

Last Updated: December 9, 2025

Located in Hillsboro, Missouri, Raintree Dam #2 is a privately owned recreational dam completed in 1989.


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Summary

Designed by SHANNON, WILSON, this Earth-type dam stands at a structural height of 55 feet and spans 1000 feet in length, holding a maximum storage capacity of 988 acre-feet of water. Situated on the BELEW CREEK TRIBUTARY, the dam serves as a popular spot for outdoor activities such as fishing, boating, and picnicking, offering a serene escape for water resource and climate enthusiasts.

Despite its satisfying condition assessment, Raintree Dam #2 presents a high hazard potential, requiring regular inspections and enforcement to ensure safety. The dam features an uncontrolled spillway with a width of 17 feet, capable of discharging up to 5582 cubic feet per second during peak flows. With a drainage area of 653 square miles, the dam plays a crucial role in managing water resources in the region and mitigating flood risks along the BELEW CREEK TRIBUTARY, attracting visitors with its scenic beauty and recreational opportunities.

As a key component of the DAM AND RESERVOIR SAFETY PROGRAM in Missouri, Raintree Dam #2 is subject to state regulations and permitting, with inspections conducted every two years to maintain its satisfactory condition. Despite moderate risk assessment, the dam continues to provide valuable benefits to the community, serving as a vital infrastructure for water storage, recreation, and environmental conservation. With its strategic location and well-maintained facilities, Raintree Dam #2 stands as a testament to the importance of responsible water resource management and climate resilience in the face of changing environmental conditions.

Year Completed

1989

Dam Length

1000

Dam Height

55

River Or Stream

BELEW CREEK TRIBUTARY

Primary Dam Type

Earth

Surface Area

50

Drainage Area

653

Nid Storage

988

Structural Height

55

Outlet Gates

None

Hazard Potential

High

Foundations

Rock

Nid Height

55
       
Seasonal Comparison

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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.