Platte River Site 8-B Reservoir Report
Last Updated: December 16, 2025
Platte River Site 8-B, also known as Platte River Trib Wtrsd Dam 8-B, is a local government-owned structure located in PARNELL, Missouri, along the TR-PLATTE RIVER.
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Summary
Built in 1963 by the USDA NRCS, this earth dam stands at a height of 36 feet and stretches 500 feet in length, serving primarily for flood risk reduction. With a storage capacity of 76 acre-feet and a drainage area of 204 square miles, the dam has a low hazard potential and is deemed to be in satisfactory condition as of the last assessment in 2007.
Despite its relatively modest size, Platte River Site 8-B plays a crucial role in reducing flood risks and providing recreational opportunities in the Worth County area. The dam, regulated by the DAM AND RESERVOIR SAFETY PROG in Missouri, has a maximum discharge capacity of 792 cfs and a spillway width of 7 feet. While the structure has not been modified in recent years, it undergoes inspections every five years to ensure its continued safety and functionality. Additionally, the presence of associated locks or outlet gates at the site is currently non-existent, further emphasizing its simplicity and effectiveness in flood control.
Overall, Platte River Site 8-B stands as a reliable and essential component of the local water resource management system, contributing to the overall resilience of the region against potential flooding events. With its low hazard potential, satisfactory condition, and consistent regulatory oversight, this earth dam serves as a testament to the successful collaboration between local government agencies and the USDA NRCS in safeguarding communities and enhancing the quality of life for residents in Worth County, Missouri.
Year Completed |
1963 |
Dam Length |
500 |
Dam Height |
36 |
River Or Stream |
TR-PLATTE RIVER |
Primary Dam Type |
Earth |
Surface Area |
9 |
Drainage Area |
204 |
Nid Storage |
76 |
Structural Height |
36 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
36 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Platte River Site 8-B