Ncsu Unit No. 4 Dam dam
Ncsu Unit No. 4 Dam
Ncsu Unit No. 4 Dam, located in Wake County, North Carolina, is a state-regulated structure owned by the State of North Carolina and primarily used for irrigation purposes. The dam, classified as an earth dam, has a hydraulic height of 23 feet and a structural height of 27 feet, with a length of 250 feet. It impounds Walnut Creek-Tr, creating a surface area of 2 acres and a storage capacity of 26 acre-feet.
Despite being in fair condition and having a high hazard potential, Ncsu Unit No. 4 Dam is regularly inspected by the North Carolina Department of Environmental Quality's Dam Safety Program. The last inspection took place in December 2020, with a frequency of every 2 years. In case of emergencies, the dam does not have an Emergency Action Plan (EAP) prepared, but given its condition assessment and hazard potential, it is crucial to prioritize the development of an EAP to ensure the safety of surrounding areas and communities in the event of a breach or failure.
With its importance for irrigation and water resource management, Ncsu Unit No. 4 Dam serves as a critical infrastructure in Wake County. As water resource and climate enthusiasts, it is essential to monitor the condition and management of such structures to safeguard against potential risks and ensure sustainable water use for the future.
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 Ncsu Unit No. 4 Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Rocky Branch Below Pullen Drive At Raleigh | 0 cfs | → |
| Crabtree Creek At Hwy 70 At Raleigh | 13 cfs | → |
| Crabtree Cr At Ebenezer Church Rd Nr Raleigh | 14 cfs | → |
| Crabtree Creek At Us 1 At Raleigh | 17 cfs | → |
| Swift Creek Near Apex | 1 cfs | → |
| Marsh C Nr New Hope | 1 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Ncsu Unit No. 4 Dam.
Boat launches
- Walnut Creek Trail Raleigh
- Lake Trail Wake County
- Lake Wheeler Boat Ramp
- Milburnie Dam Bridge Raleigh
- Neuse River Trail Wake County
- Neuse River Trail Raleigh
Campgrounds
- William B. Umstead State Park
- Durant Nature Park
- Blue Heron Campground
- Osprey Nest Campground
- Bootleg Point Campground
- Shoreline Campground
Track Ncsu Unit No. 4 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 Ncsu Unit No. 4 Dam
Where does the data for Ncsu Unit No. 4 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 Ncsu Unit No. 4 Dam.