Sas Lower (Four Star Ventures Llc Dam) dam
Sas Lower (Four Star Ventures Llc Dam)
Sas Lower (Four Star Ventures LLC Dam), also known as Umstead Hotel Lake Dam, is a private dam located in Cary, North Carolina. With a primary purpose of recreation, this earth dam stands at a structural height of 25 feet and has a hydraulic height of 23 feet. It boasts a storage capacity of 50 acre-feet, providing a scenic surface area of 4 acres for water enthusiasts to enjoy.
Despite its significant hazard potential, the dam's condition assessment in 2018 deemed it satisfactory. The dam has not been modified in recent years and is inspected regularly to ensure its safety. With a last inspection date in November 2018, the dam has emergency action plans in place to meet guidelines and mitigate risks in case of an unforeseen event. Situated on Crabtree Creek-Tr, this dam adds to the recreational charm of the area while also serving as a vital water resource.
While not under state regulation, Sas Lower Dam remains an important asset in the region, offering both recreational opportunities and a supplementary water source. With its satisfying condition, regular inspections, and emergency preparedness, this dam stands as a symbol of responsible dam management in the face of potential hazards. For water resource and climate enthusiasts, Sas Lower Dam is a fascinating example of the intersection between human development and environmental safety in North Carolina.
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 Sas Lower (Four Star Ventures Llc Dam) -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Crabtree Cr At Ebenezer Church Rd Nr Raleigh | 12 cfs | → |
| Crabtree Creek At Hwy 70 At Raleigh | 12 cfs | → |
| Rocky Branch Below Pullen Drive At Raleigh | 0 cfs | → |
| Swift Creek Near Apex | 1 cfs | → |
| Crabtree Creek At Us 1 At Raleigh | 16 cfs | → |
| Northeast Creek At Sr1100 Nr Genlee | 9 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Sas Lower (Four Star Ventures Llc Dam).
Boat launches
- Lake Trail Wake County
- Walnut Creek Trail Raleigh
- Lake Wheeler Boat Ramp
- Barton's Creek Boat Ramp
- Durham County
- Milburnie Dam Bridge Raleigh
Campgrounds
- William B. Umstead State Park
- Durant Nature Park
- Rolling View - Falls Lake
- Blue Heron Campground
- Osprey Nest Campground
- Bootleg Point Campground
Track Sas Lower (Four Star Ventures Llc 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 Sas Lower (Four Star Ventures Llc Dam)
Where does the data for Sas Lower (Four Star Ventures Llc 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 Significant 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 Sas Lower (Four Star Ventures Llc Dam).