Lake Wallace Dam dam
Lake Wallace Dam
Located in Marlboro, South Carolina, Lake Wallace Dam stands as a vital piece of infrastructure for the state's water management system. Completed in 1955, this earth dam spans 2,500 feet with a height of 19 feet, providing irrigation and recreation opportunities for the surrounding area. With a storage capacity of 1,170 acre-feet, the dam plays a crucial role in regulating water flow from Crooked Creek.
Despite its significant contributions, Lake Wallace Dam faces challenges with a high hazard potential and poor condition assessment. The dam is owned and regulated by the South Carolina Department of Health and Environmental Control, ensuring that it meets state standards for inspection, enforcement, and permitting. With its last inspection in July 2020, efforts are ongoing to maintain and improve the dam's safety and functionality for the benefit of both residents and the environment.
As a key structure in the Wilmington District, Lake Wallace Dam is a symbol of resilience and resourcefulness in water resource management. With its primary purpose of irrigation and additional benefits for recreation, the dam serves as a reminder of the importance of sustainable infrastructure development in the face of climate challenges. Ongoing risk assessment and management measures are essential to ensure the safety and longevity of this critical water resource for future generations.
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 Lake Wallace Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Pee Dee River Nr Bennettsville | 2,270 cfs | → |
| Big Shoe Heel Creek Nr Laurinburg | 26 cfs | → |
| Lumber River Near Maxton | 164 cfs | → |
| Pee Dee R Nr Rockingham | 1,880 cfs | → |
| Black Creek Near Quinby | 175 cfs | → |
| Black Creek Near Mcbee | 29 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Wallace Dam.
Boat launches
- Darlington County
- West Us 74 Highway 1333, Rockingham
- State Road 1759, Lilesville
- Lester Road Dillon County
Campgrounds
- Cheraw State Park
- H. Cooper Black
- Bass Lake Campground
- Sugarloaf Mountain Rec Area - Sand Hills State Forest
- Chalk Banks - Lumber River State Park
- John Culberth Campsite
Track Lake Wallace 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 Lake Wallace Dam
Where does the data for Lake Wallace 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 High 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 Lake Wallace Dam.