Longview Lake Dam Lower dam
Longview Lake Dam Lower
Longview Lake Dam Lower, located in Raleigh, North Carolina, is a local government-owned structure primarily used for recreation purposes. Built in 1945, this earth dam stands at a structural height of 20 feet with a hydraulic height of 14 feet. It has a storage capacity of 143 acre-feet and serves a drainage area of 736 square miles, providing vital water resource management in the region.
With a high hazard potential, Longview Lake Dam Lower underwent its last inspection in December 2020, which assessed its condition as satisfactory. The dam poses a significant risk in case of failure, highlighting the importance of regular maintenance and monitoring. Despite its age, the structure continues to serve its purpose effectively, showcasing the resilience of engineering solutions in managing water resources and climate challenges.
The dam's emergency action plan and risk management measures are crucial components in ensuring public safety and mitigating potential risks. With state regulation by NCDEQ's Dam Safety Program, Longview Lake Dam Lower remains a key asset in the region's water infrastructure network. As climate change impacts water resources, the maintenance and upkeep of such structures become paramount in safeguarding communities and enhancing resilience in the face of environmental challenges.
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 Longview Lake Dam Lower -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Crabtree Creek At Us 1 At Raleigh | 17 cfs | → |
| Walnut Creek At Sunnybrook Drive Nr Raleigh | 4 cfs | → |
| Marsh C Nr New Hope | 1 cfs | → |
| 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 | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Longview Lake Dam Lower.
Boat launches
- Milburnie Dam Bridge Raleigh
- Neuse River Trail Wake County
- Walnut Creek Trail Raleigh
- Neuse River Trail Raleigh
- Lake Wheeler Boat Ramp
- Lake Trail Wake County
Campgrounds
- Durant Nature Park
- William B. Umstead State Park
- Blue Heron Campground
- Osprey Nest Campground
- Bootleg Point Campground
- Shoreline Campground
Track Longview Lake Dam Lower 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 Longview Lake Dam Lower
Where does the data for Longview Lake Dam Lower 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 Longview Lake Dam Lower.