Mccarty Holman Dam dam
Mccarty Holman Dam
Mccarty Holman Dam, located in Rankin, Mississippi, was completed in 1986 and serves as a vital resource for recreation in the area. Owned privately, the dam stands at a height of 36 feet and has a storage capacity of 960 acre-feet. The dam, primarily made of earth with a stone core, spans 745 feet and regulates the flow of Thompson Creek. With a low hazard potential and a moderate risk assessment, the dam provides essential water management for the surrounding area.
Managed by the Mississippi Department of Environmental Quality, Mccarty Holman Dam is state-regulated, inspected, and enforced to ensure its structural integrity and safety. The dam operates with uncontrolled spillways and outlet gates, allowing for controlled discharge in times of high water levels. While the dam's condition assessment is currently not rated, its risk management measures help mitigate potential risks and ensure the safety of the surrounding community.
With its picturesque surroundings and important role in water resource management, Mccarty Holman Dam is a key feature in the Vicksburg District. Its purpose for recreation and water regulation make it a valuable asset in Mississippi's infrastructure, highlighting the intersection of environmental conservation and public enjoyment.
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.
- 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.
- 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.
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, environmental 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.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Mccarty Holman Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Strong River At D`Lo | 129 cfs | → |
| Pearl River At Jackson | 2,430 cfs | → |
| Lynch Creek At Jackson | 207 cfs | → |
| Hanging Moss Creek Nr Jackson | 203 cfs | → |
| Pearl River Nr Rockport | 5,700 cfs | → |
| Pearl River Nr Monticello | 4,510 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mccarty Holman Dam.
Boat launches
- Spillway Road Rankin County
- East River Road Rankin County
- West River Road Jackson
- Fannin Landing Circle Rankin County
- Madison Landing Circle 101, Ridgeland
- Browns Landing Road Madison County
Track Mccarty Holman Dam in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Mccarty Holman Dam
Where does the data for Mccarty Holman Dam come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the Low hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Mccarty Holman Dam.