Tb Pierce Pond Dam Reservoir Report

Last Updated: December 5, 2025

Tb Pierce Pond Dam, also known as Hammerbeck-Clary-Seay Dam, is a private structure located in Spartanburg, South Carolina along the Tyger River.


°F

°F

mph

Wind

%

Humidity

Summary

Built in 1962 by the USDA NRCS, this Earth dam stands at 33 feet tall and spans 140 feet in length, providing a storage capacity of 143 acre-feet for recreational purposes. However, recent inspections have revealed a poor condition assessment and a high hazard potential, indicating the need for maintenance and risk management measures.

Despite its age, Tb Pierce Pond Dam continues to attract water resource and climate enthusiasts due to its scenic location and recreational opportunities. The dam features an uncontrolled spillway and outlet gates, making it an ideal spot for fishing, boating, and wildlife observation. However, with its hazard potential rated as high, there is a pressing need for regular inspections and potential upgrades to ensure the safety of the surrounding community and ecosystem.

As a private dam regulated by the South Carolina Department of Health and Environmental Control, Tb Pierce Pond Dam serves as a focal point for environmental conservation efforts in the region. Its moderate risk assessment rating highlights the importance of implementing proper risk management measures and emergency action plans to address potential safety concerns and protect the surrounding area from the impacts of dam failure.

Year Completed

1962

Dam Length

140

Dam Height

33

River Or Stream

TR-TYGER RIVER

Primary Dam Type

Earth

Surface Area

10

Nid Storage

143

Outlet Gates

Uncontrolled

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

33
       
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.
View more

Area Campgrounds