Big Sand Watershed Structure Y-32-09b Dam Reservoir Report
Last Updated: December 6, 2025
The Big Sand Watershed Structure Y-32-09b Dam, also known as the Inman Dam, is a local government-owned earth dam located in Carroll, Mississippi.
°F
°F
mph
Wind
%
Humidity
Summary
Completed in 1965, this dam serves the primary purpose of flood risk reduction along the Little Sand Creek. With a height of 38 feet and a length of 979 feet, the dam has a storage capacity of 809 acre-feet and a normal storage of 188 acre-feet.
Managed by the USDA NRCS, the Big Sand Watershed Dam is regulated by the Mississippi Department of Environmental Quality and undergoes regular inspections. Despite its high hazard potential and poor condition assessment, the dam plays a crucial role in mitigating flood risks in the area. As a key feature in the local water resource infrastructure, the dam's importance in safeguarding the surrounding communities from potential flooding events cannot be understated. Enthusiasts of water resources and climate will find the structure's design and function fascinating, as it stands as a testament to the ongoing efforts to manage water resources effectively in Mississippi.
Year Completed |
1965 |
Dam Length |
979 |
Dam Height |
38 |
River Or Stream |
LITTLE SAND CREEK |
Primary Dam Type |
Earth |
Drainage Area |
1.83 |
Nid Storage |
809 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
38 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Batupan Bogue At Grenada
|
134cfs |
Big Black River At West
|
223cfs |
Yalobusha River At Grenada
|
3080cfs |
Tallahatchie River At Money
|
6080cfs |
Abiaca Creek At Cruger
|
44cfs |
Harland Creek Nr Howard
|
3340cfs |
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-32-09b Dam