Big Sand Watershed Structure Y-32-15 Dam Reservoir Report
Last Updated: April 1, 2026
The Big Sand Watershed Structure Y-32-15 Dam, also known as Vizor Dam, is located in Greenwood, Mississippi, and is owned by the local government.
Summary
Built in 1966 by the USDA NRCS, this earth dam stands at a height of 35 feet and has a structural height of 37 feet. The dam's primary purpose is flood risk reduction, serving the Teoc Creek watershed with a storage capacity of 1,026 acre-feet.
The dam is regulated by the Mississippi Department of Environmental Quality and undergoes regular inspections to ensure its safety and efficacy. Despite being classified as having a low hazard potential, the condition assessment in 2015 rated it as poor. However, with a moderate risk rating, the dam still plays a crucial role in managing flood risks in the area. As climate change continues to impact water resources, structures like the Big Sand Watershed Dam will be essential in safeguarding communities against the growing challenges of extreme weather events.
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15-Day Weather Outlook
Year Completed |
1966 |
Dam Length |
420 |
Dam Height |
35 |
River Or Stream |
UNT OF TEOC CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
35 |
Drainage Area |
2.7 |
Nid Storage |
1026 |
Structural Height |
37 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
37 |
Seasonal Comparison
5-Day Hourly Forecast Detail
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.
Big Sand Watershed Structure Y-32-15 Dam